From ac569b2e3dfed20a40c0253465c3ef21583b3cbb Mon Sep 17 00:00:00 2001
From:  <>
Date: Tue, 10 Sep 2024 09:33:55 +0000
Subject: [PATCH] Deployed 7a41678 with MkDocs version: 1.6.1

---
 404.html                                      |  597 ++++-
 about-top-10/contributors/index.html          |  609 +++++-
 about-top-10/in-the-news/index.html           |  611 +++++-
 .../old-versions-and-translations/index.html  |  611 +++++-
 archive/2014/index.html                       | 1489 +++++++++++++
 archive/2016/index.html                       | 1491 +++++++++++++
 archive/2018/0x01-about-owasp/index.html      | 1490 +++++++++++++
 archive/2018/0x02-about-project/index.html    | 1634 ++++++++++++++
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 .../2018/c1-security-requirements/index.html  | 1768 +++++++++++++++
 archive/2018/c10-errors-exceptions/index.html | 1647 ++++++++++++++
 .../index.html                                | 1614 ++++++++++++++
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 archive/2018/c4-encode-escape-data/index.html | 1767 +++++++++++++++
 archive/2018/c5-validate-inputs/index.html    | 1846 ++++++++++++++++
 archive/2018/c6-digital-identity/index.html   | 1935 +++++++++++++++++
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 .../c8-protect-data-everywhere/index.html     | 1805 +++++++++++++++
 archive/2018/c9-security-logging/index.html   | 1704 +++++++++++++++
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 .../related-owasp-projects/index.html         |  603 ++++-
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 sitemap.xml                                   |  110 +-
 sitemap.xml.gz                                |  Bin 477 -> 660 bytes
 the-top-10/c1-accesscontrol/index.html        |  609 +++++-
 .../index.html                                |  611 +++++-
 the-top-10/c2-crypto/index.html               |  609 +++++-
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 the-top-10/c4-secure-architecture/index.html  |  609 +++++-
 the-top-10/c5-secure-by-default/index.html    |  609 +++++-
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 .../index.html                                |  609 +++++-
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 v3/en/c3-secure-database                      |   15 +
 v3/en/c5-validate-inputs                      |   15 +
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 64 files changed, 42064 insertions(+), 520 deletions(-)
 create mode 100644 archive/2014/index.html
 create mode 100644 archive/2016/index.html
 create mode 100644 archive/2018/0x01-about-owasp/index.html
 create mode 100644 archive/2018/0x02-about-project/index.html
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 create mode 100644 archive/2018/c3-secure-database/index.html
 create mode 100644 archive/2018/c4-encode-escape-data/index.html
 create mode 100644 archive/2018/c5-validate-inputs/index.html
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 create mode 100644 archive/2018/c8-protect-data-everywhere/index.html
 create mode 100644 archive/2018/c9-security-logging/index.html
 create mode 100644 archive/2018/final-word/index.html
 create mode 100644 archive/2018/info/index.html
 create mode 100644 v3/en/0x04-introduction
 create mode 100644 v3/en/c1-security-requirements
 create mode 100644 v3/en/c10-errors-exceptions
 create mode 100644 v3/en/c2-leverage-security-frameworks-libraries
 create mode 100644 v3/en/c3-secure-database
 create mode 100644 v3/en/c5-validate-inputs
 create mode 100644 v3/en/c6-digital-identity
 create mode 100644 v3/en/c7-enforce-access-controls
 create mode 100644 v3/en/c8-protect-data-everywhere
 create mode 100644 v3/en/c9-security-logging
 create mode 100644 v4/en/0x02-about-project/index.html
 create mode 100644 v4/en/0x03-about-structure/index.html
 create mode 100644 v4/en/c1-accesscontrol/index.html
 create mode 100644 v4/en/c10-stop-server-side-request-forgery/index.html
 create mode 100644 v4/en/c2-crypto/index.html
 create mode 100644 v4/en/c3-validate-input-and-handle-exceptions/index.html
 create mode 100644 v4/en/c4-secure-architecture/index.html
 create mode 100644 v4/en/c5-secure-by-default/index.html
 create mode 100644 v4/en/c6-use-secure-dependencies/index.html
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 create mode 100644 v4/en/c8-help-the-browser-defend-the-user/index.html
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diff --git a/404.html b/404.html
index 31cdf13..303014d 100644
--- a/404.html
+++ b/404.html
@@ -85,9 +85,7 @@
     
       
 
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-
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+<header class="md-header" data-md-component="header">
   <nav class="md-header__inner md-grid" aria-label="Header">
     <a href="/." title="OWASP Top 10 Proactive Controls" class="md-header__button md-logo" aria-label="OWASP Top 10 Proactive Controls" data-md-component="logo">
       
@@ -208,6 +206,94 @@
       
         
           
+            
+<nav class="md-tabs" aria-label="Tabs" data-md-component="tabs">
+  <div class="md-grid">
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+  
+  
+  
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+        <a href="/." class="md-tabs__link">
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+  Current Top 10 (WIP, 2024)
+
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+
+    
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+
+      
+        
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+  
+  
+    
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+      <li class="md-tabs__item">
+        <a href="/archive/2018/0x01-about-owasp/" class="md-tabs__link">
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+  
+  Top 10 2018
+
+        </a>
+      </li>
+    
+  
+
+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="/archive/2016/" class="md-tabs__link">
+        
+  
+    
+  
+  Top 10 2016
+
+      </a>
+    </li>
+  
+
+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="/archive/2014/" class="md-tabs__link">
+        
+  
+    
+  
+  Top 10 2014
+
+      </a>
+    </li>
+  
+
+      
+    </ul>
+  </div>
+</nav>
+          
         
       
       <main class="md-main" data-md-component="main">
@@ -221,8 +307,10 @@
                     
 
 
+  
+
 
-<nav class="md-nav md-nav--primary" aria-label="Navigation" data-md-level="0">
+<nav class="md-nav md-nav--primary md-nav--lifted" aria-label="Navigation" data-md-level="0">
   <label class="md-nav__title" for="__drawer">
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@@ -257,23 +345,23 @@
     
     
       
-        
+      
         
       
     
     
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+    <li class="md-nav__item md-nav__item--nested">
       
         
         
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-          <label class="md-nav__link" for="__nav_1" id="__nav_1_label" tabindex="">
+          <label class="md-nav__link" for="__nav_1" id="__nav_1_label" tabindex="0">
             
   
   <span class="md-ellipsis">
-    Introduction
+    Current Top 10 (WIP, 2024)
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         <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="false">
           <label class="md-nav__title" for="__nav_1">
+            <span class="md-nav__icon md-icon"></span>
+            Current Top 10 (WIP, 2024)
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+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    
+    
+    
+      
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+        
+      
+    
+    
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+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_1" >
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+          
+          <label class="md-nav__link" for="__nav_1_1" id="__nav_1_1_label" tabindex="0">
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+    Introduction
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+
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             Introduction
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@@ -377,9 +505,10 @@
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-    
-      
-      
+              
+            
+              
+                
   
   
   
@@ -388,19 +517,19 @@
     
     
       
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             <span class="md-nav__icon md-icon"></span>
             About the Top 10
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@@ -487,9 +616,10 @@
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-    
-      
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             The Top 10 List
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     </li>
   
 
+              
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+  
+  
+  
+    <li class="md-nav__item">
+      <a href="/final-word/" class="md-nav__link">
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+  <span class="md-ellipsis">
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-      <a href="/final-word/" class="md-nav__link">
+      <a href="/archive/2018/0x01-about-owasp/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About OWASP
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="/archive/2018/0x02-about-project/" class="md-nav__link">
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+  <span class="md-ellipsis">
+    About Project
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+  
+
+      </a>
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+  
+
+              
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+              
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+  
+  
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+      <a href="/archive/2018/0x03-about-structure/" class="md-nav__link">
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+  
+  <span class="md-ellipsis">
+    About Structure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="/archive/2018/0x04-introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
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+  
+
+      </a>
+    </li>
+  
+
+              
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+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="/archive/2018/c1-security-requirements/" class="md-nav__link">
+        
+  
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+    C1: Define Security Requirements
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+  
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+
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+  
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+      <a href="/archive/2018/c2-leverage-security-frameworks-libraries/" class="md-nav__link">
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+    C2: Leverage Security Frameworks and Libraries
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+
+      </a>
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+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="/archive/2018/c3-secure-database/" class="md-nav__link">
+        
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+  <span class="md-ellipsis">
+    C3: Secure Database Access
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+  
+
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+  
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+      <a href="/archive/2018/c4-encode-escape-data/" class="md-nav__link">
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+    C4: Encode and Escape Data
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+  
+
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+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="/archive/2018/c5-validate-inputs/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+      </a>
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+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="/archive/2018/c6-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="/archive/2018/c7-enforce-access-controls/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
+
+      </a>
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+  
+
+              
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+  
+  
+  
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+      <a href="/archive/2018/c8-protect-data-everywhere/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Protect Data Everywhere
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
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+      <a href="/archive/2018/c9-security-logging/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
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+  
+
+              
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+  
+  
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+    <li class="md-nav__item">
+      <a href="/archive/2018/c10-errors-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Handle All Errors and Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
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+      <a href="/archive/2018/final-word/" class="md-nav__link">
         
   
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@@ -785,6 +1278,54 @@
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+  
+
+    
+      
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+      <a href="/archive/2016/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2016
+  </span>
+  
+
+      </a>
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+  
+
+    
+      
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+  
+  
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+    <li class="md-nav__item">
+      <a href="/archive/2014/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2014
+  </span>
+  
+
+      </a>
+    </li>
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@@ -894,7 +1435,7 @@ <h1>404 - Page not found!</h1>
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index 8b8752e..fea6cf5 100644
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@@ -96,9 +96,7 @@
     
       
 
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@@ -219,6 +217,98 @@
       
         
           
+            
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+  <div class="md-grid">
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+        <a href="../.." class="md-tabs__link">
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+
+        </a>
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+
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+  
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+      <a href="../../archive/2016/" class="md-tabs__link">
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+  
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+  
+  Top 10 2016
+
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+    </li>
+  
+
+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="../../archive/2014/" class="md-tabs__link">
+        
+  
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+  Top 10 2014
+
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+    </li>
+  
+
+      
+    </ul>
+  </div>
+</nav>
+          
         
       
       <main class="md-main" data-md-component="main">
@@ -232,8 +322,10 @@
                     
 
 
+  
+
 
-<nav class="md-nav md-nav--primary" aria-label="Navigation" data-md-level="0">
+<nav class="md-nav md-nav--primary md-nav--lifted" aria-label="Navigation" data-md-level="0">
   <label class="md-nav__title" for="__drawer">
     <a href="../.." title="OWASP Top 10 Proactive Controls" class="md-nav__button md-logo" aria-label="OWASP Top 10 Proactive Controls" data-md-component="logo">
       
@@ -262,6 +354,8 @@
       
   
   
+    
+  
   
   
     
@@ -271,28 +365,74 @@
         
         
       
+      
+        
+      
     
     
-    <li class="md-nav__item md-nav__item--section md-nav__item--nested">
+    <li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
       
         
         
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+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1" checked>
         
           
           <label class="md-nav__link" for="__nav_1" id="__nav_1_label" tabindex="">
             
   
   <span class="md-ellipsis">
-    Introduction
+    Current Top 10 (WIP, 2024)
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             <span class="md-nav__icon md-icon"></span>
           </label>
         
-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="false">
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="true">
           <label class="md-nav__title" for="__nav_1">
+            <span class="md-nav__icon md-icon"></span>
+            Current Top 10 (WIP, 2024)
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    
+    
+    
+      
+      
+        
+          
+          
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--section md-nav__item--nested">
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+          
+          <label class="md-nav__link" for="__nav_1_1" id="__nav_1_1_label" tabindex="">
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+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_1_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_1">
             <span class="md-nav__icon md-icon"></span>
             Introduction
           </label>
@@ -388,9 +528,10 @@
     </li>
   
 
-    
-      
-      
+              
+            
+              
+                
   
   
     
@@ -401,7 +542,10 @@
     
     
       
+      
         
+          
+          
         
       
     
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+          <label class="md-nav__link" for="__nav_1_2" id="__nav_1_2_label" tabindex="">
             
   
   <span class="md-ellipsis">
@@ -424,8 +568,8 @@
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+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_2_label" aria-expanded="true">
+          <label class="md-nav__title" for="__nav_1_2">
             <span class="md-nav__icon md-icon"></span>
             About the Top 10
           </label>
@@ -549,9 +693,10 @@
     </li>
   
 
-    
-      
-      
+              
+            
+              
+                
   
   
   
@@ -560,7 +705,10 @@
     
     
       
+      
         
+          
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+          <label class="md-nav__link" for="__nav_1_3" id="__nav_1_3_label" tabindex="">
             
   
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+          <label class="md-nav__title" for="__nav_1_3">
             <span class="md-nav__icon md-icon"></span>
             The Top 10 List
           </label>
@@ -827,19 +975,430 @@
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+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
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+  
+
+      </a>
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+  
+
+              
+            
+          </ul>
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+      
+    </li>
+  
+
+    
+      
+      
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+  
+  
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+    
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+        
+      
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+        
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+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" >
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+          
+          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="0">
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+  
+  <span class="md-ellipsis">
+    Top 10 2018
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+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
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+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_2">
+            <span class="md-nav__icon md-icon"></span>
+            Top 10 2018
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
   
   
   
   
     <li class="md-nav__item">
-      <a href="../../final-word/" class="md-nav__link">
+      <a href="../../archive/2018/0x01-about-owasp/" class="md-nav__link">
         
   
   <span class="md-ellipsis">
-    Final Word
+    About OWASP
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x02-about-project/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Project
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x03-about-structure/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Structure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x04-introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c1-security-requirements/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c2-leverage-security-frameworks-libraries/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c3-secure-database/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c4-encode-escape-data/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c5-validate-inputs/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c6-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c7-enforce-access-controls/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c8-protect-data-everywhere/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Protect Data Everywhere
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c9-security-logging/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c10-errors-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Handle All Errors and Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2016/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2016
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2014/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2014
   </span>
   
 
@@ -1040,7 +1599,7 @@ <h2 id="contributors-from-previous-versions">Contributors from previous versions
     </div>
     
     
-    <script id="__config" type="application/json">{"base": "../..", "features": ["navigation.sections", "navigation.tracking", "navigation.path", "navigation.top", "search.suggest", "search.highlight", "content.tabs.link", "content.code.annotation", "content.code.copy"], "search": "../../assets/javascripts/workers/search.07f07601.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script>
+    <script id="__config" type="application/json">{"base": "../..", "features": ["navigation.sections", "navigation.tracking", "navigation.path", "navigation.tabs", "navigation.top", "search.suggest", "search.highlight", "content.tabs.link", "content.code.annotation", "content.code.copy"], "search": "../../assets/javascripts/workers/search.07f07601.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script>
     
     
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diff --git a/about-top-10/in-the-news/index.html b/about-top-10/in-the-news/index.html
index 4e2846a..f353927 100644
--- a/about-top-10/in-the-news/index.html
+++ b/about-top-10/in-the-news/index.html
@@ -96,9 +96,7 @@
     
       
 
-  
-
-<header class="md-header md-header--shadow" data-md-component="header">
+<header class="md-header" data-md-component="header">
   <nav class="md-header__inner md-grid" aria-label="Header">
     <a href="../.." title="OWASP Top 10 Proactive Controls" class="md-header__button md-logo" aria-label="OWASP Top 10 Proactive Controls" data-md-component="logo">
       
@@ -219,6 +217,98 @@
       
         
           
+            
+<nav class="md-tabs" aria-label="Tabs" data-md-component="tabs">
+  <div class="md-grid">
+    <ul class="md-tabs__list">
+      
+        
+  
+  
+    
+  
+  
+    
+    
+      
+  
+  
+    
+  
+  
+    
+    
+      <li class="md-tabs__item md-tabs__item--active">
+        <a href="../.." class="md-tabs__link">
+          
+  
+  Current Top 10 (WIP, 2024)
+
+        </a>
+      </li>
+    
+  
+
+    
+  
+
+      
+        
+  
+  
+  
+    
+    
+      <li class="md-tabs__item">
+        <a href="../../archive/2018/0x01-about-owasp/" class="md-tabs__link">
+          
+  
+  Top 10 2018
+
+        </a>
+      </li>
+    
+  
+
+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="../../archive/2016/" class="md-tabs__link">
+        
+  
+    
+  
+  Top 10 2016
+
+      </a>
+    </li>
+  
+
+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="../../archive/2014/" class="md-tabs__link">
+        
+  
+    
+  
+  Top 10 2014
+
+      </a>
+    </li>
+  
+
+      
+    </ul>
+  </div>
+</nav>
+          
         
       
       <main class="md-main" data-md-component="main">
@@ -232,8 +322,10 @@
                     
 
 
+  
+
 
-<nav class="md-nav md-nav--primary" aria-label="Navigation" data-md-level="0">
+<nav class="md-nav md-nav--primary md-nav--lifted" aria-label="Navigation" data-md-level="0">
   <label class="md-nav__title" for="__drawer">
     <a href="../.." title="OWASP Top 10 Proactive Controls" class="md-nav__button md-logo" aria-label="OWASP Top 10 Proactive Controls" data-md-component="logo">
       
@@ -262,6 +354,8 @@
       
   
   
+    
+  
   
   
     
@@ -271,28 +365,74 @@
         
         
       
+      
+        
+      
     
     
-    <li class="md-nav__item md-nav__item--section md-nav__item--nested">
+    <li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
       
         
         
-        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1" >
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1" checked>
         
           
           <label class="md-nav__link" for="__nav_1" id="__nav_1_label" tabindex="">
             
   
   <span class="md-ellipsis">
-    Introduction
+    Current Top 10 (WIP, 2024)
   </span>
   
 
             <span class="md-nav__icon md-icon"></span>
           </label>
         
-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="false">
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="true">
           <label class="md-nav__title" for="__nav_1">
+            <span class="md-nav__icon md-icon"></span>
+            Current Top 10 (WIP, 2024)
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    
+    
+    
+      
+      
+        
+          
+          
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--section md-nav__item--nested">
+      
+        
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+          
+          <label class="md-nav__link" for="__nav_1_1" id="__nav_1_1_label" tabindex="">
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+
+            <span class="md-nav__icon md-icon"></span>
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             Introduction
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@@ -388,9 +528,10 @@
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-    
-      
-      
+              
+            
+              
+                
   
   
     
@@ -401,7 +542,10 @@
     
     
       
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+          
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+          <label class="md-nav__link" for="__nav_1_2" id="__nav_1_2_label" tabindex="">
             
   
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             <span class="md-nav__icon md-icon"></span>
             About the Top 10
           </label>
@@ -612,9 +756,10 @@
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-    
-      
-      
+              
+            
+              
+                
   
   
   
@@ -623,7 +768,10 @@
     
     
       
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+          
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@@ -632,10 +780,10 @@
       
         
         
-        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_3" >
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_3" >
         
           
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+          <label class="md-nav__link" for="__nav_1_3" id="__nav_1_3_label" tabindex="">
             
   
   <span class="md-ellipsis">
@@ -646,8 +794,8 @@
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-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_3_label" aria-expanded="false">
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+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_3_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_3">
             <span class="md-nav__icon md-icon"></span>
             The Top 10 List
           </label>
@@ -890,19 +1038,430 @@
     </li>
   
 
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    
+    
     
       
       
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" >
+        
+          
+          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    Top 10 2018
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_2">
+            <span class="md-nav__icon md-icon"></span>
+            Top 10 2018
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
   
   
   
   
     <li class="md-nav__item">
-      <a href="../../final-word/" class="md-nav__link">
+      <a href="../../archive/2018/0x01-about-owasp/" class="md-nav__link">
         
   
   <span class="md-ellipsis">
-    Final Word
+    About OWASP
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x02-about-project/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Project
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x03-about-structure/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Structure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x04-introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c1-security-requirements/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c2-leverage-security-frameworks-libraries/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c3-secure-database/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c4-encode-escape-data/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c5-validate-inputs/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c6-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c7-enforce-access-controls/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c8-protect-data-everywhere/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Protect Data Everywhere
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c9-security-logging/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c10-errors-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Handle All Errors and Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2016/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2016
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2014/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2014
   </span>
   
 
@@ -1073,7 +1632,7 @@ <h2 id="2017">2017</h2>
 <li>[Feb 2017 ] Featured in "<a href="http://assets.unisys.com/Documents/Global/POVPapers/POV_170062_ApplicationSecurityProgramProtectAgainstDataBreaches.pdf">Application Security Program: Protect    Against Data Breaches</a>"</li>
 </ul>
 <h2 id="2016">2016</h2>
-<p>The OWASP Top 10 Proactive Controls 2016 (v2) were released on Jan, 14th 2016.</p>
+<p>The OWASP Top 10 Proactive Controls 2016 (v2) were released on Jan 14, 2016.</p>
 <ul>
 <li>[1 Oct 2016] Presented at <a href="http://conference.phpnw.org.uk/phpnw16/speakers/katy-anton/">PHPNW16</a></li>
 <li>[5 July 2016] Featured in <a href="https://www.thoughtworks.com/insights/blog/incorporating-security-best-practices-agile-teams">Incorporating Security Best Practices     into Agile   Teams</a></li>
@@ -1162,7 +1721,7 @@ <h2 id="2016">2016</h2>
     </div>
     
     
-    <script id="__config" type="application/json">{"base": "../..", "features": ["navigation.sections", "navigation.tracking", "navigation.path", "navigation.top", "search.suggest", "search.highlight", "content.tabs.link", "content.code.annotation", "content.code.copy"], "search": "../../assets/javascripts/workers/search.07f07601.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script>
+    <script id="__config" type="application/json">{"base": "../..", "features": ["navigation.sections", "navigation.tracking", "navigation.path", "navigation.tabs", "navigation.top", "search.suggest", "search.highlight", "content.tabs.link", "content.code.annotation", "content.code.copy"], "search": "../../assets/javascripts/workers/search.07f07601.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script>
     
     
       <script src="../../assets/javascripts/bundle.56dfad97.min.js"></script>
diff --git a/about-top-10/old-versions-and-translations/index.html b/about-top-10/old-versions-and-translations/index.html
index 1e285cb..fec1a3f 100644
--- a/about-top-10/old-versions-and-translations/index.html
+++ b/about-top-10/old-versions-and-translations/index.html
@@ -96,9 +96,7 @@
     
       
 
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-
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+<header class="md-header" data-md-component="header">
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     <a href="../.." title="OWASP Top 10 Proactive Controls" class="md-header__button md-logo" aria-label="OWASP Top 10 Proactive Controls" data-md-component="logo">
       
@@ -219,6 +217,98 @@
       
         
           
+            
+<nav class="md-tabs" aria-label="Tabs" data-md-component="tabs">
+  <div class="md-grid">
+    <ul class="md-tabs__list">
+      
+        
+  
+  
+    
+  
+  
+    
+    
+      
+  
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+  
+  
+    
+    
+      <li class="md-tabs__item md-tabs__item--active">
+        <a href="../.." class="md-tabs__link">
+          
+  
+  Current Top 10 (WIP, 2024)
+
+        </a>
+      </li>
+    
+  
+
+    
+  
+
+      
+        
+  
+  
+  
+    
+    
+      <li class="md-tabs__item">
+        <a href="../../archive/2018/0x01-about-owasp/" class="md-tabs__link">
+          
+  
+  Top 10 2018
+
+        </a>
+      </li>
+    
+  
+
+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="../../archive/2016/" class="md-tabs__link">
+        
+  
+    
+  
+  Top 10 2016
+
+      </a>
+    </li>
+  
+
+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="../../archive/2014/" class="md-tabs__link">
+        
+  
+    
+  
+  Top 10 2014
+
+      </a>
+    </li>
+  
+
+      
+    </ul>
+  </div>
+</nav>
+          
         
       
       <main class="md-main" data-md-component="main">
@@ -232,8 +322,10 @@
                     
 
 
+  
+
 
-<nav class="md-nav md-nav--primary" aria-label="Navigation" data-md-level="0">
+<nav class="md-nav md-nav--primary md-nav--lifted" aria-label="Navigation" data-md-level="0">
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@@ -262,6 +354,8 @@
       
   
   
+    
+  
   
   
     
@@ -271,28 +365,74 @@
         
         
       
+      
+        
+      
     
     
-    <li class="md-nav__item md-nav__item--section md-nav__item--nested">
+    <li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
       
         
         
-        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1" >
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1" checked>
         
           
           <label class="md-nav__link" for="__nav_1" id="__nav_1_label" tabindex="">
             
   
   <span class="md-ellipsis">
-    Introduction
+    Current Top 10 (WIP, 2024)
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             <span class="md-nav__icon md-icon"></span>
           </label>
         
-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="false">
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="true">
           <label class="md-nav__title" for="__nav_1">
+            <span class="md-nav__icon md-icon"></span>
+            Current Top 10 (WIP, 2024)
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    
+    
+    
+      
+      
+        
+          
+          
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--section md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_1" >
+        
+          
+          <label class="md-nav__link" for="__nav_1_1" id="__nav_1_1_label" tabindex="">
+            
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_1_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_1">
             <span class="md-nav__icon md-icon"></span>
             Introduction
           </label>
@@ -388,9 +528,10 @@
     </li>
   
 
-    
-      
-      
+              
+            
+              
+                
   
   
     
@@ -401,7 +542,10 @@
     
     
       
+      
         
+          
+          
         
       
     
@@ -410,10 +554,10 @@
       
         
         
-        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" checked>
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_2" checked>
         
           
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+          <label class="md-nav__link" for="__nav_1_2" id="__nav_1_2_label" tabindex="">
             
   
   <span class="md-ellipsis">
@@ -424,8 +568,8 @@
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-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="true">
-          <label class="md-nav__title" for="__nav_2">
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_2_label" aria-expanded="true">
+          <label class="md-nav__title" for="__nav_1_2">
             <span class="md-nav__icon md-icon"></span>
             About the Top 10
           </label>
@@ -567,9 +711,10 @@
     </li>
   
 
-    
-      
-      
+              
+            
+              
+                
   
   
   
@@ -578,7 +723,10 @@
     
     
       
+      
         
+          
+          
         
       
     
@@ -587,10 +735,10 @@
       
         
         
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+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_3" >
         
           
-          <label class="md-nav__link" for="__nav_3" id="__nav_3_label" tabindex="">
+          <label class="md-nav__link" for="__nav_1_3" id="__nav_1_3_label" tabindex="">
             
   
   <span class="md-ellipsis">
@@ -601,8 +749,8 @@
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-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_3_label" aria-expanded="false">
-          <label class="md-nav__title" for="__nav_3">
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_3_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_3">
             <span class="md-nav__icon md-icon"></span>
             The Top 10 List
           </label>
@@ -845,19 +993,430 @@
     </li>
   
 
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    
+    
     
       
       
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" >
+        
+          
+          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    Top 10 2018
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
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+      <a href="../../archive/2014/" class="md-nav__link">
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+  <span class="md-ellipsis">
+    Top 10 2014
   </span>
   
 
@@ -941,7 +1500,7 @@ <h1 id="old-versions-and-translations">Old Versions and Translations</h1>
 <p>Starting with version <code>v4</code> in 2024, we don't accept inclusion of translations into the OWASP Top 10 Proactive Controls directly and are only providing the English version.</p>
 <p>We do encourage translators to create translated versions and host them themselves and will link to those external sites/documents if notified about them.</p>
 <h2 id="owasp-top-10-proactive-controls-2018-v3">OWASP Top 10 Proactive Controls 2018 (v3)</h2>
-<p>You can find the <a href="https://github.com/OWASP/www-project-proactive-controls/tree/master/v3">OWASP Top 10 Proactive Controls 2018 (vv) on GitHub</a>:</p>
+<p>You can find the <a href="https://github.com/OWASP/www-project-proactive-controls/tree/master/v3">OWASP Top 10 Proactive Controls 2018 on GitHub</a>:</p>
 <ul>
 <li>English version: <a href="https://github.com/OWASP/www-project-proactive-controls/blob/master/v3/OWASP_Top_10_Proactive_Controls_V3.pdf">pdf</a>, <a href="https://github.com/OWASP/www-project-proactive-controls/blob/master/v3/OWASP_Top_10_Proactive_Controls_V3.docx">docx</a>, <a href="https://github.com/OWASP/www-project-proactive-controls/blob/master/v3/OWASP_Top_Ten_Proactive_Controls_v3.pptx">pptx</a></li>
 <li>Available Translations (in alphabetical order):</li>
@@ -1048,7 +1607,7 @@ <h2 id="owasp-top-10-proactive-controls-2014-v1">OWASP Top 10 Proactive Controls
     </div>
     
     
-    <script id="__config" type="application/json">{"base": "../..", "features": ["navigation.sections", "navigation.tracking", "navigation.path", "navigation.top", "search.suggest", "search.highlight", "content.tabs.link", "content.code.annotation", "content.code.copy"], "search": "../../assets/javascripts/workers/search.07f07601.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script>
+    <script id="__config" type="application/json">{"base": "../..", "features": ["navigation.sections", "navigation.tracking", "navigation.path", "navigation.tabs", "navigation.top", "search.suggest", "search.highlight", "content.tabs.link", "content.code.annotation", "content.code.copy"], "search": "../../assets/javascripts/workers/search.07f07601.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script>
     
     
       <script src="../../assets/javascripts/bundle.56dfad97.min.js"></script>
diff --git a/archive/2014/index.html b/archive/2014/index.html
new file mode 100644
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+      <li class="md-tabs__item">
+        <a href="../2018/0x01-about-owasp/" class="md-tabs__link">
+          
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+    <li class="md-tabs__item">
+      <a href="../2016/" class="md-tabs__link">
+        
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+
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+    <li class="md-tabs__item md-tabs__item--active">
+      <a href="./" class="md-tabs__link">
+        
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+
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+          <label class="md-nav__title" for="__nav_1_1">
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+            Introduction
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
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+  
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+  
+    <li class="md-nav__item">
+      <a href="../.." class="md-nav__link">
+        
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+    About this Project
+  </span>
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+  
+    <li class="md-nav__item">
+      <a href="../../introduction/about-owasp/" class="md-nav__link">
+        
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+    About OWASP
+  </span>
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+    </li>
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+
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+  
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+    <li class="md-nav__item">
+      <a href="../../introduction/contributing/" class="md-nav__link">
+        
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+  <span class="md-ellipsis">
+    How to contribute?
+  </span>
+  
+
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+    </li>
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+
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+  
+    <li class="md-nav__item">
+      <a href="../../introduction/related-owasp-projects/" class="md-nav__link">
+        
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+  <span class="md-ellipsis">
+    Related OWASP Projects
+  </span>
+  
+
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+    </li>
+  
+
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+          </ul>
+        </nav>
+      
+    </li>
+  
+
+              
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+        
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+    <li class="md-nav__item md-nav__item--nested">
+      
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+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_2" >
+        
+          
+          <label class="md-nav__link" for="__nav_1_2" id="__nav_1_2_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    About the Top 10
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_2">
+            <span class="md-nav__icon md-icon"></span>
+            About the Top 10
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../about-top-10/in-the-news/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    In the News
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../about-top-10/contributors/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Our Contributors
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../about-top-10/old-versions-and-translations/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Old Versions and Translations
+  </span>
+  
+
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+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+              
+            
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+    
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+      
+      
+        
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+    
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_3" >
+        
+          
+          <label class="md-nav__link" for="__nav_1_3" id="__nav_1_3_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    The Top 10 List
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_3_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_3">
+            <span class="md-nav__icon md-icon"></span>
+            The Top 10 List
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../the-top-10/introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../the-top-10/c1-accesscontrol/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Implement Access Control
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../the-top-10/c2-crypto/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Use Cryptography the proper way
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../the-top-10/c3-validate-input-and-handle-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Validate all Input & Handle Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../the-top-10/c4-secure-architecture/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Address Security from the Start
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../the-top-10/c5-secure-by-default/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Secure By Default Configurations
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../the-top-10/c6-use-secure-dependencies/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Keep your Components Secure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../the-top-10/c7-implement-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../the-top-10/c8-help-the-browser-defend-the-user/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Leverage Browser Security Features
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../the-top-10/c9-security-logging-and-monitoring/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../the-top-10/c10-stop-server-side-request-forgery/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Stop Server Side Request Forgery
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    
+    
+    
+      
+      
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" >
+        
+          
+          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    Top 10 2018
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_2">
+            <span class="md-nav__icon md-icon"></span>
+            Top 10 2018
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../2018/0x01-about-owasp/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About OWASP
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../2018/0x02-about-project/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Project
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../2018/0x03-about-structure/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Structure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../2018/0x04-introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../2018/c1-security-requirements/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../2018/c2-leverage-security-frameworks-libraries/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../2018/c3-secure-database/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../2018/c4-encode-escape-data/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../2018/c5-validate-inputs/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../2018/c6-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../2018/c7-enforce-access-controls/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../2018/c8-protect-data-everywhere/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Protect Data Everywhere
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../2018/c9-security-logging/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../2018/c10-errors-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Handle All Errors and Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../2018/final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../2016/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2016
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+<h1 id="owasp-top-10-proactive-controls-v12014">OWASP Top 10 Proactive Controls v1/2014</h1>
+<ul>
+<li>OWASP-2014-C1: Parameterize Queries</li>
+<li>OWASP-2014-C2: Encode Data</li>
+<li>OWASP-2014-C3: Validate All Inputs</li>
+<li>OWASP-2014-C4: Implement Appropriate Access Controls</li>
+<li>OWASP-2014-C5: Establish Identity and Authentication Controls</li>
+<li>OWASP-2014-C6: Protect Data and Privacy</li>
+<li>OWASP-2014-C7: Implement Logging, Error Handling and Intrusion Detection</li>
+<li>OWASP-2014-C8: Leverage Security Features of Frameworks and Security Libraries</li>
+<li>OWASP-2014-C9: Include Security-Specific Requirements</li>
+<li>OWASP-2014-C10: Design and Architect Security In</li>
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+  </span>
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+          </label>
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+      <a href="../.." class="md-nav__link">
+        
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+    About this Project
+  </span>
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+    <li class="md-nav__item">
+      <a href="../../introduction/about-owasp/" class="md-nav__link">
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+  </span>
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+    How to contribute?
+  </span>
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+  
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+  
+    <li class="md-nav__item">
+      <a href="../../introduction/related-owasp-projects/" class="md-nav__link">
+        
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+    Related OWASP Projects
+  </span>
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+            
+  
+  <span class="md-ellipsis">
+    About the Top 10
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_2">
+            <span class="md-nav__icon md-icon"></span>
+            About the Top 10
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../about-top-10/in-the-news/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    In the News
+  </span>
+  
+
+      </a>
+    </li>
+  
+
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+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../about-top-10/contributors/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Our Contributors
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../about-top-10/old-versions-and-translations/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Old Versions and Translations
+  </span>
+  
+
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+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
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+    <li class="md-nav__item md-nav__item--nested">
+      
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+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_3" >
+        
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+          <label class="md-nav__link" for="__nav_1_3" id="__nav_1_3_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    The Top 10 List
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_3_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_3">
+            <span class="md-nav__icon md-icon"></span>
+            The Top 10 List
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../the-top-10/introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../the-top-10/c1-accesscontrol/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Implement Access Control
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../the-top-10/c2-crypto/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Use Cryptography the proper way
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../the-top-10/c3-validate-input-and-handle-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Validate all Input & Handle Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../the-top-10/c4-secure-architecture/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Address Security from the Start
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../the-top-10/c5-secure-by-default/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Secure By Default Configurations
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../the-top-10/c6-use-secure-dependencies/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Keep your Components Secure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../the-top-10/c7-implement-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../the-top-10/c8-help-the-browser-defend-the-user/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Leverage Browser Security Features
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../the-top-10/c9-security-logging-and-monitoring/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../the-top-10/c10-stop-server-side-request-forgery/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Stop Server Side Request Forgery
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
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+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
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+  
+
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+      
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+        
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+          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="0">
+            
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+  <span class="md-ellipsis">
+    Top 10 2018
+  </span>
+  
+
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+          </label>
+        
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+            <span class="md-nav__icon md-icon"></span>
+            Top 10 2018
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
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+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../2018/0x01-about-owasp/" class="md-nav__link">
+        
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+  <span class="md-ellipsis">
+    About OWASP
+  </span>
+  
+
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+  
+
+              
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+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../2018/0x02-about-project/" class="md-nav__link">
+        
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+  <span class="md-ellipsis">
+    About Project
+  </span>
+  
+
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+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../2018/0x03-about-structure/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Structure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../2018/0x04-introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../2018/c1-security-requirements/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../2018/c2-leverage-security-frameworks-libraries/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../2018/c3-secure-database/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../2018/c4-encode-escape-data/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../2018/c5-validate-inputs/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../2018/c6-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../2018/c7-enforce-access-controls/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../2018/c8-protect-data-everywhere/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Protect Data Everywhere
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../2018/c9-security-logging/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../2018/c10-errors-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Handle All Errors and Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../2018/final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+    
+  
+  
+  
+    <li class="md-nav__item md-nav__item--active">
+      
+      <input class="md-nav__toggle md-toggle" type="checkbox" id="__toc">
+      
+      
+        
+      
+      
+      <a href="./" class="md-nav__link md-nav__link--active">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2016
+  </span>
+  
+
+      </a>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../2014/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2014
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+  </ul>
+</nav>
+                  </div>
+                </div>
+              </div>
+            
+            
+              
+              <div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" >
+                <div class="md-sidebar__scrollwrap">
+                  <div class="md-sidebar__inner">
+                    
+
+<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
+  
+  
+  
+    
+  
+  
+</nav>
+                  </div>
+                </div>
+              </div>
+            
+          
+          
+            <div class="md-content" data-md-component="content">
+              <article class="md-content__inner md-typeset">
+                
+                  
+
+  
+  
+
+
+<h1 id="owasp-top-10-proactive-controls-v2-2016">OWASP Top 10 Proactive Controls v2 (2016)</h1>
+<ul>
+<li>OWASP-2016-C1: Verify for Security Early and Often</li>
+<li>OWASP-2016-C2: Parameterize Queries</li>
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+  
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+          </label>
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+            Introduction
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+          <ul class="md-nav__list" data-md-scrollfix>
+            
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+  
+  
+  
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+    <li class="md-nav__item">
+      <a href="../../.." class="md-nav__link">
+        
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+    About this Project
+  </span>
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+    </li>
+  
+
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+            
+              
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+  
+  
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+  
+    <li class="md-nav__item">
+      <a href="../../../introduction/about-owasp/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About OWASP
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../introduction/contributing/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    How to contribute?
+  </span>
+  
+
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+    </li>
+  
+
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+            
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+  
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+    <li class="md-nav__item">
+      <a href="../../../introduction/related-owasp-projects/" class="md-nav__link">
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+    Related OWASP Projects
+  </span>
+  
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+      
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+            
+  
+  <span class="md-ellipsis">
+    About the Top 10
+  </span>
+  
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+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_2">
+            <span class="md-nav__icon md-icon"></span>
+            About the Top 10
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../about-top-10/in-the-news/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    In the News
+  </span>
+  
+
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+    </li>
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+
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+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../about-top-10/contributors/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Our Contributors
+  </span>
+  
+
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+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../about-top-10/old-versions-and-translations/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Old Versions and Translations
+  </span>
+  
+
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+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
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+    <li class="md-nav__item md-nav__item--nested">
+      
+        
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+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_3" >
+        
+          
+          <label class="md-nav__link" for="__nav_1_3" id="__nav_1_3_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    The Top 10 List
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_3_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_3">
+            <span class="md-nav__icon md-icon"></span>
+            The Top 10 List
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c1-accesscontrol/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Implement Access Control
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c2-crypto/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Use Cryptography the proper way
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c3-validate-input-and-handle-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Validate all Input & Handle Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c4-secure-architecture/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Address Security from the Start
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c5-secure-by-default/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Secure By Default Configurations
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c6-use-secure-dependencies/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Keep your Components Secure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c7-implement-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c8-help-the-browser-defend-the-user/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Leverage Browser Security Features
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c9-security-logging-and-monitoring/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c10-stop-server-side-request-forgery/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Stop Server Side Request Forgery
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
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+      
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+  
+  
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+      
+        
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+      
+      
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
+      
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+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" checked>
+        
+          
+          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="">
+            
+  
+  <span class="md-ellipsis">
+    Top 10 2018
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="true">
+          <label class="md-nav__title" for="__nav_2">
+            <span class="md-nav__icon md-icon"></span>
+            Top 10 2018
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
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+  
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+    
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+  
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+    <li class="md-nav__item md-nav__item--active">
+      
+      <input class="md-nav__toggle md-toggle" type="checkbox" id="__toc">
+      
+      
+        
+      
+      
+      <a href="./" class="md-nav__link md-nav__link--active">
+        
+  
+  <span class="md-ellipsis">
+    About OWASP
+  </span>
+  
+
+      </a>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x02-about-project/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Project
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x03-about-structure/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Structure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x04-introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c1-security-requirements/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c2-leverage-security-frameworks-libraries/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c3-secure-database/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c4-encode-escape-data/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c5-validate-inputs/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c6-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c7-enforce-access-controls/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c8-protect-data-everywhere/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Protect Data Everywhere
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c9-security-logging/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c10-errors-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Handle All Errors and Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../2016/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2016
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../2014/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2014
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+  </ul>
+</nav>
+                  </div>
+                </div>
+              </div>
+            
+            
+              
+              <div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" >
+                <div class="md-sidebar__scrollwrap">
+                  <div class="md-sidebar__inner">
+                    
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+<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
+  
+  
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+  
+  
+</nav>
+                  </div>
+                </div>
+              </div>
+            
+          
+          
+            <div class="md-content" data-md-component="content">
+              <article class="md-content__inner md-typeset">
+                
+                  
+
+  
+  
+
+
+<h1 id="about-owasp">About OWASP</h1>
+<p>The <em>Open Web Application Security Project</em> (OWASP) is a 501c3 non for profit educational charity dedicated to enabling organizations to design, develop, acquire, operate, and maintain secure software. All OWASP tools, documents, forums, and chapters are free and open to anyone interested in improving application security. We can be found at <a href="https://www.owasp.org">www.owasp.org</a>.</p>
+<p>OWASP is a new kind of organization. Our freedom from commercial pressures allows us to provide unbiased, practical, cost effective information about application security.</p>
+<p>OWASP is not affiliated with any technology company. Similar to many open source software projects, OWASP produces many types of materials in a collaborative and open way. The OWASP Foundation is a not-for-profit entity that ensures the project's long-term success.</p>
+
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+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_1_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_1">
+            <span class="md-nav__icon md-icon"></span>
+            Introduction
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../.." class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About this Project
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../introduction/about-owasp/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About OWASP
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../introduction/contributing/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    How to contribute?
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../introduction/related-owasp-projects/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Related OWASP Projects
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    
+    
+    
+      
+      
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_2" >
+        
+          
+          <label class="md-nav__link" for="__nav_1_2" id="__nav_1_2_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    About the Top 10
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_2">
+            <span class="md-nav__icon md-icon"></span>
+            About the Top 10
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../about-top-10/in-the-news/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    In the News
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../about-top-10/contributors/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Our Contributors
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../about-top-10/old-versions-and-translations/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Old Versions and Translations
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    
+    
+    
+      
+      
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_3" >
+        
+          
+          <label class="md-nav__link" for="__nav_1_3" id="__nav_1_3_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    The Top 10 List
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_3_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_3">
+            <span class="md-nav__icon md-icon"></span>
+            The Top 10 List
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c1-accesscontrol/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Implement Access Control
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c2-crypto/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Use Cryptography the proper way
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c3-validate-input-and-handle-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Validate all Input & Handle Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c4-secure-architecture/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Address Security from the Start
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c5-secure-by-default/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Secure By Default Configurations
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c6-use-secure-dependencies/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Keep your Components Secure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c7-implement-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c8-help-the-browser-defend-the-user/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Leverage Browser Security Features
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c9-security-logging-and-monitoring/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c10-stop-server-side-request-forgery/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Stop Server Side Request Forgery
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+    
+  
+  
+  
+    
+    
+    
+      
+        
+        
+      
+      
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" checked>
+        
+          
+          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="">
+            
+  
+  <span class="md-ellipsis">
+    Top 10 2018
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="true">
+          <label class="md-nav__title" for="__nav_2">
+            <span class="md-nav__icon md-icon"></span>
+            Top 10 2018
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x01-about-owasp/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About OWASP
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+    
+  
+  
+  
+    <li class="md-nav__item md-nav__item--active">
+      
+      <input class="md-nav__toggle md-toggle" type="checkbox" id="__toc">
+      
+      
+        
+      
+      
+        <label class="md-nav__link md-nav__link--active" for="__toc">
+          
+  
+  <span class="md-ellipsis">
+    About Project
+  </span>
+  
+
+          <span class="md-nav__icon md-icon"></span>
+        </label>
+      
+      <a href="./" class="md-nav__link md-nav__link--active">
+        
+  
+  <span class="md-ellipsis">
+    About Project
+  </span>
+  
+
+      </a>
+      
+        
+
+<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
+  
+  
+  
+    
+  
+  
+    <label class="md-nav__title" for="__toc">
+      <span class="md-nav__icon md-icon"></span>
+      Table of contents
+    </label>
+    <ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
+      
+        <li class="md-nav__item">
+  <a href="#aim-objective" class="md-nav__link">
+    <span class="md-ellipsis">
+      Aim &amp; Objective
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#call-to-action" class="md-nav__link">
+    <span class="md-ellipsis">
+      Call to Action
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#copyright-and-licence" class="md-nav__link">
+    <span class="md-ellipsis">
+      Copyright and Licence
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#project-leaders" class="md-nav__link">
+    <span class="md-ellipsis">
+      Project Leaders
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#contributors" class="md-nav__link">
+    <span class="md-ellipsis">
+      Contributors
+    </span>
+  </a>
+  
+</li>
+      
+    </ul>
+  
+</nav>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x03-about-structure/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Structure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x04-introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c1-security-requirements/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c2-leverage-security-frameworks-libraries/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c3-secure-database/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c4-encode-escape-data/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c5-validate-inputs/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c6-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c7-enforce-access-controls/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c8-protect-data-everywhere/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Protect Data Everywhere
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c9-security-logging/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c10-errors-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Handle All Errors and Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../2016/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2016
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../2014/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2014
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+  </ul>
+</nav>
+                  </div>
+                </div>
+              </div>
+            
+            
+              
+              <div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" >
+                <div class="md-sidebar__scrollwrap">
+                  <div class="md-sidebar__inner">
+                    
+
+<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
+  
+  
+  
+    
+  
+  
+    <label class="md-nav__title" for="__toc">
+      <span class="md-nav__icon md-icon"></span>
+      Table of contents
+    </label>
+    <ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
+      
+        <li class="md-nav__item">
+  <a href="#aim-objective" class="md-nav__link">
+    <span class="md-ellipsis">
+      Aim &amp; Objective
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#call-to-action" class="md-nav__link">
+    <span class="md-ellipsis">
+      Call to Action
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#copyright-and-licence" class="md-nav__link">
+    <span class="md-ellipsis">
+      Copyright and Licence
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#project-leaders" class="md-nav__link">
+    <span class="md-ellipsis">
+      Project Leaders
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#contributors" class="md-nav__link">
+    <span class="md-ellipsis">
+      Contributors
+    </span>
+  </a>
+  
+</li>
+      
+    </ul>
+  
+</nav>
+                  </div>
+                </div>
+              </div>
+            
+          
+          
+            <div class="md-content" data-md-component="content">
+              <article class="md-content__inner md-typeset">
+                
+                  
+
+  
+  
+
+
+<h1 id="about-this-project">About this Project</h1>
+<p>Insecure software is undermining our financial, healthcare, defense, energy, and other critical infrastructure worldwide. As our digital, global infrastructure gets increasingly complex and interconnected, the difficulty of achieving application security increases exponentially. We can no longer afford to tolerate relatively simple security problems.</p>
+<h2 id="aim-objective">Aim &amp; Objective</h2>
+<p>The goal of the <strong>OWASP Top 10 Proactive Controls project</strong> (OPC) is to raise awareness about application security by describing the most important areas of concern that software developers must be aware of. We encourage you to use the OWASP Proactive Controls to get your developers started with application security. Developers can learn from the mistakes of other organizations. We hope that the OWASP Proactive Controls is useful to your efforts in building secure software.</p>
+<h2 id="call-to-action">Call to Action</h2>
+<p>Please don’t hesitate to contact the OWASP Proactive Control project with your questions, comments, and ideas, either publicly to our email list or privately to jim@owasp.org, mailto:jim@owasp.org.</p>
+<h2 id="copyright-and-licence">Copyright and Licence</h2>
+<p>This document is released under the Creative Commons Attribution ShareAlike 3.0 license. For any reuse or distribution, you must make it clear to others the license terms of this work.</p>
+<h2 id="project-leaders">Project Leaders</h2>
+<ul>
+<li>Katy Anton </li>
+<li>Jim Bird </li>
+<li>Jim Manico </li>
+</ul>
+<h2 id="contributors">Contributors</h2>
+<ul>
+<li>Chris Romeo  &nbsp; | Dan Anderson  &nbsp; |  David Cybuck </li>
+<li>Dave Ferguson | Josh Grossman | Osama Elnaggar</li>
+<li>Colin Watson &nbsp; | Rick Mitchell &nbsp; |  And many more…  </li>
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+  </div>
+  <div class="md-source__repository">
+    GitHub
+  </div>
+</a>
+    </div>
+  
+  <ul class="md-nav__list" data-md-scrollfix>
+    
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+      
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+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1" >
+        
+          
+          <label class="md-nav__link" for="__nav_1" id="__nav_1_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    Current Top 10 (WIP, 2024)
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1">
+            <span class="md-nav__icon md-icon"></span>
+            Current Top 10 (WIP, 2024)
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    
+    
+    
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+      
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+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+        
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+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_1" >
+        
+          
+          <label class="md-nav__link" for="__nav_1_1" id="__nav_1_1_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_1_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_1">
+            <span class="md-nav__icon md-icon"></span>
+            Introduction
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../.." class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About this Project
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../introduction/about-owasp/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About OWASP
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../introduction/contributing/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    How to contribute?
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../introduction/related-owasp-projects/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Related OWASP Projects
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    
+    
+    
+      
+      
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_2" >
+        
+          
+          <label class="md-nav__link" for="__nav_1_2" id="__nav_1_2_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    About the Top 10
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_2">
+            <span class="md-nav__icon md-icon"></span>
+            About the Top 10
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../about-top-10/in-the-news/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    In the News
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../about-top-10/contributors/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Our Contributors
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../about-top-10/old-versions-and-translations/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Old Versions and Translations
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    
+    
+    
+      
+      
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_3" >
+        
+          
+          <label class="md-nav__link" for="__nav_1_3" id="__nav_1_3_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    The Top 10 List
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_3_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_3">
+            <span class="md-nav__icon md-icon"></span>
+            The Top 10 List
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c1-accesscontrol/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Implement Access Control
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c2-crypto/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Use Cryptography the proper way
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c3-validate-input-and-handle-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Validate all Input & Handle Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c4-secure-architecture/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Address Security from the Start
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c5-secure-by-default/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Secure By Default Configurations
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c6-use-secure-dependencies/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Keep your Components Secure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c7-implement-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c8-help-the-browser-defend-the-user/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Leverage Browser Security Features
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c9-security-logging-and-monitoring/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c10-stop-server-side-request-forgery/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Stop Server Side Request Forgery
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+    
+  
+  
+  
+    
+    
+    
+      
+        
+        
+      
+      
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" checked>
+        
+          
+          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="">
+            
+  
+  <span class="md-ellipsis">
+    Top 10 2018
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="true">
+          <label class="md-nav__title" for="__nav_2">
+            <span class="md-nav__icon md-icon"></span>
+            Top 10 2018
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x01-about-owasp/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About OWASP
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x02-about-project/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Project
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+    
+  
+  
+  
+    <li class="md-nav__item md-nav__item--active">
+      
+      <input class="md-nav__toggle md-toggle" type="checkbox" id="__toc">
+      
+      
+        
+      
+      
+        <label class="md-nav__link md-nav__link--active" for="__toc">
+          
+  
+  <span class="md-ellipsis">
+    About Structure
+  </span>
+  
+
+          <span class="md-nav__icon md-icon"></span>
+        </label>
+      
+      <a href="./" class="md-nav__link md-nav__link--active">
+        
+  
+  <span class="md-ellipsis">
+    About Structure
+  </span>
+  
+
+      </a>
+      
+        
+
+<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
+  
+  
+  
+    
+  
+  
+    <label class="md-nav__title" for="__toc">
+      <span class="md-nav__icon md-icon"></span>
+      Table of contents
+    </label>
+    <ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
+      
+        <li class="md-nav__item">
+  <a href="#cx-control-name" class="md-nav__link">
+    <span class="md-ellipsis">
+      Cx: Control Name
+    </span>
+  </a>
+  
+    <nav class="md-nav" aria-label="Cx: Control Name">
+      <ul class="md-nav__list">
+        
+          <li class="md-nav__item">
+  <a href="#description" class="md-nav__link">
+    <span class="md-ellipsis">
+      Description
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#implementation" class="md-nav__link">
+    <span class="md-ellipsis">
+      Implementation
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#vulnerabilities-prevented" class="md-nav__link">
+    <span class="md-ellipsis">
+      Vulnerabilities Prevented
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#references" class="md-nav__link">
+    <span class="md-ellipsis">
+      References
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#tools" class="md-nav__link">
+    <span class="md-ellipsis">
+      Tools
+    </span>
+  </a>
+  
+</li>
+        
+      </ul>
+    </nav>
+  
+</li>
+      
+    </ul>
+  
+</nav>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x04-introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c1-security-requirements/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c2-leverage-security-frameworks-libraries/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c3-secure-database/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c4-encode-escape-data/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c5-validate-inputs/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c6-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c7-enforce-access-controls/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c8-protect-data-everywhere/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Protect Data Everywhere
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c9-security-logging/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c10-errors-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Handle All Errors and Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../2016/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2016
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+
+      </a>
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+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../2014/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2014
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+  </ul>
+</nav>
+                  </div>
+                </div>
+              </div>
+            
+            
+              
+              <div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" >
+                <div class="md-sidebar__scrollwrap">
+                  <div class="md-sidebar__inner">
+                    
+
+<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
+  
+  
+  
+    
+  
+  
+    <label class="md-nav__title" for="__toc">
+      <span class="md-nav__icon md-icon"></span>
+      Table of contents
+    </label>
+    <ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
+      
+        <li class="md-nav__item">
+  <a href="#cx-control-name" class="md-nav__link">
+    <span class="md-ellipsis">
+      Cx: Control Name
+    </span>
+  </a>
+  
+    <nav class="md-nav" aria-label="Cx: Control Name">
+      <ul class="md-nav__list">
+        
+          <li class="md-nav__item">
+  <a href="#description" class="md-nav__link">
+    <span class="md-ellipsis">
+      Description
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#implementation" class="md-nav__link">
+    <span class="md-ellipsis">
+      Implementation
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#vulnerabilities-prevented" class="md-nav__link">
+    <span class="md-ellipsis">
+      Vulnerabilities Prevented
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#references" class="md-nav__link">
+    <span class="md-ellipsis">
+      References
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#tools" class="md-nav__link">
+    <span class="md-ellipsis">
+      Tools
+    </span>
+  </a>
+  
+</li>
+        
+      </ul>
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+  
+</li>
+      
+    </ul>
+  
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+            <div class="md-content" data-md-component="content">
+              <article class="md-content__inner md-typeset">
+                
+                  
+
+  
+  
+
+
+<h1 id="document-structure">Document Structure</h1>
+<p>This document is structured as a list of security controls. Each control is described as follows:</p>
+<h2 id="cx-control-name">Cx: Control Name</h2>
+<h3 id="description">Description</h3>
+<p>A detailed description of the control including some best practices to consider.</p>
+<h3 id="implementation">Implementation</h3>
+<p>Implementation best practices  and examples to illustrate how to implement each control.</p>
+<h3 id="vulnerabilities-prevented">Vulnerabilities Prevented</h3>
+<p>List of prevented vulnerabilities or risks addressed (OWASP TOP 10 Risk, CWE, etc.)</p>
+<h3 id="references">References</h3>
+<p>List of references for further study (OWASP Cheat sheet, Security Hardening Guidelines, etc.)</p>
+<h3 id="tools">Tools</h3>
+<p>Set of tools/projects to easily introduce/integrate security controls into your software.</p>
+
+
+
+
+
+
+
+  
+  
+
+
+
+  
+
+
+
+
+                
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+        <a href="../0x01-about-owasp/" class="md-tabs__link">
+          
+  
+  Top 10 2018
+
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+      </li>
+    
+  
+
+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="../../2016/" class="md-tabs__link">
+        
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+  Top 10 2016
+
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+    </li>
+  
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+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="../../2014/" class="md-tabs__link">
+        
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+  
+  Top 10 2014
+
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+    </li>
+  
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+</nav>
+          
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+
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+      <a href="https://github.com/OWASP/www-project-proactive-controls/" title="Go to repository" class="md-source" data-md-component="source">
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+  
+  <span class="md-ellipsis">
+    Current Top 10 (WIP, 2024)
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1">
+            <span class="md-nav__icon md-icon"></span>
+            Current Top 10 (WIP, 2024)
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
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+      
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+        
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+          <label class="md-nav__link" for="__nav_1_1" id="__nav_1_1_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_1_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_1">
+            <span class="md-nav__icon md-icon"></span>
+            Introduction
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../.." class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About this Project
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../introduction/about-owasp/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About OWASP
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../introduction/contributing/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    How to contribute?
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../introduction/related-owasp-projects/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Related OWASP Projects
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    
+    
+    
+      
+      
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_2" >
+        
+          
+          <label class="md-nav__link" for="__nav_1_2" id="__nav_1_2_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    About the Top 10
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_2">
+            <span class="md-nav__icon md-icon"></span>
+            About the Top 10
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../about-top-10/in-the-news/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    In the News
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../about-top-10/contributors/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Our Contributors
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../about-top-10/old-versions-and-translations/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Old Versions and Translations
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    
+    
+    
+      
+      
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_3" >
+        
+          
+          <label class="md-nav__link" for="__nav_1_3" id="__nav_1_3_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    The Top 10 List
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_3_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_3">
+            <span class="md-nav__icon md-icon"></span>
+            The Top 10 List
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c1-accesscontrol/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Implement Access Control
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c2-crypto/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Use Cryptography the proper way
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c3-validate-input-and-handle-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Validate all Input & Handle Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c4-secure-architecture/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Address Security from the Start
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c5-secure-by-default/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Secure By Default Configurations
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c6-use-secure-dependencies/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Keep your Components Secure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c7-implement-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c8-help-the-browser-defend-the-user/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Leverage Browser Security Features
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c9-security-logging-and-monitoring/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c10-stop-server-side-request-forgery/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Stop Server Side Request Forgery
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+    
+  
+  
+  
+    
+    
+    
+      
+        
+        
+      
+      
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" checked>
+        
+          
+          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="">
+            
+  
+  <span class="md-ellipsis">
+    Top 10 2018
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="true">
+          <label class="md-nav__title" for="__nav_2">
+            <span class="md-nav__icon md-icon"></span>
+            Top 10 2018
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x01-about-owasp/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About OWASP
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x02-about-project/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Project
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x03-about-structure/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Structure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+    
+  
+  
+  
+    <li class="md-nav__item md-nav__item--active">
+      
+      <input class="md-nav__toggle md-toggle" type="checkbox" id="__toc">
+      
+      
+        
+      
+      
+        <label class="md-nav__link md-nav__link--active" for="__toc">
+          
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+          <span class="md-nav__icon md-icon"></span>
+        </label>
+      
+      <a href="./" class="md-nav__link md-nav__link--active">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+      
+        
+
+<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
+  
+  
+  
+    
+  
+  
+    <label class="md-nav__title" for="__toc">
+      <span class="md-nav__icon md-icon"></span>
+      Table of contents
+    </label>
+    <ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
+      
+        <li class="md-nav__item">
+  <a href="#the-top-10-proactive-controls" class="md-nav__link">
+    <span class="md-ellipsis">
+      The Top 10 Proactive Controls
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#how-this-list-was-created" class="md-nav__link">
+    <span class="md-ellipsis">
+      How this List Was Created
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#target-audience" class="md-nav__link">
+    <span class="md-ellipsis">
+      Target Audience
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#how-to-use-this-document" class="md-nav__link">
+    <span class="md-ellipsis">
+      How to Use this Document
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#link-to-the-owasp-top-10-project" class="md-nav__link">
+    <span class="md-ellipsis">
+      Link to the OWASP Top 10 Project
+    </span>
+  </a>
+  
+</li>
+      
+    </ul>
+  
+</nav>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c1-security-requirements/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c2-leverage-security-frameworks-libraries/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c3-secure-database/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c4-encode-escape-data/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c5-validate-inputs/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c6-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c7-enforce-access-controls/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
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+  </span>
+  
+
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+
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+  
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+      <a href="../c8-protect-data-everywhere/" class="md-nav__link">
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+  
+  
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+  
+    <li class="md-nav__item">
+      <a href="../c9-security-logging/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c10-errors-exceptions/" class="md-nav__link">
+        
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+  </span>
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+
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+  
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+      <a href="../final-word/" class="md-nav__link">
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+
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+      
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+  
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+      <a href="../../2016/" class="md-nav__link">
+        
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+    Top 10 2016
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+    
+      
+      
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+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../2014/" class="md-nav__link">
+        
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+  <span class="md-ellipsis">
+    Top 10 2014
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+
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+    </li>
+  
+
+    
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+</nav>
+                  </div>
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+            
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+              <div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" >
+                <div class="md-sidebar__scrollwrap">
+                  <div class="md-sidebar__inner">
+                    
+
+<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
+  
+  
+  
+    
+  
+  
+    <label class="md-nav__title" for="__toc">
+      <span class="md-nav__icon md-icon"></span>
+      Table of contents
+    </label>
+    <ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
+      
+        <li class="md-nav__item">
+  <a href="#the-top-10-proactive-controls" class="md-nav__link">
+    <span class="md-ellipsis">
+      The Top 10 Proactive Controls
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#how-this-list-was-created" class="md-nav__link">
+    <span class="md-ellipsis">
+      How this List Was Created
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+  <a href="#target-audience" class="md-nav__link">
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+      Target Audience
+    </span>
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+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#how-to-use-this-document" class="md-nav__link">
+    <span class="md-ellipsis">
+      How to Use this Document
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#link-to-the-owasp-top-10-project" class="md-nav__link">
+    <span class="md-ellipsis">
+      Link to the OWASP Top 10 Project
+    </span>
+  </a>
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+</li>
+      
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+  
+</nav>
+                  </div>
+                </div>
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+            
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+          
+            <div class="md-content" data-md-component="content">
+              <article class="md-content__inner md-typeset">
+                
+                  
+
+  
+  
+
+
+<h1 id="introduction">Introduction</h1>
+<p>The OWASP Top Ten Proactive Controls 2018 is a list of security techniques that should be considered for every software development project. This document is written for developers to assist those new to secure development.</p>
+<p>One of the main goals of this document is to provide concrete practical guidance that helps developers build secure software. These techniques should be applied proactively at the early stages of software development to ensure maximum effectiveness.</p>
+<h2 id="the-top-10-proactive-controls">The Top 10 Proactive Controls</h2>
+<p>The list is ordered by importance with list item number 1 being the most important:</p>
+<ul>
+<li>OWASP-2018-C1: Define Security Requirements</li>
+<li>OWASP-2018-C2: Leverage Security Frameworks and Libraries</li>
+<li>OWASP-2018-C3: Secure Database Access</li>
+<li>OWASP-2018-C4: Encode and Escape Data</li>
+<li>OWASP-2018-C5: Validate All Inputs</li>
+<li>OWASP-2018-C6: Implement Digital Identity</li>
+<li>OWASP-2018-C7: Enforce Access Controls</li>
+<li>OWASP-2018-C8: Protect Data Everywhere</li>
+<li>OWASP-2018-C9: Implement Security Logging and Monitoring</li>
+<li>OWASP-2018-C10: Handle All Errors and Exceptions</li>
+</ul>
+<h2 id="how-this-list-was-created">How this List Was Created</h2>
+<p>This list was originally created by the current project leads with contributions from several volunteers. The document was then shared globally so even anonymous suggestions could be considered. Hundreds of changes were accepted from this open community process.</p>
+<h2 id="target-audience">Target Audience</h2>
+<p>This document is primarily written for developers. However, development managers, product owners, Q/A professionals, program managers, and anyone involved in building software can also benefit from this document. </p>
+<h2 id="how-to-use-this-document">How to Use this Document</h2>
+<p>This document is intended to provide initial awareness around building secure software. This document will also provide a good foundation of topics to help drive introductory software security developer training. These controls should be used consistently and thoroughly throughout all applications. However, this document should be seen as a starting point rather than a comprehensive set of techniques and practices. A full secure development process should include comprehensive requirements from a standard such as the OWASP ASVS in addition to including a range of software development activities described in maturity models such as <a href="https://www.owasp.org/index.php/OWASP_SAMM_Project">OWASP SAMM</a> and <a href="https://www.bsimm.com/">BSIMM</a>.</p>
+<h2 id="link-to-the-owasp-top-10-project">Link to the OWASP Top 10 Project</h2>
+<p>The OWASP Top 10 Proactive Controls is similar to the <a href="https://www.owasp.org/index.php/Category:OWASP_Top_Ten_Project">OWASP Top 10</a> but is focused on defensive techniques and controls as opposed to risks. Each technique or control in this document will map to one or more items in the <em>risk based</em> OWASP Top 10. This mapping information is included at the end of each control description.</p>
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+    <li class="md-nav__item">
+      <a href="../../../introduction/about-owasp/" class="md-nav__link">
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+    About OWASP
+  </span>
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+      <a href="../../../introduction/contributing/" class="md-nav__link">
+        
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+    How to contribute?
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+      <a href="../../../introduction/related-owasp-projects/" class="md-nav__link">
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+  </span>
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+      
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+      <a href="../../../about-top-10/in-the-news/" class="md-nav__link">
+        
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+    In the News
+  </span>
+  
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+    <li class="md-nav__item">
+      <a href="../../../about-top-10/contributors/" class="md-nav__link">
+        
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+  <span class="md-ellipsis">
+    Our Contributors
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+      <a href="../../../about-top-10/old-versions-and-translations/" class="md-nav__link">
+        
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+  <span class="md-ellipsis">
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+        
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+          <label class="md-nav__link" for="__nav_1_3" id="__nav_1_3_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    The Top 10 List
+  </span>
+  
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+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_3_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_3">
+            <span class="md-nav__icon md-icon"></span>
+            The Top 10 List
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c1-accesscontrol/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Implement Access Control
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c2-crypto/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Use Cryptography the proper way
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
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+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c3-validate-input-and-handle-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Validate all Input & Handle Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c4-secure-architecture/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Address Security from the Start
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c5-secure-by-default/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Secure By Default Configurations
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c6-use-secure-dependencies/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Keep your Components Secure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c7-implement-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c8-help-the-browser-defend-the-user/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Leverage Browser Security Features
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c9-security-logging-and-monitoring/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c10-stop-server-side-request-forgery/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Stop Server Side Request Forgery
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
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+            
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+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
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+    </li>
+  
+
+              
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+          </ul>
+        </nav>
+      
+    </li>
+  
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+    Top 10 2018
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+            Top 10 2018
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+    <li class="md-nav__item">
+      <a href="../0x01-about-owasp/" class="md-nav__link">
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+    About OWASP
+  </span>
+  
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+      <a href="../0x02-about-project/" class="md-nav__link">
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+    About Project
+  </span>
+  
+
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+  
+
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+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x03-about-structure/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Structure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x04-introduction/" class="md-nav__link">
+        
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+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
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+            
+              
+                
+  
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+    
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+  
+  
+    <li class="md-nav__item md-nav__item--active">
+      
+      <input class="md-nav__toggle md-toggle" type="checkbox" id="__toc">
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+        
+      
+      
+        <label class="md-nav__link md-nav__link--active" for="__toc">
+          
+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
+          <span class="md-nav__icon md-icon"></span>
+        </label>
+      
+      <a href="./" class="md-nav__link md-nav__link--active">
+        
+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
+      </a>
+      
+        
+
+<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
+  
+  
+  
+    
+  
+  
+    <label class="md-nav__title" for="__toc">
+      <span class="md-nav__icon md-icon"></span>
+      Table of contents
+    </label>
+    <ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
+      
+        <li class="md-nav__item">
+  <a href="#description" class="md-nav__link">
+    <span class="md-ellipsis">
+      Description
+    </span>
+  </a>
+  
+    <nav class="md-nav" aria-label="Description">
+      <ul class="md-nav__list">
+        
+          <li class="md-nav__item">
+  <a href="#the-owasp-asvs" class="md-nav__link">
+    <span class="md-ellipsis">
+      The OWASP ASVS
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#augmenting-requirements-with-user-stories-and-misuse-cases" class="md-nav__link">
+    <span class="md-ellipsis">
+      Augmenting Requirements with User Stories and Misuse Cases
+    </span>
+  </a>
+  
+</li>
+        
+      </ul>
+    </nav>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#implementation" class="md-nav__link">
+    <span class="md-ellipsis">
+      Implementation
+    </span>
+  </a>
+  
+    <nav class="md-nav" aria-label="Implementation">
+      <ul class="md-nav__list">
+        
+          <li class="md-nav__item">
+  <a href="#discovery-and-selection" class="md-nav__link">
+    <span class="md-ellipsis">
+      Discovery and Selection
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#investigation-and-documentation" class="md-nav__link">
+    <span class="md-ellipsis">
+      Investigation and Documentation
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#implementation_1" class="md-nav__link">
+    <span class="md-ellipsis">
+      Implementation
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#test" class="md-nav__link">
+    <span class="md-ellipsis">
+      Test
+    </span>
+  </a>
+  
+</li>
+        
+      </ul>
+    </nav>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#vulnerabilities-prevented" class="md-nav__link">
+    <span class="md-ellipsis">
+      Vulnerabilities Prevented
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#references" class="md-nav__link">
+    <span class="md-ellipsis">
+      References
+    </span>
+  </a>
+  
+</li>
+      
+    </ul>
+  
+</nav>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c2-leverage-security-frameworks-libraries/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c3-secure-database/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c4-encode-escape-data/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c5-validate-inputs/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c6-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c7-enforce-access-controls/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c8-protect-data-everywhere/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Protect Data Everywhere
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c9-security-logging/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c10-errors-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Handle All Errors and Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../2016/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2016
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../2014/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2014
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+  </ul>
+</nav>
+                  </div>
+                </div>
+              </div>
+            
+            
+              
+              <div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" >
+                <div class="md-sidebar__scrollwrap">
+                  <div class="md-sidebar__inner">
+                    
+
+<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
+  
+  
+  
+    
+  
+  
+    <label class="md-nav__title" for="__toc">
+      <span class="md-nav__icon md-icon"></span>
+      Table of contents
+    </label>
+    <ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
+      
+        <li class="md-nav__item">
+  <a href="#description" class="md-nav__link">
+    <span class="md-ellipsis">
+      Description
+    </span>
+  </a>
+  
+    <nav class="md-nav" aria-label="Description">
+      <ul class="md-nav__list">
+        
+          <li class="md-nav__item">
+  <a href="#the-owasp-asvs" class="md-nav__link">
+    <span class="md-ellipsis">
+      The OWASP ASVS
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#augmenting-requirements-with-user-stories-and-misuse-cases" class="md-nav__link">
+    <span class="md-ellipsis">
+      Augmenting Requirements with User Stories and Misuse Cases
+    </span>
+  </a>
+  
+</li>
+        
+      </ul>
+    </nav>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#implementation" class="md-nav__link">
+    <span class="md-ellipsis">
+      Implementation
+    </span>
+  </a>
+  
+    <nav class="md-nav" aria-label="Implementation">
+      <ul class="md-nav__list">
+        
+          <li class="md-nav__item">
+  <a href="#discovery-and-selection" class="md-nav__link">
+    <span class="md-ellipsis">
+      Discovery and Selection
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#investigation-and-documentation" class="md-nav__link">
+    <span class="md-ellipsis">
+      Investigation and Documentation
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#implementation_1" class="md-nav__link">
+    <span class="md-ellipsis">
+      Implementation
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#test" class="md-nav__link">
+    <span class="md-ellipsis">
+      Test
+    </span>
+  </a>
+  
+</li>
+        
+      </ul>
+    </nav>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#vulnerabilities-prevented" class="md-nav__link">
+    <span class="md-ellipsis">
+      Vulnerabilities Prevented
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#references" class="md-nav__link">
+    <span class="md-ellipsis">
+      References
+    </span>
+  </a>
+  
+</li>
+      
+    </ul>
+  
+</nav>
+                  </div>
+                </div>
+              </div>
+            
+          
+          
+            <div class="md-content" data-md-component="content">
+              <article class="md-content__inner md-typeset">
+                
+                  
+
+  
+  
+
+
+<h1 id="c1-define-security-requirements">C1: Define Security Requirements</h1>
+<h2 id="description">Description</h2>
+<p>A security requirement is a statement of needed security functionality that ensures one of many different security properties of software is being satisfied. Security requirements are derived from industry standards, applicable laws, and a history of past vulnerabilities. Security requirements define new features or additions to existing features to solve a specific security problem or eliminate a potential vulnerability.</p>
+<p>Security requirements provide a foundation of vetted security functionality for an application. Instead of creating a custom approach to security for every application, standard security requirements allow developers to reuse the definition of security controls and best practices. Those same vetted security requirements provide solutions for security issues that have occurred in the past. Requirements exist to prevent the repeat of past security failures.</p>
+<h3 id="the-owasp-asvs">The OWASP ASVS</h3>
+<p><a href="https://owasp.org/www-project-application-security-verification-standard/">The OWASP Application Security Verification Standard (ASVS)</a> is a catalog of available security requirements and verification criteria. OWASP ASVS  can be a source of detailed security requirements for development teams.</p>
+<p>Security requirements are categorized into different buckets based on a shared higher order security function. For example, the ASVS contains categories such as authentication, access control, error handling / logging, and web services. Each category contains a collection of requirements that represent the best practices for that category drafted as verifiable statements.</p>
+<h3 id="augmenting-requirements-with-user-stories-and-misuse-cases">Augmenting Requirements with User Stories and Misuse Cases</h3>
+<p>The ASVS requirements are basic verifiable statements which can be expanded upon with user stories and misuse cases. The advantage of a user story or misuse case is that it ties the application to exactly what the user or attacker does to the system, versus describing what the system offers to the user. </p>
+<p>Here is an example of expanding on an ASVS 3.0.1 requirement. From the "Authentication Verification Requirements" section of ASVS 3.0.1, requirement 2.19 focuses on default passwords.</p>
+<div class="language-text highlight"><pre><span></span><code>2.19 Verify there are no default passwords in use for the application framework 
+    or any components used by the application (such as &quot;admin/password&quot;).
+</code></pre></div>
+<p>This requirement contains both an action to verify that no default passwords exist, and also carries with it the guidance that no default passwords should be used within the application.</p>
+<p>A user story focuses on the perspective of the user, administrator, or attacker of the system, and describes functionality based on what a user wants the system to do for them. A user story takes the form of "As a user, I can do x, y, and z".</p>
+<div class="language-text highlight"><pre><span></span><code>As a user, I can enter my username and password to gain access to the application.
+As a user, I can enter a long password that has a maximum of 1023 characters.
+</code></pre></div>
+<p>When the story is focused on the attacker and their actions, it is referred to as a misuse case.</p>
+<div class="language-text highlight"><pre><span></span><code>As an attacker, I can enter in a default username and password to gain access.
+</code></pre></div>
+<p>This story contains the same message as the traditional requirement from ASVS, with additional user or attacker details to help make the requirement more testable.</p>
+<h2 id="implementation">Implementation</h2>
+<p>Successful use of security requirements involves four steps. The process includes discovering / selecting, documenting, implementing, and then confirming correct implementation of new security features and functionality within an application. </p>
+<h3 id="discovery-and-selection">Discovery and Selection</h3>
+<p>The process begins with discovery and selection of security requirements. In this phase, the developer is understanding security requirements from a standard source such as ASVS and choosing which requirements to include for a given release of an application. The point of discovery and selection is to choose a manageable number of security requirements for this release or sprint, and then continue to iterate for each sprint, adding more security functionality over time.</p>
+<h3 id="investigation-and-documentation">Investigation and Documentation</h3>
+<p>During investigation and documentation, the developer reviews the existing application against the new set of security requirements to determine whether the application currently meets the requirement or if some development is required. This investigation culminates in the documentation of the results of the review.</p>
+<h3 id="implementation_1">Implementation</h3>
+<p>After the need is determined for development, the developer must now modify the application in some way to add the new functionality or eliminate an insecure option. In this phase the developer first determines the design required to address the requirement, and then completes the code changes to meet the requirement.</p>
+<h3 id="test">Test</h3>
+<p>Test cases should be created to confirm the existence of the new functionality or disprove the existence of a previously insecure option.</p>
+<h2 id="vulnerabilities-prevented">Vulnerabilities Prevented</h2>
+<p>Security requirements define the security functionality of an application. Better security built in from the beginning of an applications life cycle results in the prevention of many types of vulnerabilities. </p>
+<h2 id="references">References</h2>
+<ul>
+<li><a href="https://owasp.org/www-project-application-security-verification-standard/">OWASP Application Security Verification Standard (ASVS)</a></li>
+<li><a href="https://owasp.org/www-project-mobile-security-testing-guide/">OWASP Mobile Application Security Verification Standard (MASVS)</a></li>
+<li><a href="https://owasp.org/www-project-top-ten/">OWASP Top Ten</a></li>
+</ul>
+
+
+
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+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c1-accesscontrol/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Implement Access Control
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c2-crypto/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Use Cryptography the proper way
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c3-validate-input-and-handle-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Validate all Input & Handle Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c4-secure-architecture/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Address Security from the Start
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c5-secure-by-default/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Secure By Default Configurations
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c6-use-secure-dependencies/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Keep your Components Secure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c7-implement-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c8-help-the-browser-defend-the-user/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Leverage Browser Security Features
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c9-security-logging-and-monitoring/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c10-stop-server-side-request-forgery/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Stop Server Side Request Forgery
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
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+      <a href="../../../final-word/" class="md-nav__link">
+        
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+  <span class="md-ellipsis">
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+    </li>
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+              
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+      
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+  
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+  
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+        
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+  <span class="md-ellipsis">
+    About Project
+  </span>
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+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x03-about-structure/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Structure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x04-introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c1-security-requirements/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c2-leverage-security-frameworks-libraries/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c3-secure-database/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c4-encode-escape-data/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c5-validate-inputs/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c6-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c7-enforce-access-controls/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c8-protect-data-everywhere/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Protect Data Everywhere
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c9-security-logging/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+    
+  
+  
+  
+    <li class="md-nav__item md-nav__item--active">
+      
+      <input class="md-nav__toggle md-toggle" type="checkbox" id="__toc">
+      
+      
+        
+      
+      
+        <label class="md-nav__link md-nav__link--active" for="__toc">
+          
+  
+  <span class="md-ellipsis">
+    C10: Handle All Errors and Exceptions
+  </span>
+  
+
+          <span class="md-nav__icon md-icon"></span>
+        </label>
+      
+      <a href="./" class="md-nav__link md-nav__link--active">
+        
+  
+  <span class="md-ellipsis">
+    C10: Handle All Errors and Exceptions
+  </span>
+  
+
+      </a>
+      
+        
+
+<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
+  
+  
+  
+    
+  
+  
+    <label class="md-nav__title" for="__toc">
+      <span class="md-nav__icon md-icon"></span>
+      Table of contents
+    </label>
+    <ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
+      
+        <li class="md-nav__item">
+  <a href="#description" class="md-nav__link">
+    <span class="md-ellipsis">
+      Description
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#error-handling-mistakes" class="md-nav__link">
+    <span class="md-ellipsis">
+      Error Handling Mistakes
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#positive-advice" class="md-nav__link">
+    <span class="md-ellipsis">
+      Positive Advice
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#references" class="md-nav__link">
+    <span class="md-ellipsis">
+      References
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#tools" class="md-nav__link">
+    <span class="md-ellipsis">
+      Tools
+    </span>
+  </a>
+  
+</li>
+      
+    </ul>
+  
+</nav>
+      
+    </li>
+  
+
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+            
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+  
+    <li class="md-nav__item">
+      <a href="../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
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+    </li>
+  
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+              
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+        </nav>
+      
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+      <a href="../../2016/" class="md-nav__link">
+        
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+  <span class="md-ellipsis">
+    Top 10 2016
+  </span>
+  
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+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../2014/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2014
+  </span>
+  
+
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+    </li>
+  
+
+    
+  </ul>
+</nav>
+                  </div>
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+<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
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+      <span class="md-nav__icon md-icon"></span>
+      Table of contents
+    </label>
+    <ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
+      
+        <li class="md-nav__item">
+  <a href="#description" class="md-nav__link">
+    <span class="md-ellipsis">
+      Description
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#error-handling-mistakes" class="md-nav__link">
+    <span class="md-ellipsis">
+      Error Handling Mistakes
+    </span>
+  </a>
+  
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+  <a href="#positive-advice" class="md-nav__link">
+    <span class="md-ellipsis">
+      Positive Advice
+    </span>
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+      
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+  <a href="#references" class="md-nav__link">
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+      References
+    </span>
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+  <a href="#tools" class="md-nav__link">
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+      Tools
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+                
+                  
+
+  
+  
+
+
+<h1 id="c10-handle-all-errors-and-exceptions">C10: Handle all Errors and Exceptions</h1>
+<h2 id="description">Description</h2>
+<p>Exception handling is a programming concept that allows an application to respond to different error states (like network down, or database connection failed, etc) in various ways. Handling exceptions and errors correctly is critical to making your code reliable and secure.</p>
+<p>Error and exception handling occurs in all areas of an application including critical business logic as well as security features and framework code.</p>
+<p>Error handling is also important from an intrusion detection perspective. Certain attacks against your application may trigger errors which can help detect attacks in progress.</p>
+<h2 id="error-handling-mistakes">Error Handling Mistakes</h2>
+<p>Researchers at the University of Toronto have found that even small mistakes in error handling or forgetting to handle errors can lead to <a href="https://www.usenix.org/system/files/conference/osdi14/osdi14-paper-yuan.pdf">catastrophic failures in distributed systems</a>.</p>
+<p>Mistakes in error handling can lead to different kinds of security vulnerabilities.</p>
+<ul>
+<li><strong>Information leakage</strong>: Leaking sensitive information in error messages can unintentionally help attackers. For example, an error that returns a stack trace or other internal error details can provide an attacker with information about your environment. Even small differences in handling different error conditions (e.g., returning "invalid user" or "invalid password" on authentication errors) can provide valuable clues to attackers. As described above, be sure to log error details for forensics and debugging purposes, but don’t expose this information, especially to an external client.</li>
+<li><strong>TLS bypass</strong>:  The <a href="https://www.dwheeler.com/essays/apple-goto-fail.html">Apple goto "fail bug"</a> was a control-flow error in error handling code that lead to a complete compromise of TLS connections on apple systems.</li>
+<li><strong>DOS</strong>: A lack of basic error handling can lead to system shutdown. This is usually a fairly easy vulnerability for attackers to exploit. Other error handling problems could lead to increased usage of CPU or disk in ways that could degrade the system.</li>
+</ul>
+<h2 id="positive-advice">Positive Advice</h2>
+<ul>
+<li>Manage exceptions in a <a href="https://www.owasp.org/index.php/Error_Handling#Centralised_exception_handling_.28Struts_Example.29">centralized manner</a> to avoid duplicated try/catch blocks in the code. Ensure that all unexpected behavior is correctly handled inside the application.</li>
+<li>Ensure that error messages displayed to users do not leak critical data, but are still verbose enough to enable the proper user response.</li>
+<li>Ensure that exceptions are logged in a way that gives enough information for support, QA, forensics or incident response teams to understand the problem.</li>
+<li>Carefully test and verify error handling code.</li>
+</ul>
+<h2 id="references">References</h2>
+<ul>
+<li><a href="https://www.owasp.org/index.php/Error_Handling">OWASP Code Review Guide: Error Handling</a></li>
+<li><a href="https://www.owasp.org/index.php/Testing_for_Error_Handling">OWASP Testing Guide: Testing for Error Handling</a></li>
+<li><a href="https://www.owasp.org/index.php/Improper_Error_Handling">OWASP Improper Error Handling</a></li>
+<li><a href="https://cwe.mitre.org/data/definitions/209.html">CWE 209: Information Exposure Through an Error Message</a></li>
+<li><a href="https://cwe.mitre.org/data/definitions/391.html">CWE 391: Unchecked Error Condition</a></li>
+</ul>
+<h2 id="tools">Tools</h2>
+<ul>
+<li><a href="http://errorprone.info/">Error Prone</a>  - A static analysis tool from Google to catch common mistakes in error handling for Java developers</li>
+<li>One of the most famous automated tools for finding errors at runtime is <a href="https://github.com/Netflix/SimianArmy">Netflix's Chaos Monkey</a>, which intentionally disables system instances to ensure that the overall service will recover correctly.</li>
+</ul>
+
+
+
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+              </article>
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+  
+  
+    <li class="md-nav__item">
+      <a href="../../../introduction/contributing/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    How to contribute?
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../introduction/related-owasp-projects/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Related OWASP Projects
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
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+  
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+      
+      
+        
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+    <li class="md-nav__item md-nav__item--nested">
+      
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+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_2" >
+        
+          
+          <label class="md-nav__link" for="__nav_1_2" id="__nav_1_2_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    About the Top 10
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_2">
+            <span class="md-nav__icon md-icon"></span>
+            About the Top 10
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../about-top-10/in-the-news/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    In the News
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../about-top-10/contributors/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Our Contributors
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../about-top-10/old-versions-and-translations/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Old Versions and Translations
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+              
+            
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+                
+  
+  
+  
+  
+    
+    
+    
+      
+      
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_3" >
+        
+          
+          <label class="md-nav__link" for="__nav_1_3" id="__nav_1_3_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    The Top 10 List
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_3_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_3">
+            <span class="md-nav__icon md-icon"></span>
+            The Top 10 List
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c1-accesscontrol/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Implement Access Control
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c2-crypto/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Use Cryptography the proper way
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c3-validate-input-and-handle-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Validate all Input & Handle Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c4-secure-architecture/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Address Security from the Start
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c5-secure-by-default/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Secure By Default Configurations
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c6-use-secure-dependencies/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Keep your Components Secure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c7-implement-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c8-help-the-browser-defend-the-user/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Leverage Browser Security Features
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c9-security-logging-and-monitoring/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c10-stop-server-side-request-forgery/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Stop Server Side Request Forgery
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+    
+  
+  
+  
+    
+    
+    
+      
+        
+        
+      
+      
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" checked>
+        
+          
+          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="">
+            
+  
+  <span class="md-ellipsis">
+    Top 10 2018
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="true">
+          <label class="md-nav__title" for="__nav_2">
+            <span class="md-nav__icon md-icon"></span>
+            Top 10 2018
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x01-about-owasp/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About OWASP
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x02-about-project/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Project
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x03-about-structure/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Structure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x04-introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c1-security-requirements/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+    
+  
+  
+  
+    <li class="md-nav__item md-nav__item--active">
+      
+      <input class="md-nav__toggle md-toggle" type="checkbox" id="__toc">
+      
+      
+        
+      
+      
+        <label class="md-nav__link md-nav__link--active" for="__toc">
+          
+  
+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
+          <span class="md-nav__icon md-icon"></span>
+        </label>
+      
+      <a href="./" class="md-nav__link md-nav__link--active">
+        
+  
+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
+      </a>
+      
+        
+
+<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
+  
+  
+  
+    
+  
+  
+    <label class="md-nav__title" for="__toc">
+      <span class="md-nav__icon md-icon"></span>
+      Table of contents
+    </label>
+    <ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
+      
+        <li class="md-nav__item">
+  <a href="#description" class="md-nav__link">
+    <span class="md-ellipsis">
+      Description
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#implementation-best-practices" class="md-nav__link">
+    <span class="md-ellipsis">
+      Implementation Best Practices
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#vulnerabilities-prevented" class="md-nav__link">
+    <span class="md-ellipsis">
+      Vulnerabilities Prevented
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#tools" class="md-nav__link">
+    <span class="md-ellipsis">
+      Tools
+    </span>
+  </a>
+  
+</li>
+      
+    </ul>
+  
+</nav>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c3-secure-database/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c4-encode-escape-data/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c5-validate-inputs/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c6-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c7-enforce-access-controls/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c8-protect-data-everywhere/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Protect Data Everywhere
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c9-security-logging/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c10-errors-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Handle All Errors and Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../2016/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2016
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../2014/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2014
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+  </ul>
+</nav>
+                  </div>
+                </div>
+              </div>
+            
+            
+              
+              <div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" >
+                <div class="md-sidebar__scrollwrap">
+                  <div class="md-sidebar__inner">
+                    
+
+<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
+  
+  
+  
+    
+  
+  
+    <label class="md-nav__title" for="__toc">
+      <span class="md-nav__icon md-icon"></span>
+      Table of contents
+    </label>
+    <ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
+      
+        <li class="md-nav__item">
+  <a href="#description" class="md-nav__link">
+    <span class="md-ellipsis">
+      Description
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#implementation-best-practices" class="md-nav__link">
+    <span class="md-ellipsis">
+      Implementation Best Practices
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#vulnerabilities-prevented" class="md-nav__link">
+    <span class="md-ellipsis">
+      Vulnerabilities Prevented
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#tools" class="md-nav__link">
+    <span class="md-ellipsis">
+      Tools
+    </span>
+  </a>
+  
+</li>
+      
+    </ul>
+  
+</nav>
+                  </div>
+                </div>
+              </div>
+            
+          
+          
+            <div class="md-content" data-md-component="content">
+              <article class="md-content__inner md-typeset">
+                
+                  
+
+  
+  
+
+
+<h1 id="c2-leverage-security-frameworks-and-libraries">C2: Leverage Security Frameworks and Libraries</h1>
+<h2 id="description">Description</h2>
+<p>Secure coding libraries and software frameworks with embedded security help software developers guard against security-related design and implementation flaws. A developer writing an application from scratch might not have sufficient knowledge, time, or budget to properly implement or maintain security features. Leveraging security frameworks helps accomplish security goals more efficiently and accurately.</p>
+<h2 id="implementation-best-practices">Implementation Best Practices</h2>
+<p>When incorporating third party libraries or frameworks into your software, it is important to consider the following best practices:</p>
+<ol>
+<li>Use libraries and frameworks from trusted sources that are actively maintained and widely used by many applications.</li>
+<li>Create and maintain an inventory catalog of all the third party libraries.</li>
+<li>Proactively keep libraries and components up to date. Use a tool like <a href="https://owasp.org/www-project-dependency-check/">OWASP Dependency Check</a> and <a href="https://retirejs.github.io/retire.js/">Retire.JS</a> to identify project dependencies and check if there are any known, publicly disclosed vulnerabilities for all third party code.</li>
+<li>Reduce the attack surface by encapsulating the library and expose only the required behaviour into your software.</li>
+</ol>
+<h2 id="vulnerabilities-prevented">Vulnerabilities Prevented</h2>
+<p>Secure frameworks and libraries can help to prevent a wide range of web application vulnerabilities. It is critical to keep these frameworks and libraries up to date as described in the [using components with known vulnerabilities <a href="https://owasp.org/www-project-top-ten/">Top Ten 2017 risks</a>.</p>
+<h2 id="tools">Tools</h2>
+<ul>
+<li><a href="https://owasp.org/www-project-dependency-check/">OWASP Dependency Check</a> - identifies project dependencies and checks for publicly disclosed vulnerabilities</li>
+<li><a href="http://retirejs.github.io/retire.js/">Retire.JS</a> scanner for JavaScript libraries</li>
+</ul>
+
+
+
+
+
+
+
+  
+  
+
+
+
+  
+
+
+
+
+                
+              </article>
+            </div>
+          
+          
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+        
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1">
+            <span class="md-nav__icon md-icon"></span>
+            Current Top 10 (WIP, 2024)
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    
+    
+    
+      
+      
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_1" >
+        
+          
+          <label class="md-nav__link" for="__nav_1_1" id="__nav_1_1_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_1_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_1">
+            <span class="md-nav__icon md-icon"></span>
+            Introduction
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../.." class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About this Project
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../introduction/about-owasp/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About OWASP
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../introduction/contributing/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    How to contribute?
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../introduction/related-owasp-projects/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Related OWASP Projects
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    
+    
+    
+      
+      
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_2" >
+        
+          
+          <label class="md-nav__link" for="__nav_1_2" id="__nav_1_2_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    About the Top 10
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_2">
+            <span class="md-nav__icon md-icon"></span>
+            About the Top 10
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../about-top-10/in-the-news/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    In the News
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../about-top-10/contributors/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Our Contributors
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../about-top-10/old-versions-and-translations/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Old Versions and Translations
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    
+    
+    
+      
+      
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_3" >
+        
+          
+          <label class="md-nav__link" for="__nav_1_3" id="__nav_1_3_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    The Top 10 List
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_3_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_3">
+            <span class="md-nav__icon md-icon"></span>
+            The Top 10 List
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c1-accesscontrol/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Implement Access Control
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c2-crypto/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Use Cryptography the proper way
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c3-validate-input-and-handle-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Validate all Input & Handle Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c4-secure-architecture/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Address Security from the Start
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c5-secure-by-default/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Secure By Default Configurations
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c6-use-secure-dependencies/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Keep your Components Secure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c7-implement-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c8-help-the-browser-defend-the-user/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Leverage Browser Security Features
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c9-security-logging-and-monitoring/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c10-stop-server-side-request-forgery/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Stop Server Side Request Forgery
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+    
+  
+  
+  
+    
+    
+    
+      
+        
+        
+      
+      
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" checked>
+        
+          
+          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="">
+            
+  
+  <span class="md-ellipsis">
+    Top 10 2018
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="true">
+          <label class="md-nav__title" for="__nav_2">
+            <span class="md-nav__icon md-icon"></span>
+            Top 10 2018
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x01-about-owasp/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About OWASP
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x02-about-project/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Project
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x03-about-structure/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Structure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x04-introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c1-security-requirements/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c2-leverage-security-frameworks-libraries/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+    
+  
+  
+  
+    <li class="md-nav__item md-nav__item--active">
+      
+      <input class="md-nav__toggle md-toggle" type="checkbox" id="__toc">
+      
+      
+        
+      
+      
+        <label class="md-nav__link md-nav__link--active" for="__toc">
+          
+  
+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
+          <span class="md-nav__icon md-icon"></span>
+        </label>
+      
+      <a href="./" class="md-nav__link md-nav__link--active">
+        
+  
+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
+      </a>
+      
+        
+
+<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
+  
+  
+  
+    
+  
+  
+    <label class="md-nav__title" for="__toc">
+      <span class="md-nav__icon md-icon"></span>
+      Table of contents
+    </label>
+    <ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
+      
+        <li class="md-nav__item">
+  <a href="#description" class="md-nav__link">
+    <span class="md-ellipsis">
+      Description
+    </span>
+  </a>
+  
+    <nav class="md-nav" aria-label="Description">
+      <ul class="md-nav__list">
+        
+          <li class="md-nav__item">
+  <a href="#secure-queries" class="md-nav__link">
+    <span class="md-ellipsis">
+      Secure Queries
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#secure-configuration" class="md-nav__link">
+    <span class="md-ellipsis">
+      Secure Configuration
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#secure-authentication" class="md-nav__link">
+    <span class="md-ellipsis">
+      Secure Authentication
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#secure-communication" class="md-nav__link">
+    <span class="md-ellipsis">
+      Secure Communication
+    </span>
+  </a>
+  
+</li>
+        
+      </ul>
+    </nav>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#vulnerabilities-prevented" class="md-nav__link">
+    <span class="md-ellipsis">
+      Vulnerabilities Prevented
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#references" class="md-nav__link">
+    <span class="md-ellipsis">
+      References
+    </span>
+  </a>
+  
+</li>
+      
+    </ul>
+  
+</nav>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c4-encode-escape-data/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c5-validate-inputs/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c6-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c7-enforce-access-controls/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c8-protect-data-everywhere/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Protect Data Everywhere
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c9-security-logging/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c10-errors-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Handle All Errors and Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../2016/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2016
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../2014/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2014
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+  </ul>
+</nav>
+                  </div>
+                </div>
+              </div>
+            
+            
+              
+              <div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" >
+                <div class="md-sidebar__scrollwrap">
+                  <div class="md-sidebar__inner">
+                    
+
+<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
+  
+  
+  
+    
+  
+  
+    <label class="md-nav__title" for="__toc">
+      <span class="md-nav__icon md-icon"></span>
+      Table of contents
+    </label>
+    <ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
+      
+        <li class="md-nav__item">
+  <a href="#description" class="md-nav__link">
+    <span class="md-ellipsis">
+      Description
+    </span>
+  </a>
+  
+    <nav class="md-nav" aria-label="Description">
+      <ul class="md-nav__list">
+        
+          <li class="md-nav__item">
+  <a href="#secure-queries" class="md-nav__link">
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+</li>
+        
+          <li class="md-nav__item">
+  <a href="#secure-configuration" class="md-nav__link">
+    <span class="md-ellipsis">
+      Secure Configuration
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+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#secure-authentication" class="md-nav__link">
+    <span class="md-ellipsis">
+      Secure Authentication
+    </span>
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+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#secure-communication" class="md-nav__link">
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+    </span>
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+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#references" class="md-nav__link">
+    <span class="md-ellipsis">
+      References
+    </span>
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+  
+</li>
+      
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+</nav>
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+              </div>
+            
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+          
+            <div class="md-content" data-md-component="content">
+              <article class="md-content__inner md-typeset">
+                
+                  
+
+  
+  
+
+
+<h1 id="c3-secure-database-access">C3: Secure Database Access</h1>
+<h2 id="description">Description</h2>
+<p>This section describes secure access to all data stores, including both relational databases and NoSQL databases. Some areas to consider:</p>
+<ol>
+<li>Secure queries</li>
+<li>Secure configuration</li>
+<li>Secure authentication</li>
+<li>Secure communication</li>
+</ol>
+<h3 id="secure-queries">Secure Queries</h3>
+<p>SQL Injection occurs when untrusted user input is dynamically added to a SQL query in an insecure manner, often via basic string concatenation. SQL Injection is one of the most dangerous application security risks. SQL Injection is easy to exploit and could lead to the entire database being stolen, wiped, or modified. The application can even be used to run dangerous commands against the operating system hosting your database, thereby giving an attacker a foothold on your network.</p>
+<p>In order to mitigate SQL injection, untrusted input should be prevented from being interpreted as part of a SQL command. The best way to do this is with the programming technique known as 'Query Parameterization'. This defense should be applied to SQL, OQL, as well as stored procedure construction.</p>
+<p>A good list of query parameterization examples in ASP, ColdFusion, C#, Delphi, .NET, Go, Java, Perl, PHP, PL/SQL, PostgreSQL, Python, R, Ruby and Scheme can be found at <a href="http://bobby-tables.com/">http://bobby-tables.com</a> and the <a href="https://cheatsheetseries.owasp.org/cheatsheets/Query_Parameterization_Cheat_Sheet.html">OWASP Cheat Sheet on Query Parameterization</a>.</p>
+<p><strong>Caution on Query Parameterization</strong></p>
+<p>Certain locations in a database query are not parameterizable. These locations are different for each database vendor. Be certain to do very careful exact-match validation or manual escaping when confronting database query parameters that cannot be bound to a parameterized query. Also, while the use of parameterized queries largely has a positive impact on performance, certain parameterized queries in specific database implementations will affect performance negatively. Be sure to test queries for performance; especially complex queries with extensive like clause or text searching capabilities.</p>
+<h3 id="secure-configuration">Secure Configuration</h3>
+<p>Unfortunately, database management systems do not always ship in a "secure by default" configuration. Care must be taken to ensure that the security controls available from the Database Management System (DBMS) and hosting platform are enabled and properly configured. There are standards, guides, and benchmarks available for most common DBMS. </p>
+<p>A quick guidance on providing a secure configuration can be found in the <a href="https://cheatsheetseries.owasp.org/cheatsheets/Database_Security_Cheat_Sheet.html#database-configuration-and-hardening">Database Cheat Sheet</a>.</p>
+<h3 id="secure-authentication">Secure Authentication</h3>
+<p>All access to the database should be properly authenticated. Authentication to the DBMS should be accomplished in a secure manner. Authentication should take place only over a secure channel. Credentials must be properly secured and available for use.</p>
+<p>A quick guidance on providing a secure authentication process can be found in the <a href="https://cheatsheetseries.owasp.org/cheatsheets/Database_Security_Cheat_Sheet.html#authentication">Database Cheat Sheet</a>.</p>
+<h3 id="secure-communication">Secure Communication</h3>
+<p>Most DBMS support a variety of communications methods (services, APIs, etc) - secure (authenticated, encrypted) and insecure (unauthenticated or unencrypted). It is a good practice to only use the secure communications options per the <em>Protect Data Everywhere</em> control.</p>
+<p>A quick guidance on providing a secure communication mean can be found in the <a href="https://cheatsheetseries.owasp.org/cheatsheets/Database_Security_Cheat_Sheet.html#connecting-to-the-database">Database Cheat Sheet</a>.</p>
+<h2 id="vulnerabilities-prevented">Vulnerabilities Prevented</h2>
+<ul>
+<li><a href="https://owasp.org/Top10/A03_2021-Injection/">OWASP Top 10 2021-A3: Injection</a></li>
+<li><a href="https://www.owasp.org/index.php/Mobile_Top_10_2014-M1">OWASP Mobile Top 10 2014-M1 Weak Server Side Controls</a></li>
+</ul>
+<h2 id="references">References</h2>
+<ul>
+<li><a href="https://cheatsheetseries.owasp.org/cheatsheets/Query_Parameterization_Cheat_Sheet.html">OWASP Cheat Sheet: Query Parameterization</a></li>
+<li><a href="https://cheatsheetseries.owasp.org/cheatsheets/Database_Security_Cheat_Sheet.html">OWASP Cheat Sheet: Database Security</a></li>
+<li><a href="http://bobby-tables.com/">Bobby Tables: A guide to preventing SQL injection</a></li>
+<li><a href="https://www.cisecurity.org/cis-benchmarks/">CIS Database Hardening Standards</a></li>
+</ul>
+
+
+
+
+
+
+
+  
+  
+
+
+
+  
+
+
+
+
+                
+              </article>
+            </div>
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+      <a href="../../2014/" class="md-tabs__link">
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+
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+      <a href="../../../introduction/about-owasp/" class="md-nav__link">
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+    How to contribute?
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+            About the Top 10
+          </label>
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+            
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+  
+  
+  
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+    <li class="md-nav__item">
+      <a href="../../../about-top-10/in-the-news/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    In the News
+  </span>
+  
+
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+    </li>
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+  
+  
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+  
+    <li class="md-nav__item">
+      <a href="../../../about-top-10/contributors/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Our Contributors
+  </span>
+  
+
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+    </li>
+  
+
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+              
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+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../about-top-10/old-versions-and-translations/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Old Versions and Translations
+  </span>
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+        </nav>
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+      
+        
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+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_3" >
+        
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+          <label class="md-nav__link" for="__nav_1_3" id="__nav_1_3_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    The Top 10 List
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_3_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_3">
+            <span class="md-nav__icon md-icon"></span>
+            The Top 10 List
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c1-accesscontrol/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Implement Access Control
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c2-crypto/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Use Cryptography the proper way
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c3-validate-input-and-handle-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Validate all Input & Handle Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c4-secure-architecture/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Address Security from the Start
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c5-secure-by-default/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Secure By Default Configurations
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c6-use-secure-dependencies/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Keep your Components Secure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c7-implement-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c8-help-the-browser-defend-the-user/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Leverage Browser Security Features
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c9-security-logging-and-monitoring/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c10-stop-server-side-request-forgery/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Stop Server Side Request Forgery
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+              
+            
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+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
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+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
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+    <li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
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+    Top 10 2018
+  </span>
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+            Top 10 2018
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+            
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+  
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+  
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+    <li class="md-nav__item">
+      <a href="../0x01-about-owasp/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About OWASP
+  </span>
+  
+
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+    </li>
+  
+
+              
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+              
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+  
+  
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+    <li class="md-nav__item">
+      <a href="../0x02-about-project/" class="md-nav__link">
+        
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+  <span class="md-ellipsis">
+    About Project
+  </span>
+  
+
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+  
+
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+              
+                
+  
+  
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+    <li class="md-nav__item">
+      <a href="../0x03-about-structure/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Structure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x04-introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
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+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c1-security-requirements/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c2-leverage-security-frameworks-libraries/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c3-secure-database/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+    
+  
+  
+  
+    <li class="md-nav__item md-nav__item--active">
+      
+      <input class="md-nav__toggle md-toggle" type="checkbox" id="__toc">
+      
+      
+        
+      
+      
+        <label class="md-nav__link md-nav__link--active" for="__toc">
+          
+  
+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
+          <span class="md-nav__icon md-icon"></span>
+        </label>
+      
+      <a href="./" class="md-nav__link md-nav__link--active">
+        
+  
+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
+      </a>
+      
+        
+
+<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
+  
+  
+  
+    
+  
+  
+    <label class="md-nav__title" for="__toc">
+      <span class="md-nav__icon md-icon"></span>
+      Table of contents
+    </label>
+    <ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
+      
+        <li class="md-nav__item">
+  <a href="#description" class="md-nav__link">
+    <span class="md-ellipsis">
+      Description
+    </span>
+  </a>
+  
+    <nav class="md-nav" aria-label="Description">
+      <ul class="md-nav__list">
+        
+          <li class="md-nav__item">
+  <a href="#contextual-output-encoding" class="md-nav__link">
+    <span class="md-ellipsis">
+      Contextual Output Encoding
+    </span>
+  </a>
+  
+    <nav class="md-nav" aria-label="Contextual Output Encoding">
+      <ul class="md-nav__list">
+        
+          <li class="md-nav__item">
+  <a href="#java-encoding-examples" class="md-nav__link">
+    <span class="md-ellipsis">
+      Java Encoding Examples
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#net-encoding-examples" class="md-nav__link">
+    <span class="md-ellipsis">
+      .NET Encoding Examples
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#php-encoding-examples" class="md-nav__link">
+    <span class="md-ellipsis">
+      PHP Encoding Examples
+    </span>
+  </a>
+  
+</li>
+        
+      </ul>
+    </nav>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#other-types-of-encoding-and-injection-defense" class="md-nav__link">
+    <span class="md-ellipsis">
+      Other Types of Encoding and Injection Defense
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#character-encoding-and-canonicalization" class="md-nav__link">
+    <span class="md-ellipsis">
+      Character Encoding and Canonicalization
+    </span>
+  </a>
+  
+</li>
+        
+      </ul>
+    </nav>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#vulnerabilities-prevented" class="md-nav__link">
+    <span class="md-ellipsis">
+      Vulnerabilities Prevented
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#references" class="md-nav__link">
+    <span class="md-ellipsis">
+      References
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#tools" class="md-nav__link">
+    <span class="md-ellipsis">
+      Tools
+    </span>
+  </a>
+  
+</li>
+      
+    </ul>
+  
+</nav>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c5-validate-inputs/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c6-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c7-enforce-access-controls/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c8-protect-data-everywhere/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Protect Data Everywhere
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c9-security-logging/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c10-errors-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Handle All Errors and Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
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+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../2016/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2016
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../2014/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2014
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+  </ul>
+</nav>
+                  </div>
+                </div>
+              </div>
+            
+            
+              
+              <div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" >
+                <div class="md-sidebar__scrollwrap">
+                  <div class="md-sidebar__inner">
+                    
+
+<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
+  
+  
+  
+    
+  
+  
+    <label class="md-nav__title" for="__toc">
+      <span class="md-nav__icon md-icon"></span>
+      Table of contents
+    </label>
+    <ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
+      
+        <li class="md-nav__item">
+  <a href="#description" class="md-nav__link">
+    <span class="md-ellipsis">
+      Description
+    </span>
+  </a>
+  
+    <nav class="md-nav" aria-label="Description">
+      <ul class="md-nav__list">
+        
+          <li class="md-nav__item">
+  <a href="#contextual-output-encoding" class="md-nav__link">
+    <span class="md-ellipsis">
+      Contextual Output Encoding
+    </span>
+  </a>
+  
+    <nav class="md-nav" aria-label="Contextual Output Encoding">
+      <ul class="md-nav__list">
+        
+          <li class="md-nav__item">
+  <a href="#java-encoding-examples" class="md-nav__link">
+    <span class="md-ellipsis">
+      Java Encoding Examples
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#net-encoding-examples" class="md-nav__link">
+    <span class="md-ellipsis">
+      .NET Encoding Examples
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#php-encoding-examples" class="md-nav__link">
+    <span class="md-ellipsis">
+      PHP Encoding Examples
+    </span>
+  </a>
+  
+</li>
+        
+      </ul>
+    </nav>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#other-types-of-encoding-and-injection-defense" class="md-nav__link">
+    <span class="md-ellipsis">
+      Other Types of Encoding and Injection Defense
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#character-encoding-and-canonicalization" class="md-nav__link">
+    <span class="md-ellipsis">
+      Character Encoding and Canonicalization
+    </span>
+  </a>
+  
+</li>
+        
+      </ul>
+    </nav>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#vulnerabilities-prevented" class="md-nav__link">
+    <span class="md-ellipsis">
+      Vulnerabilities Prevented
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#references" class="md-nav__link">
+    <span class="md-ellipsis">
+      References
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#tools" class="md-nav__link">
+    <span class="md-ellipsis">
+      Tools
+    </span>
+  </a>
+  
+</li>
+      
+    </ul>
+  
+</nav>
+                  </div>
+                </div>
+              </div>
+            
+          
+          
+            <div class="md-content" data-md-component="content">
+              <article class="md-content__inner md-typeset">
+                
+                  
+
+  
+  
+
+
+<h1 id="c4-encode-and-escape-data">C4: Encode and Escape Data</h1>
+<h2 id="description">Description</h2>
+<p><strong>Encoding</strong> and escaping are defensive techniques meant to stop injection attacks. Encoding (commonly called "Output Encoding") involves translating special characters into some different but equivalent form that is no longer dangerous in the target interpreter, for example translating the <code>&lt;</code> character into the <code>&amp;lt;</code> string when writing to an HTML page. <strong>Escaping</strong> involves adding a special character before the character/string to avoid it being misinterpreted, for example, adding a <code>\</code> character before a <code>"</code> (double quote) character so that it is interpreted as text and not as closing a string.</p>
+<p>Output encoding is best applied <strong>just before</strong> the content is passed to the target interpreter. If this defense is performed too early in the processing of a request then the encoding or escaping may interfere with the use of the content in other parts of the program. For example if you HTML escape content before storing that data in the database and the UI automatically escapes that data a second time then the content will not display properly due to being double escaped.</p>
+<h3 id="contextual-output-encoding">Contextual Output Encoding</h3>
+<p>Contextual output encoding is a crucial security programming technique needed to stop XSS. This defense is performed on output, when you're building a user interface, at the last moment before untrusted data is dynamically added to HTML. The type of encoding will depend on the location (or context) in the document where data is being displayed or stored. The different types of encoding that would be used for building secure user interfaces includes HTML Entity Encoding, HTML Attribute Encoding, JavaScript Encoding, and URL Encoding.</p>
+<h4 id="java-encoding-examples">Java Encoding Examples</h4>
+<p>For examples of the OWASP Java Encoder providing contextual output encoding see: <a href="https://www.owasp.org/index.php/OWASP_Java_Encoder_Project#tab=Use_the_Java_Encoder_Project">OWASP Java Encoder Project Examples</a>.</p>
+<h4 id="net-encoding-examples">.NET Encoding Examples</h4>
+<p>Starting with .NET 4.5 , the Anti-Cross Site Scripting library is part of the framework, but not enabled by default. You can specify to use AntiXssEncoder from this library as the default encoder for your entire application using the web.conf settings. When applied is important to contextual encode your output - that means to use the right function from the AntiXSSEncoder library for the appropriate location of data in document.</p>
+<h4 id="php-encoding-examples">PHP Encoding Examples</h4>
+<p><strong>Zend Framework 2</strong></p>
+<p>In Zend Framework 2 (ZF2), <code>Zend\Escaper</code> can be used for encoding the output. For contextual encoding examples see <a href="https://framework.zend.com/blog/2017-05-16-zend-escaper.html">Context-specific escaping with zend-escaper</a>.</p>
+<h3 id="other-types-of-encoding-and-injection-defense">Other Types of Encoding and Injection Defense</h3>
+<p>Encoding/Escaping can be used to neutralize content against other forms of injection. For example, it's possible to neutralize certain special meta-characters when adding input to an operating system command. This is called "OS command escaping", "shell escaping", or similar. This defense can be used to stop "Command Injection" vulnerabilities.</p>
+<p>There are other forms of escaping that can be used to stop injection such as XML attribute escaping stopping various forms of XML and XML path injection, as well as LDAP distinguished name escaping that can be used to stop various forms of LDAP injection.</p>
+<h3 id="character-encoding-and-canonicalization">Character Encoding and Canonicalization</h3>
+<p>Unicode Encoding is a method for storing characters with multiple bytes. Wherever input data is allowed, data can be entered using <a href="https://www.owasp.org/index.php/Unicode_Encoding">Unicode</a> to disguise malicious code and permit a variety of attacks. <a href="https://tools.ietf.org/html/rfc2279">RFC 2279</a> references many ways that text can be encoded.</p>
+<p>Canonicalization is a method in which systems convert data into a simple or standard form.  Web applications commonly use character canonicalization to ensure all content is of the same character type when stored or displayed.</p>
+<p>To be secure against canonicalization related attacks means an application should be safe when malformed Unicode and other malformed character representations are entered.</p>
+<h2 id="vulnerabilities-prevented">Vulnerabilities Prevented</h2>
+<ul>
+<li><a href="https://www.owasp.org/index.php/Top_10-2017_A1-Injection">OWASP Top 10 2017 - A1: Injection</a></li>
+<li><a href="https://www.owasp.org/index.php/Top_10-2017_A7-Cross-Site_Scripting_(XSS)">OWASP Top 10 2017 - A7: Cross Site Scripting (XSS)</a></li>
+<li><a href="https://www.owasp.org/index.php/Mobile_Top_10_2014-M7">OWASP Mobile_Top_10_2014-M7 Client Side Injection</a></li>
+</ul>
+<h2 id="references">References</h2>
+<ul>
+<li><a href="https://www.owasp.org/index.php/Cross-site_Scripting_(XSS)">XSS</a> - General information</li>
+<li><a href="https://www.owasp.org/index.php/XSS_(Cross_Site_Scripting)_Prevention_Cheat_Sheet">OWASP Cheat Sheet: XSS Prevention</a> - Stopping XSS in your web application</li>
+<li><a href="https://www.owasp.org/index.php/DOM_based_XSS_Prevention_Cheat_Sheet">OWASP Cheat Sheet: DOM based XSS Prevention</a></li>
+<li><a href="https://www.owasp.org/index.php/Injection_Prevention_Cheat_Sheet">OWASP Cheat Sheet: Injection Prevention</a></li>
+</ul>
+<h2 id="tools">Tools</h2>
+<ul>
+<li><a href="https://www.owasp.org/index.php/OWASP_Java_Encoder_Project">OWASP Java Encoder Project</a></li>
+<li><a href="https://docs.microsoft.com/en-us/dotnet/api/system.web.security.antixss.antixssencoder?redirectedfrom=MSDN&amp;view=netframework-4.7.2">AntiXSSEncoder</a></li>
+<li><a href="https://framework.zend.com/blog/2017-05-16-zend-escaper.html">Zend\Escaper</a> - examples of contextual encoding</li>
+</ul>
+
+
+
+
+
+
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+      <a href="../../../the-top-10/introduction/" class="md-nav__link">
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+      <a href="../../../the-top-10/c1-accesscontrol/" class="md-nav__link">
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+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c3-validate-input-and-handle-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Validate all Input & Handle Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c4-secure-architecture/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Address Security from the Start
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c5-secure-by-default/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Secure By Default Configurations
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c6-use-secure-dependencies/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Keep your Components Secure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c7-implement-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c8-help-the-browser-defend-the-user/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Leverage Browser Security Features
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c9-security-logging-and-monitoring/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c10-stop-server-side-request-forgery/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Stop Server Side Request Forgery
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+    
+  
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+    
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+    
+      
+        
+        
+      
+      
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
+      
+        
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+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" checked>
+        
+          
+          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="">
+            
+  
+  <span class="md-ellipsis">
+    Top 10 2018
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="true">
+          <label class="md-nav__title" for="__nav_2">
+            <span class="md-nav__icon md-icon"></span>
+            Top 10 2018
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x01-about-owasp/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About OWASP
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x02-about-project/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Project
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x03-about-structure/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Structure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x04-introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c1-security-requirements/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c2-leverage-security-frameworks-libraries/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c3-secure-database/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c4-encode-escape-data/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+    
+  
+  
+  
+    <li class="md-nav__item md-nav__item--active">
+      
+      <input class="md-nav__toggle md-toggle" type="checkbox" id="__toc">
+      
+      
+        
+      
+      
+        <label class="md-nav__link md-nav__link--active" for="__toc">
+          
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+          <span class="md-nav__icon md-icon"></span>
+        </label>
+      
+      <a href="./" class="md-nav__link md-nav__link--active">
+        
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+      </a>
+      
+        
+
+<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
+  
+  
+  
+    
+  
+  
+    <label class="md-nav__title" for="__toc">
+      <span class="md-nav__icon md-icon"></span>
+      Table of contents
+    </label>
+    <ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
+      
+        <li class="md-nav__item">
+  <a href="#description" class="md-nav__link">
+    <span class="md-ellipsis">
+      Description
+    </span>
+  </a>
+  
+    <nav class="md-nav" aria-label="Description">
+      <ul class="md-nav__list">
+        
+          <li class="md-nav__item">
+  <a href="#syntax-and-semantic-validity" class="md-nav__link">
+    <span class="md-ellipsis">
+      Syntax and Semantic Validity
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#allowlisting-vs-denylisting" class="md-nav__link">
+    <span class="md-ellipsis">
+      Allowlisting vs Denylisting
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#client-side-and-server-side-validation" class="md-nav__link">
+    <span class="md-ellipsis">
+      Client side and Server side Validation
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#regular-expressions" class="md-nav__link">
+    <span class="md-ellipsis">
+      Regular Expressions
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#limits-of-input-validation" class="md-nav__link">
+    <span class="md-ellipsis">
+      Limits of Input Validation
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#challenges-of-validating-serialized-data" class="md-nav__link">
+    <span class="md-ellipsis">
+      Challenges of Validating Serialized Data
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#unexpected-user-input-mass-assignment" class="md-nav__link">
+    <span class="md-ellipsis">
+      Unexpected User Input (Mass Assignment)
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#validating-and-sanitizing-html" class="md-nav__link">
+    <span class="md-ellipsis">
+      Validating and Sanitizing HTML
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#validation-functionality-in-libraries-and-frameworks" class="md-nav__link">
+    <span class="md-ellipsis">
+      Validation Functionality in Libraries and Frameworks
+    </span>
+  </a>
+  
+</li>
+        
+      </ul>
+    </nav>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#vulnerabilities-prevented" class="md-nav__link">
+    <span class="md-ellipsis">
+      Vulnerabilities Prevented
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#references" class="md-nav__link">
+    <span class="md-ellipsis">
+      References
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#tools" class="md-nav__link">
+    <span class="md-ellipsis">
+      Tools
+    </span>
+  </a>
+  
+</li>
+      
+    </ul>
+  
+</nav>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c6-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c7-enforce-access-controls/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c8-protect-data-everywhere/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Protect Data Everywhere
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c9-security-logging/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c10-errors-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Handle All Errors and Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../2016/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2016
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../2014/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2014
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+  </ul>
+</nav>
+                  </div>
+                </div>
+              </div>
+            
+            
+              
+              <div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" >
+                <div class="md-sidebar__scrollwrap">
+                  <div class="md-sidebar__inner">
+                    
+
+<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
+  
+  
+  
+    
+  
+  
+    <label class="md-nav__title" for="__toc">
+      <span class="md-nav__icon md-icon"></span>
+      Table of contents
+    </label>
+    <ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
+      
+        <li class="md-nav__item">
+  <a href="#description" class="md-nav__link">
+    <span class="md-ellipsis">
+      Description
+    </span>
+  </a>
+  
+    <nav class="md-nav" aria-label="Description">
+      <ul class="md-nav__list">
+        
+          <li class="md-nav__item">
+  <a href="#syntax-and-semantic-validity" class="md-nav__link">
+    <span class="md-ellipsis">
+      Syntax and Semantic Validity
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#allowlisting-vs-denylisting" class="md-nav__link">
+    <span class="md-ellipsis">
+      Allowlisting vs Denylisting
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#client-side-and-server-side-validation" class="md-nav__link">
+    <span class="md-ellipsis">
+      Client side and Server side Validation
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#regular-expressions" class="md-nav__link">
+    <span class="md-ellipsis">
+      Regular Expressions
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#limits-of-input-validation" class="md-nav__link">
+    <span class="md-ellipsis">
+      Limits of Input Validation
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#challenges-of-validating-serialized-data" class="md-nav__link">
+    <span class="md-ellipsis">
+      Challenges of Validating Serialized Data
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#unexpected-user-input-mass-assignment" class="md-nav__link">
+    <span class="md-ellipsis">
+      Unexpected User Input (Mass Assignment)
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#validating-and-sanitizing-html" class="md-nav__link">
+    <span class="md-ellipsis">
+      Validating and Sanitizing HTML
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#validation-functionality-in-libraries-and-frameworks" class="md-nav__link">
+    <span class="md-ellipsis">
+      Validation Functionality in Libraries and Frameworks
+    </span>
+  </a>
+  
+</li>
+        
+      </ul>
+    </nav>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#vulnerabilities-prevented" class="md-nav__link">
+    <span class="md-ellipsis">
+      Vulnerabilities Prevented
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#references" class="md-nav__link">
+    <span class="md-ellipsis">
+      References
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#tools" class="md-nav__link">
+    <span class="md-ellipsis">
+      Tools
+    </span>
+  </a>
+  
+</li>
+      
+    </ul>
+  
+</nav>
+                  </div>
+                </div>
+              </div>
+            
+          
+          
+            <div class="md-content" data-md-component="content">
+              <article class="md-content__inner md-typeset">
+                
+                  
+
+  
+  
+
+
+<h1 id="c5-validate-all-inputs">C5: Validate All Inputs</h1>
+<h2 id="description">Description</h2>
+<p>Input validation is a programming technique that ensures only properly formatted data may enter a software system component.</p>
+<h3 id="syntax-and-semantic-validity">Syntax and Semantic Validity</h3>
+<p>An application should check that data is both <em>syntactically</em> and <em>semantically</em> valid (in that order) before using it in any way (including displaying it back to the user).</p>
+<p><strong>Syntax validity</strong> means that the data is in the form that is expected. For example, an application may allow a user to select a four-digit "account ID" to perform some kind of operation. The application should assume the user is entering a SQL injection payload, and should check that the data entered by the user is exactly four digits in length, and consists only of numbers (in addition to utilizing proper query parameterization).</p>
+<p><strong>Semantic validity</strong> includes only accepting input that is within an acceptable range for the given application functionality and context. For example, a start date must be before an end date when choosing date ranges.</p>
+<h3 id="allowlisting-vs-denylisting">Allowlisting vs Denylisting</h3>
+<p>There are two general approaches to performing input syntax validation, commonly known as allow and deny lists:</p>
+<ul>
+<li><strong>Denylisting</strong> or <strong>denylist validation</strong>* attempts to check that given data does not contain "known bad" content. For example, a web application may block input that contains the exact text <code>&lt;SCRIPT&gt;</code> in order to help prevent XSS. However, this defense could be evaded with a lower case script tag or a script tag of mixed case.</li>
+<li><strong>Allowlisting</strong> or <strong>allowlist</strong> validation attempts to check that a given data matches a set of "known good" rules. For example a allowlist validation rule for a US state would be a 2-letter code that is only one of the valid US states.</li>
+</ul>
+<p><strong>Important</strong>
+When building secure software, allowlisting is the recommended minimal approach. Denylisting is prone to error and can be bypassed with various evasion techniques and can be dangerous when depended on by itself. Even though denylisting can often be evaded, it can often be useful to help detect obvious attacks. So while <strong>allowlisting</strong> helps limit the attack surface by ensuring data is of the right syntactic and semantic validity, <strong>denylisting</strong> helps detect and potentially stop obvious attacks.</p>
+<h3 id="client-side-and-server-side-validation">Client side and Server side Validation</h3>
+<p>Input validation must always be done on the server-side for security. While client side validation can be useful for both functional and some security purposes, it can often be easily bypassed. This makes server-side validation even more fundamental to security. For example, JavaScript validation may alert the user that a particular field must consist of numbers but the server side application must validate that the submitted data only consists of numbers in the appropriate numerical range for that feature.</p>
+<h3 id="regular-expressions">Regular Expressions</h3>
+<p>Regular expressions offer a way to check whether data matches a specific pattern. Let’s start with a basic example.</p>
+<p>The following regular expression is used to define a allowlist rule to validate usernames.</p>
+<div class="language-text highlight"><pre><span></span><code>^[a-z0-9_]{3,16}$
+</code></pre></div>
+<p>This regular expression allows only lowercase letters, numbers and the underscore character. The username is also restricted to a length of 3 and 16 characters.</p>
+<p><strong>Caution: Potential for Denial of Service</strong></p>
+<p>Care should be exercised when creating regular expressions. Poorly designed expressions may result in potential denial of service conditions (aka <a href="https://www.owasp.org/index.php/Regular_expression_Denial_of_Service_-_ReDoS">ReDoS</a> ). Various tools can test to verify that regular expressions are not vulnerable to ReDoS.</p>
+<p><strong>Caution: Complexity</strong></p>
+<p>Regular expressions are just one way to accomplish validation. Regular expressions can be difficult to maintain or understand for some developers. Other validation alternatives involve writing validation methods programmatically which can be easier to maintain for some developers.</p>
+<h3 id="limits-of-input-validation">Limits of Input Validation</h3>
+<p><strong>Input validation does not always make data "safe" since certain forms of complex input may be "valid" but still dangerous. For example, a valid email address may contain a SQL injection attack or a valid URL may contain a Cross Site Scripting attack</strong>. Additional defenses besides input validation should always be applied to data such as query parameterization or escaping.</p>
+<h3 id="challenges-of-validating-serialized-data">Challenges of Validating Serialized Data</h3>
+<p>Some forms of input are so complex that validation can only minimally protect the application. For example, it's dangerous to deserialize untrusted data or data that can be manipulated by an attacker. The only safe architectural pattern is to not accept serialized objects from untrusted sources or to only deserialize in limited capacity for only simple data types. You should avoid processing serialized data formats and use easier to defend formats such as JSON when possible.</p>
+<p>If that is not possible then consider a series of validation defenses when processing serialized data.
+* Implement integrity checks or encryption of the serialized objects to prevent hostile object creation or data tampering.
+* Enforce strict type constraints during deserialization before object creation; typically code is expecting a definable set of classes. Bypasses to this technique have been demonstrated.
+* Isolate code that deserializes, such that it runs in very low privilege environments, such as temporary containers.
+* Log security deserialization exceptions and failures, such as where the incoming type is not the expected type, or the deserialization throws exceptions.
+* Restrict or monitor incoming and outgoing network connectivity from containers or servers that deserialize.
+* Monitor deserialization, alerting if a user deserializes constantly.</p>
+<h3 id="unexpected-user-input-mass-assignment">Unexpected User Input (Mass Assignment)</h3>
+<p>Some frameworks support automatic binding of HTTP requests parameters to server-side objects used by the application. This auto-binding feature can allow an attacker to update server-side objects that were not meant to be modified. The attacker can possibly modify their access control level or circumvent the intended business logic of the application with this feature.</p>
+<p>This attack has a number of names including: mass assignment, autobinding and object injection.</p>
+<p>As a simple example, if the user object has a field named <code>privilege</code> which specifies the user's privilege level in the application, a malicious user can look for pages where user data is modified and add <code>privilege=admin</code> to the HTTP parameters sent.  If auto-binding is enabled in an insecure fashion, the server-side object representing the user will be modified accordingly.</p>
+<p>Two approaches can be used to handle this:
+* Avoid binding input directly and use Data Transfer Objects (DTOs) instead.
+* Enable auto-binding but set up allowlist rules for each page or feature to define which fields are allowed to be auto-bound.</p>
+<p>More examples are available in the <a href="https://www.owasp.org/index.php/Mass_Assignment_Cheat_Sheet">OWASP Mass Assignment Cheat Sheet</a>.</p>
+<h3 id="validating-and-sanitizing-html">Validating and Sanitizing HTML</h3>
+<p>Consider an application that needs to accept HTML from users (via a WYSIWYG editor that represents content as HTML or features that directly accept HTML in input). In this situation validation or escaping will not help.</p>
+<ul>
+<li>Regular expressions are not expressive enough to understand the complexity of HTML5.</li>
+<li>Encoding or escaping HTML will not help since it will cause the HTML to not render properly.</li>
+</ul>
+<p>Therefore, you need a library that can parse and clean HTML formatted text. Please see the <a href="https://www.owasp.org/index.php/XSS_(Cross_Site_Scripting)_Prevention_Cheat_Sheet#RULE_.236_-_Sanitize_HTML_Markup_with_a_Library_Designed_for_the_Job">XSS Prevention Cheat Sheet on HTML Sanitization</a> for more information on HTML Sanitization.</p>
+<h3 id="validation-functionality-in-libraries-and-frameworks">Validation Functionality in Libraries and Frameworks</h3>
+<p>All languages and most frameworks provide validation libraries or functions which should be leveraged to validate data. Validation libraries typically cover common data types, length requirements, integer ranges, "is null" checks and more. Many validation libraries and frameworks allow you to define your own regular expression or logic for custom validation in a way that allows the programmer to leverage that functionality throughout your application. Examples of validation functionality include PHP’s <a href="https://secure.php.net/manual/en/filter.examples.validation.php">filter functions</a> or the <a href="http://hibernate.org/validator/">Hibernate Validator</a> for Java. Examples of HTML Sanitizers include <a href="http://edgeapi.rubyonrails.org/classes/ActionView/Helpers/SanitizeHelper.html">Ruby on Rails sanitize method</a>, <a href="https://www.owasp.org/index.php/OWASP_Java_HTML_Sanitizer_Project">OWASP Java HTML Sanitizer</a> or <a href="https://github.com/cure53/DOMPurify">DOMPurify</a>.</p>
+<h2 id="vulnerabilities-prevented">Vulnerabilities Prevented</h2>
+<ul>
+<li>Input validation reduces the attack surface of applications and can sometimes make attacks more difficult against an application.</li>
+<li>Input validation is a technique that provides security to certain forms of data, specific to certain attacks and cannot be reliably applied as a general security rule.</li>
+<li>Input validation should not be used as the primary method of preventing <a href="https://www.owasp.org/index.php/XSS_(Cross_Site_Scripting)_Prevention_Cheat_Sheet">XSS</a>, <a href="https://www.owasp.org/index.php/SQL_Injection_Prevention_Cheat_Sheet">SQL Injection</a> and other attacks.</li>
+</ul>
+<h2 id="references">References</h2>
+<ul>
+<li><a href="https://cheatsheetseries.owasp.org/cheatsheets/Input_Validation_Cheat_Sheet.html">OWASP Cheat Sheet: Input Validation</a></li>
+<li><a href="https://www.owasp.org/index.php/IOS_Developer_Cheat_Sheet#Security_Decisions_via_Untrusted_Inputs_.28M7.29">OWASP Cheat Sheet: iOS - Security Decisions via Untrusted Inputs</a></li>
+<li><a href="https://www.owasp.org/index.php/Testing_for_Input_Validation">OWASP Testing Guide: Testing for Input Validation</a></li>
+</ul>
+<h2 id="tools">Tools</h2>
+<ul>
+<li><a href="https://www.owasp.org/index.php/OWASP_Java_HTML_Sanitizer">OWASP Java HTML Sanitizer Project</a></li>
+<li><a href="http://beanvalidation.org/">Java JSR-303/JSR-349 Bean Validation</a></li>
+<li><a href="http://hibernate.org/validator/">Java Hibernate Validator</a></li>
+<li><a href="http://openjdk.java.net/jeps/290">JEP-290 Filter Incoming Serialization Data</a></li>
+<li><a href="https://commons.apache.org/proper/commons-validator/">Apache Commons Validator</a></li>
+<li>PHP’s <a href="https://secure.php.net/manual/en/book.filter.php">filter functions</a></li>
+</ul>
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+      <a href="../../../introduction/about-owasp/" class="md-nav__link">
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+    How to contribute?
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+    <li class="md-nav__item">
+      <a href="../../../about-top-10/in-the-news/" class="md-nav__link">
+        
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+  <span class="md-ellipsis">
+    In the News
+  </span>
+  
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+  
+    <li class="md-nav__item">
+      <a href="../../../about-top-10/contributors/" class="md-nav__link">
+        
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+  <span class="md-ellipsis">
+    Our Contributors
+  </span>
+  
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+  
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+  
+    <li class="md-nav__item">
+      <a href="../../../about-top-10/old-versions-and-translations/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Old Versions and Translations
+  </span>
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+      
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+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_3" >
+        
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+          <label class="md-nav__link" for="__nav_1_3" id="__nav_1_3_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    The Top 10 List
+  </span>
+  
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+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_3_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_3">
+            <span class="md-nav__icon md-icon"></span>
+            The Top 10 List
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c1-accesscontrol/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Implement Access Control
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c2-crypto/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Use Cryptography the proper way
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c3-validate-input-and-handle-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Validate all Input & Handle Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c4-secure-architecture/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Address Security from the Start
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c5-secure-by-default/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Secure By Default Configurations
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c6-use-secure-dependencies/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Keep your Components Secure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c7-implement-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c8-help-the-browser-defend-the-user/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Leverage Browser Security Features
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c9-security-logging-and-monitoring/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c10-stop-server-side-request-forgery/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Stop Server Side Request Forgery
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
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+            
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+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
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+    Top 10 2018
+  </span>
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+            Top 10 2018
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+    <li class="md-nav__item">
+      <a href="../0x01-about-owasp/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About OWASP
+  </span>
+  
+
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+    </li>
+  
+
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+              
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+  
+  
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+    <li class="md-nav__item">
+      <a href="../0x02-about-project/" class="md-nav__link">
+        
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+  <span class="md-ellipsis">
+    About Project
+  </span>
+  
+
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+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x03-about-structure/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Structure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x04-introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c1-security-requirements/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c2-leverage-security-frameworks-libraries/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c3-secure-database/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c4-encode-escape-data/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c5-validate-inputs/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+    
+  
+  
+  
+    <li class="md-nav__item md-nav__item--active">
+      
+      <input class="md-nav__toggle md-toggle" type="checkbox" id="__toc">
+      
+      
+        
+      
+      
+        <label class="md-nav__link md-nav__link--active" for="__toc">
+          
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+          <span class="md-nav__icon md-icon"></span>
+        </label>
+      
+      <a href="./" class="md-nav__link md-nav__link--active">
+        
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+      
+        
+
+<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
+  
+  
+  
+    
+  
+  
+    <label class="md-nav__title" for="__toc">
+      <span class="md-nav__icon md-icon"></span>
+      Table of contents
+    </label>
+    <ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
+      
+        <li class="md-nav__item">
+  <a href="#description" class="md-nav__link">
+    <span class="md-ellipsis">
+      Description
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#authentication-levels" class="md-nav__link">
+    <span class="md-ellipsis">
+      Authentication Levels
+    </span>
+  </a>
+  
+    <nav class="md-nav" aria-label="Authentication Levels">
+      <ul class="md-nav__list">
+        
+          <li class="md-nav__item">
+  <a href="#level-1-passwords" class="md-nav__link">
+    <span class="md-ellipsis">
+      Level 1 : Passwords
+    </span>
+  </a>
+  
+    <nav class="md-nav" aria-label="Level 1 : Passwords">
+      <ul class="md-nav__list">
+        
+          <li class="md-nav__item">
+  <a href="#password-requirements" class="md-nav__link">
+    <span class="md-ellipsis">
+      Password Requirements
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#implement-secure-password-recovery-mechanism" class="md-nav__link">
+    <span class="md-ellipsis">
+      Implement Secure Password Recovery Mechanism
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#implement-secure-password-storage" class="md-nav__link">
+    <span class="md-ellipsis">
+      Implement Secure Password Storage
+    </span>
+  </a>
+  
+</li>
+        
+      </ul>
+    </nav>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#level-2-multi-factor-authentication" class="md-nav__link">
+    <span class="md-ellipsis">
+      Level 2 : Multi-Factor Authentication
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#level-3-cryptographic-based-authentication" class="md-nav__link">
+    <span class="md-ellipsis">
+      Level 3 : Cryptographic Based Authentication
+    </span>
+  </a>
+  
+    <nav class="md-nav" aria-label="Level 3 : Cryptographic Based Authentication">
+      <ul class="md-nav__list">
+        
+          <li class="md-nav__item">
+  <a href="#session-management" class="md-nav__link">
+    <span class="md-ellipsis">
+      Session Management
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#session-generation-and-expiration" class="md-nav__link">
+    <span class="md-ellipsis">
+      Session Generation and Expiration
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#browser-cookies" class="md-nav__link">
+    <span class="md-ellipsis">
+      Browser Cookies
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#tokens" class="md-nav__link">
+    <span class="md-ellipsis">
+      Tokens
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#jwt-json-web-tokens" class="md-nav__link">
+    <span class="md-ellipsis">
+      JWT (JSON Web Tokens)
+    </span>
+  </a>
+  
+</li>
+        
+      </ul>
+    </nav>
+  
+</li>
+        
+      </ul>
+    </nav>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#vulnerabilities-prevented" class="md-nav__link">
+    <span class="md-ellipsis">
+      Vulnerabilities Prevented
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#references" class="md-nav__link">
+    <span class="md-ellipsis">
+      References
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#tools" class="md-nav__link">
+    <span class="md-ellipsis">
+      Tools
+    </span>
+  </a>
+  
+</li>
+      
+    </ul>
+  
+</nav>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c7-enforce-access-controls/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c8-protect-data-everywhere/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Protect Data Everywhere
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c9-security-logging/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c10-errors-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Handle All Errors and Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../2016/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2016
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../2014/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2014
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+  </ul>
+</nav>
+                  </div>
+                </div>
+              </div>
+            
+            
+              
+              <div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" >
+                <div class="md-sidebar__scrollwrap">
+                  <div class="md-sidebar__inner">
+                    
+
+<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
+  
+  
+  
+    
+  
+  
+    <label class="md-nav__title" for="__toc">
+      <span class="md-nav__icon md-icon"></span>
+      Table of contents
+    </label>
+    <ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
+      
+        <li class="md-nav__item">
+  <a href="#description" class="md-nav__link">
+    <span class="md-ellipsis">
+      Description
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#authentication-levels" class="md-nav__link">
+    <span class="md-ellipsis">
+      Authentication Levels
+    </span>
+  </a>
+  
+    <nav class="md-nav" aria-label="Authentication Levels">
+      <ul class="md-nav__list">
+        
+          <li class="md-nav__item">
+  <a href="#level-1-passwords" class="md-nav__link">
+    <span class="md-ellipsis">
+      Level 1 : Passwords
+    </span>
+  </a>
+  
+    <nav class="md-nav" aria-label="Level 1 : Passwords">
+      <ul class="md-nav__list">
+        
+          <li class="md-nav__item">
+  <a href="#password-requirements" class="md-nav__link">
+    <span class="md-ellipsis">
+      Password Requirements
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#implement-secure-password-recovery-mechanism" class="md-nav__link">
+    <span class="md-ellipsis">
+      Implement Secure Password Recovery Mechanism
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#implement-secure-password-storage" class="md-nav__link">
+    <span class="md-ellipsis">
+      Implement Secure Password Storage
+    </span>
+  </a>
+  
+</li>
+        
+      </ul>
+    </nav>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#level-2-multi-factor-authentication" class="md-nav__link">
+    <span class="md-ellipsis">
+      Level 2 : Multi-Factor Authentication
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#level-3-cryptographic-based-authentication" class="md-nav__link">
+    <span class="md-ellipsis">
+      Level 3 : Cryptographic Based Authentication
+    </span>
+  </a>
+  
+    <nav class="md-nav" aria-label="Level 3 : Cryptographic Based Authentication">
+      <ul class="md-nav__list">
+        
+          <li class="md-nav__item">
+  <a href="#session-management" class="md-nav__link">
+    <span class="md-ellipsis">
+      Session Management
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#session-generation-and-expiration" class="md-nav__link">
+    <span class="md-ellipsis">
+      Session Generation and Expiration
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#browser-cookies" class="md-nav__link">
+    <span class="md-ellipsis">
+      Browser Cookies
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#tokens" class="md-nav__link">
+    <span class="md-ellipsis">
+      Tokens
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#jwt-json-web-tokens" class="md-nav__link">
+    <span class="md-ellipsis">
+      JWT (JSON Web Tokens)
+    </span>
+  </a>
+  
+</li>
+        
+      </ul>
+    </nav>
+  
+</li>
+        
+      </ul>
+    </nav>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#vulnerabilities-prevented" class="md-nav__link">
+    <span class="md-ellipsis">
+      Vulnerabilities Prevented
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#references" class="md-nav__link">
+    <span class="md-ellipsis">
+      References
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#tools" class="md-nav__link">
+    <span class="md-ellipsis">
+      Tools
+    </span>
+  </a>
+  
+</li>
+      
+    </ul>
+  
+</nav>
+                  </div>
+                </div>
+              </div>
+            
+          
+          
+            <div class="md-content" data-md-component="content">
+              <article class="md-content__inner md-typeset">
+                
+                  
+
+  
+  
+
+
+<h1 id="c6-implement-digital-identity">C6: Implement Digital Identity</h1>
+<h2 id="description">Description</h2>
+<p>Digital Identity is the unique representation of a user (or other subject) as they engage in an online transaction. Authentication is the process of verifying that an individual or entity is who they claim to be. Session management is a process by which a server maintains the state of the users authentication so that the user may continue to use the system without re-authenticating. The <a href="https://pages.nist.gov/800-63-3/sp800-63b.html">NIST Special Publication 800-63B: Digital Identity Guidelines (Authentication and Lifecycle Management)</a> provides solid guidance on implementing digital identity, authentication and session management controls.</p>
+<p>Below are some recommendations for secure implementation.</p>
+<h2 id="authentication-levels">Authentication Levels</h2>
+<p>NIST 800-63b describes three levels of a authentication assurance called a authentication assurance level (AAL). AAL level 1 is reserved for lower-risk applications that do not contain PII or other private data. At AAL level 1 only single-factor authentication is required, typically through the use of a password.</p>
+<h3 id="level-1-passwords">Level 1 : Passwords</h3>
+<p>Passwords are really really important. We need policy, we need to store them securely, we need to sometimes allow users to reset them.</p>
+<h4 id="password-requirements">Password Requirements</h4>
+<p>Passwords should comply with the following requirements at the very least:</p>
+<ul>
+<li>be at least 8 characters in length if multi-factor authentication (MFA) and other controls are also used. If MFA is not possible, this should be increased to at least 10 characters</li>
+<li>all printing ASCII characters as well as the space character should be acceptable in memorized secrets</li>
+<li>encourage the use of long passwords and passphrases</li>
+<li>remove complexity requirements as these have been found to be of limited effectiveness. Instead, the adoption of MFA or longer password lengths is recommended</li>
+<li>ensure that passwords used are not commonly used passwords that have been already been leaked in a previous compromise.  You may choose to block the top 1000 or 10000 most common passwords which meet the above length requirements and are found in compromised password lists. The following link contains the most commonly found passwords: <a href="https://github.com/danielmiessler/SecLists/tree/master/Passwords">https://github.com/danielmiessler/SecLists/tree/master/Passwords</a>.</li>
+</ul>
+<h4 id="implement-secure-password-recovery-mechanism">Implement Secure Password Recovery Mechanism</h4>
+<p>It is common for an application to have a mechanism for a user to gain access to their account in the event they forget their password. A good design workflow for a password recovery feature will use multi-factor authentication elements. For example, it may ask a security question - something they know, and then send a generated token to a device - something they own.</p>
+<p>Please see the <a href="https://www.owasp.org/index.php/Forgot_Password_Cheat_Sheet">Forgot Password Cheat Sheet</a> and <a href="https://www.owasp.org/index.php/Choosing_and_Using_Security_Questions_Cheat_Sheet">Choosing and Using Security Questions Cheat Sheet</a> for further details.</p>
+<h4 id="implement-secure-password-storage">Implement Secure Password Storage</h4>
+<p>In order to provide strong authentication controls, an application must securely store user credentials. Furthermore, cryptographic controls should be in place such that if a credential (e.g., a password) is compromised, the attacker does not immediately have access to this information.</p>
+<p><strong>PHP Example for Password Storage</strong></p>
+<p>Below is an example for secure password hashing in PHP using <code>password_hash()</code> function (available since 5.5.0) which defaults to using the bcrypt algorithm. The example uses a work factor of 15.</p>
+<div class="language-text highlight"><pre><span></span><code>&lt;?php
+ $cost = 15;
+ $password_hash = password_hash(&quot;secret_password&quot;, PASSWORD_DEFAULT,[&quot;cost&quot; =&gt; $cost]);
+?&gt;
+</code></pre></div>
+<p>Please see the <a href="https://www.owasp.org/index.php/Password_Storage_Cheat_Sheet">OWASP Password Storage Cheat Sheet</a> for further details.</p>
+<h3 id="level-2-multi-factor-authentication">Level 2 : Multi-Factor Authentication</h3>
+<p>NIST 800-63b AAL level 2 is reserved for higher-risk applications that contain "self-asserted PII or other personal information made available online." At AAL level 2 multi-factor authentication is required including OTP or other forms of multi-factor implementation.</p>
+<p>Multi-factor authentication (MFA) ensures that users are who they claim to be by requiring them to identify themselves with a combination of:
+* Something you know – password or PIN
+* Something you own – token or phone
+* Something you are – biometrics, such as a fingerprint</p>
+<p>Using passwords as a sole factor provides weak security. Multi-factor solutions provide a more robust solution by requiring an attacker to acquire more than one element to authenticate with the service.</p>
+<p>It is worth noting that biometrics, when employed as a single factor of authentication, are not considered acceptable secrets for digital authentication. They can be obtained online or by taking a picture of someone with a camera phone (e.g., facial images) with or without their knowledge, lifted from objects someone touches (e.g., latent fingerprints), or captured with high resolution images (e.g., iris patterns). Biometrics must be used only as part of multi-factor authentication with a physical authenticator (something you own). For example, accessing a multi-factor one-time password (OTP) device that will generate a one-time password that the user manually enters for the verifier.</p>
+<h3 id="level-3-cryptographic-based-authentication">Level 3 : Cryptographic Based Authentication</h3>
+<p>NIST 800-63b Authentication Assurance Level 3 (AAL3) is required when the impact of compromised systems could lead to personal harm, significant financial loss, harm the public interest or involve civil or criminal violations. AAL3 requires authentication that is "based on proof of possession of a key through a cryptographic protocol." This type of authentication is used to achieve the strongest level of authentication assurance. This is typically done though hardware cryptographic modules.</p>
+<h4 id="session-management">Session Management</h4>
+<p>Once the initial successful user authentication has taken place, an application may choose to track and maintain this authentication state for a limited amount of time. This will allow the user to continue using the application without having to keep re-authentication with each request. Tracking of this user state is called Session Management.</p>
+<h4 id="session-generation-and-expiration">Session Generation and Expiration</h4>
+<p>User state is tracked in a session. This session is typically stored on the server for traditional web based session management. A session identifier is then given to the user so the user can identify which server-side session contains the correct user data. The client only needs to maintain this session identifier, which also keeps sensitive server-side session data off of the client.</p>
+<p>Here are a few controls to consider when building or implementing session management solutions:</p>
+<ul>
+<li>Ensure that the session id is long, unique and random.</li>
+<li>The application should generate a new session or at least rotate the session id during authentication and re-authentication.</li>
+<li>The application should implement an idle timeout after a period of inactivity and an absolute maximum lifetime for each session, after which users must re-authenticate. The length of the timeouts should be inversely proportional with the value of the data protected.</li>
+</ul>
+<p>Please see the <a href="https://www.owasp.org/index.php/Session_Management_Cheat_Sheet">Session Management Cheat Sheet</a> further details. ASVS Section 3 covers additional session management requirements.</p>
+<h4 id="browser-cookies">Browser Cookies</h4>
+<p>Browser cookies are a common method for web application to store session identifiers for web applications implementing standard session management techniques. Here are some defenses to consider when using browser cookies.</p>
+<ul>
+<li>When browser cookies are used as the mechanism for tracking the session of an authenticated user,  these should be accessible to a minimum set of domains and paths and should be tagged to expire at, or soon after, the session's validity period.</li>
+<li>The 'secure' flag should be set to ensure the transfer is done via secure channel only (TLS).</li>
+<li>HttpOnly flag should be set to prevent the cookie from  being accessed via JavaScript.</li>
+<li>Adding "<a href="https://www.owasp.org/index.php/SameSite">SameSite</a>" attributes to cookies prevents some <a href="https://caniuse.com/#search=samesite">modern browsers</a> from sending cookies with cross-site requests and provides protection against cross-site request forgery and information leakage attacks.</li>
+</ul>
+<h4 id="tokens">Tokens</h4>
+<p>Server-side sessions can be limiting for some forms of authentication. "Stateless services" allow for client side management of session data for performance purposes so they server has less of a burden to store and verify user session. These "stateless" applications generate a short-lived access token which can be used to authenticate a client request without sending the user's credentials after the initial authentication.</p>
+<h4 id="jwt-json-web-tokens">JWT (JSON Web Tokens)</h4>
+<p>JSON Web Token (JWT) is an open standard (<a href="https://tools.ietf.org/html/rfc7519">RFC 7519</a>) that defines a compact and self-contained way for securely transmitting information between parties as a JSON object. This information can be verified and trusted because it is digitally signed. A JWT token is created during authentication and is verified by the server (or servers) before any processing.</p>
+<p>However, JWT's are often not saved by the server after initial creation. JWT's are typically created and then handed to a client without being saved by the server in any way. The integrity of the token is maintained through the use of digital signatures so a server can later verify that the JWT is still valid and was not tampered with since its creation.</p>
+<p>This approach is both stateless and portable in the way that client and server technologies can be different yet still interact.</p>
+<p><strong>Caution</strong></p>
+<p>Digital identity, authentication and session management are very big topics. We're scratching the surface of the topic of Digital Identity here. Ensure that your most capable engineering talent is responsible for maintaining the complexity involved with most Identity solutions.</p>
+<h2 id="vulnerabilities-prevented">Vulnerabilities Prevented</h2>
+<ul>
+<li><a href="https://www.owasp.org/index.php/Top_10-2017_A2-Broken_Authentication">OWASP Top 10 2017 A2- Broken Authentication and Session Management</a></li>
+<li><a href="https://www.owasp.org/index.php/Mobile_Top_10_2014-M5">OWASP Mobile Top 10 2014-M5- Poor Authorization and Authentication</a></li>
+</ul>
+<h2 id="references">References</h2>
+<ul>
+<li><a href="https://www.owasp.org/index.php/Authentication_Cheat_Sheet">OWASP Cheat Sheet: Authentication</a></li>
+<li><a href="https://www.owasp.org/index.php/Password_Storage_Cheat_Sheet">OWASP Cheat Sheet: Password Storage</a></li>
+<li><a href="https://www.owasp.org/index.php/Password_Storage_Cheat_Sheet">OWASP Cheat Sheet: Forgot Password</a></li>
+<li><a href="https://www.owasp.org/index.php/Choosing_and_Using_Security_Questions_Cheat_Sheet">OWASP Cheat Sheet: Choosing and Using Security Questions</a></li>
+<li><a href="https://www.owasp.org/index.php/Session_Management_Cheat_Sheet">OWASP Cheat Sheet: Session Management</a></li>
+<li><a href="https://www.owasp.org/index.php/IOS_Developer_Cheat_Sheet">OWASP Cheat Sheet: IOS Developer</a></li>
+<li><a href="https://www.owasp.org/index.php/Testing_for_authentication">OWASP Testing Guide: Testing for Authentication</a></li>
+<li><a href="https://pages.nist.gov/800-63-3/sp800-63-3.html">NIST Special Publication 800-63 Revision 3 - Digital Identity Guidelines</a></li>
+</ul>
+<h2 id="tools">Tools</h2>
+<ul>
+<li>Daniel Miessler: <a href="https://github.com/danielmiessler/SecLists/tree/master/Passwords">Most commonly found passwords</a></li>
+</ul>
+
+
+
+
+
+
+
+  
+  
+
+
+
+  
+
+
+
+
+                
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+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1">
+            <span class="md-nav__icon md-icon"></span>
+            Current Top 10 (WIP, 2024)
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    
+    
+    
+      
+      
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_1" >
+        
+          
+          <label class="md-nav__link" for="__nav_1_1" id="__nav_1_1_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_1_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_1">
+            <span class="md-nav__icon md-icon"></span>
+            Introduction
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../.." class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About this Project
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../introduction/about-owasp/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About OWASP
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../introduction/contributing/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    How to contribute?
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../introduction/related-owasp-projects/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Related OWASP Projects
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    
+    
+    
+      
+      
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_2" >
+        
+          
+          <label class="md-nav__link" for="__nav_1_2" id="__nav_1_2_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    About the Top 10
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_2">
+            <span class="md-nav__icon md-icon"></span>
+            About the Top 10
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../about-top-10/in-the-news/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    In the News
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../about-top-10/contributors/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Our Contributors
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../about-top-10/old-versions-and-translations/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Old Versions and Translations
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    
+    
+    
+      
+      
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_3" >
+        
+          
+          <label class="md-nav__link" for="__nav_1_3" id="__nav_1_3_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    The Top 10 List
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_3_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_3">
+            <span class="md-nav__icon md-icon"></span>
+            The Top 10 List
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c1-accesscontrol/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Implement Access Control
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c2-crypto/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Use Cryptography the proper way
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c3-validate-input-and-handle-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Validate all Input & Handle Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c4-secure-architecture/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Address Security from the Start
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c5-secure-by-default/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Secure By Default Configurations
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c6-use-secure-dependencies/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Keep your Components Secure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c7-implement-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c8-help-the-browser-defend-the-user/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Leverage Browser Security Features
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c9-security-logging-and-monitoring/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c10-stop-server-side-request-forgery/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Stop Server Side Request Forgery
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+    
+  
+  
+  
+    
+    
+    
+      
+        
+        
+      
+      
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" checked>
+        
+          
+          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="">
+            
+  
+  <span class="md-ellipsis">
+    Top 10 2018
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="true">
+          <label class="md-nav__title" for="__nav_2">
+            <span class="md-nav__icon md-icon"></span>
+            Top 10 2018
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x01-about-owasp/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About OWASP
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x02-about-project/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Project
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x03-about-structure/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Structure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x04-introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c1-security-requirements/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c2-leverage-security-frameworks-libraries/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c3-secure-database/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c4-encode-escape-data/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c5-validate-inputs/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c6-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+    
+  
+  
+  
+    <li class="md-nav__item md-nav__item--active">
+      
+      <input class="md-nav__toggle md-toggle" type="checkbox" id="__toc">
+      
+      
+        
+      
+      
+        <label class="md-nav__link md-nav__link--active" for="__toc">
+          
+  
+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
+
+          <span class="md-nav__icon md-icon"></span>
+        </label>
+      
+      <a href="./" class="md-nav__link md-nav__link--active">
+        
+  
+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
+
+      </a>
+      
+        
+
+<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
+  
+  
+  
+    
+  
+  
+    <label class="md-nav__title" for="__toc">
+      <span class="md-nav__icon md-icon"></span>
+      Table of contents
+    </label>
+    <ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
+      
+        <li class="md-nav__item">
+  <a href="#description" class="md-nav__link">
+    <span class="md-ellipsis">
+      Description
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#access-control-design-principles" class="md-nav__link">
+    <span class="md-ellipsis">
+      Access Control Design Principles
+    </span>
+  </a>
+  
+    <nav class="md-nav" aria-label="Access Control Design Principles">
+      <ul class="md-nav__list">
+        
+          <li class="md-nav__item">
+  <a href="#1-design-access-control-thoroughly-up-front" class="md-nav__link">
+    <span class="md-ellipsis">
+      1) Design Access Control Thoroughly Up Front
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#2-force-all-requests-to-go-through-access-control-checks" class="md-nav__link">
+    <span class="md-ellipsis">
+      2) Force All Requests to Go Through Access Control Checks
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#3-deny-by-default" class="md-nav__link">
+    <span class="md-ellipsis">
+      3) Deny by Default
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#4-principle-of-least-privilege" class="md-nav__link">
+    <span class="md-ellipsis">
+      4) Principle of Least Privilege
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#5-dont-hardcode-roles" class="md-nav__link">
+    <span class="md-ellipsis">
+      5) Don't Hardcode Roles
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#6-log-all-access-control-events" class="md-nav__link">
+    <span class="md-ellipsis">
+      6) Log All Access Control Events
+    </span>
+  </a>
+  
+</li>
+        
+      </ul>
+    </nav>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#vulnerabilities-prevented" class="md-nav__link">
+    <span class="md-ellipsis">
+      Vulnerabilities Prevented
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#references" class="md-nav__link">
+    <span class="md-ellipsis">
+      References
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#tools" class="md-nav__link">
+    <span class="md-ellipsis">
+      Tools
+    </span>
+  </a>
+  
+</li>
+      
+    </ul>
+  
+</nav>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c8-protect-data-everywhere/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Protect Data Everywhere
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c9-security-logging/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c10-errors-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Handle All Errors and Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../2016/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2016
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../2014/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2014
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+  </ul>
+</nav>
+                  </div>
+                </div>
+              </div>
+            
+            
+              
+              <div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" >
+                <div class="md-sidebar__scrollwrap">
+                  <div class="md-sidebar__inner">
+                    
+
+<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
+  
+  
+  
+    
+  
+  
+    <label class="md-nav__title" for="__toc">
+      <span class="md-nav__icon md-icon"></span>
+      Table of contents
+    </label>
+    <ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
+      
+        <li class="md-nav__item">
+  <a href="#description" class="md-nav__link">
+    <span class="md-ellipsis">
+      Description
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#access-control-design-principles" class="md-nav__link">
+    <span class="md-ellipsis">
+      Access Control Design Principles
+    </span>
+  </a>
+  
+    <nav class="md-nav" aria-label="Access Control Design Principles">
+      <ul class="md-nav__list">
+        
+          <li class="md-nav__item">
+  <a href="#1-design-access-control-thoroughly-up-front" class="md-nav__link">
+    <span class="md-ellipsis">
+      1) Design Access Control Thoroughly Up Front
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#2-force-all-requests-to-go-through-access-control-checks" class="md-nav__link">
+    <span class="md-ellipsis">
+      2) Force All Requests to Go Through Access Control Checks
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#3-deny-by-default" class="md-nav__link">
+    <span class="md-ellipsis">
+      3) Deny by Default
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#4-principle-of-least-privilege" class="md-nav__link">
+    <span class="md-ellipsis">
+      4) Principle of Least Privilege
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#5-dont-hardcode-roles" class="md-nav__link">
+    <span class="md-ellipsis">
+      5) Don't Hardcode Roles
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#6-log-all-access-control-events" class="md-nav__link">
+    <span class="md-ellipsis">
+      6) Log All Access Control Events
+    </span>
+  </a>
+  
+</li>
+        
+      </ul>
+    </nav>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#vulnerabilities-prevented" class="md-nav__link">
+    <span class="md-ellipsis">
+      Vulnerabilities Prevented
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#references" class="md-nav__link">
+    <span class="md-ellipsis">
+      References
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#tools" class="md-nav__link">
+    <span class="md-ellipsis">
+      Tools
+    </span>
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+</li>
+      
+    </ul>
+  
+</nav>
+                  </div>
+                </div>
+              </div>
+            
+          
+          
+            <div class="md-content" data-md-component="content">
+              <article class="md-content__inner md-typeset">
+                
+                  
+
+  
+  
+
+
+<h1 id="c7-enforce-access-controls">C7: Enforce Access Controls</h1>
+<h2 id="description">Description</h2>
+<p>Access Control (or Authorization) is the process of granting or denying <em>specific requests</em> from a user, program, or process. Access control also involves the act of <em>granting and revoking those privileges</em>.</p>
+<p>It should be noted that authorization (verifying access to specific features or resources) is not equivalent to authentication (verifying identity).</p>
+<p>Access Control functionality often spans many areas of software depending on the complexity of the access control system. For example, managing access control metadata or building caching for scalability purposes are often additional components in an access control system that need to be built or managed.
+There are several different types of access control design that should be considered.</p>
+<ul>
+<li>Discretionary Access Control (DAC) is a means of restricting access to objects (e.g., files, data entities) based on the identity and need-to-know of subjects (e.g., users, processes) and/or groups to which the object belongs.</li>
+<li>Mandatory Access Control (MAC) is a means of restricting access to system resources based on the sensitivity (as represented by a label) of the information contained in the system resource and the formal authorization (i.e., clearance) of users to access information of such sensitivity.</li>
+<li>Role Based Access Control (RBAC) is a model for controlling access to resources where permitted actions on resources are identified with roles rather than with individual subject identities.</li>
+<li>Attribute Based Access Control (ABAC) will grant or deny user requests based on arbitrary attributes of the user and arbitrary attributes of the object, and environment conditions that may be globally recognized and more relevant to the policies at hand.</li>
+</ul>
+<h2 id="access-control-design-principles">Access Control Design Principles</h2>
+<p>The following "positive" access control design requirements should be considered at the initial stages of application development. </p>
+<h3 id="1-design-access-control-thoroughly-up-front">1) Design Access Control Thoroughly Up Front</h3>
+<p>Once you have chosen a specific access control design pattern, it is often difficult and time consuming to re-engineer access control in your application with a new pattern. Access Control is one of the main areas of application security design that must be thoroughly designed up front, especially when addressing requirements like multi-tenancy and horizontal (data dependent) access control.</p>
+<p>Access Control design may start simple but can often grow into a complex and feature-heavy security control. When evaluating access control capability of software frameworks, ensure that your access control functionality will allow for customization for your specific access control feature need.</p>
+<h3 id="2-force-all-requests-to-go-through-access-control-checks">2) Force All Requests to Go Through Access Control Checks</h3>
+<p>Ensure that all request go through some kind of access control verification layer. Technologies like Java filters or other automatic request processing mechanisms are ideal programming artifacts that will help ensure that all requests go through some kind of access control check.</p>
+<h3 id="3-deny-by-default">3) Deny by Default</h3>
+<p>Deny by default is the principle that if a request is not specifically allowed, it is denied. There are many ways that this rule will manifest in application code. Some examples of these are:</p>
+<ol>
+<li>Application code may throw an error or exception while processing access control requests. In these cases access control should always be denied.</li>
+<li>When an administrator creates a new user or a user registers for a new account, that account should have minimal or no access by default until that access is configured.</li>
+<li>When a new feature is added to an application all users should be denied to use that feature until it's properly configured.</li>
+</ol>
+<h3 id="4-principle-of-least-privilege">4) Principle of Least Privilege</h3>
+<p>Ensure that all users, programs, or processes are only given as least or as little necessary access as possible. Be wary of systems that do not provide granular access control configuration capabilities.</p>
+<h3 id="5-dont-hardcode-roles">5) Don't Hardcode Roles</h3>
+<p>Many application frameworks default to access control that is role based. It is common to find application code that is filled with checks of this nature.
+<div class="language-text highlight"><pre><span></span><code><span id="__span-0-1"><a id="__codelineno-0-1" name="__codelineno-0-1" href="#__codelineno-0-1"></a>    if (user.hasRole(&quot;ADMIN&quot;)) || (user.hasRole(&quot;MANAGER&quot;)) {
+</span><span id="__span-0-2"><a id="__codelineno-0-2" name="__codelineno-0-2" href="#__codelineno-0-2"></a>        deleteAccount();
+</span><span id="__span-0-3"><a id="__codelineno-0-3" name="__codelineno-0-3" href="#__codelineno-0-3"></a>    }
+</span></code></pre></div>
+Be careful about this type of role-based programming in code. It has the following limitations or dangers.
+* Role based programming of this nature is fragile. It is easy to create incorrect or missing role checks in code.
+* Role based programming does not allow for multi-tenancy. Extreme measures like forking the code or added checks for each customer will be required to allow role based systems to have different rules for different customers.
+* Role based programming does not allow for data-specific or horizontal access control rules.
+* Large codebases with many access control checks can be difficult to audit or verify the overall application access control policy.</p>
+<p>Instead, please consider the following access control programming methodology:</p>
+<div class="language-text highlight"><pre><span></span><code><span id="__span-1-1"><a id="__codelineno-1-1" name="__codelineno-1-1" href="#__codelineno-1-1"></a>    if (user.hasAccess(&quot;DELETE_ACCOUNT&quot;)) {
+</span><span id="__span-1-2"><a id="__codelineno-1-2" name="__codelineno-1-2" href="#__codelineno-1-2"></a>        deleteAccount();
+</span><span id="__span-1-3"><a id="__codelineno-1-3" name="__codelineno-1-3" href="#__codelineno-1-3"></a>    }
+</span></code></pre></div>
+<p>Attribute or feature-based access control checks of this nature are the starting point to building well-designed and feature-rich access control systems. This type of programming also allows for greater access control customization capability over time.</p>
+<h3 id="6-log-all-access-control-events">6) Log All Access Control Events</h3>
+<p>All access control failures should be logged as these may be indicative of a malicious user probing the application for vulnerabilities.</p>
+<h2 id="vulnerabilities-prevented">Vulnerabilities Prevented</h2>
+<ul>
+<li><a href="https://www.owasp.org/index.php/Top_10-2017_A5-Broken_Access_Control">OWASP Top 10 2017-A5-Broken Access Control</a></li>
+<li><a href="https://www.owasp.org/index.php/Mobile_Top_10_2014-M5">OWASP Mobile Top 10 2014-M5 Poor Authorization and Authentication</a></li>
+</ul>
+<h2 id="references">References</h2>
+<ul>
+<li><a href="https://www.owasp.org/index.php/Access_Control_Cheat_Sheet">OWASP Cheat Sheet: Access Control</a></li>
+<li><a href="https://www.owasp.org/index.php/IOS_Developer_Cheat_Sheet#Remediations_5">OWASP Cheat Sheet:  iOS Developer - Poor Authorization and Authentication</a></li>
+<li><a href="https://www.owasp.org/index.php/Testing_for_Authorization">OWASP Testing Guide: Testing for Authorization</a></li>
+</ul>
+<h2 id="tools">Tools</h2>
+<ul>
+<li><a href="https://www.owasp.org/index.php/ZAP">OWASP ZAP</a> with the optional <a href="https://github.com/zaproxy/zap-extensions/wiki/HelpAddonsAccessControlConcepts">Access Control Testing</a> add-on</li>
+</ul>
+
+
+
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+    Current Top 10 (WIP, 2024)
+  </span>
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+            
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+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
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+          </label>
+        
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+          <label class="md-nav__title" for="__nav_1_1">
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+            Introduction
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
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+  
+  
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+  
+    <li class="md-nav__item">
+      <a href="../../.." class="md-nav__link">
+        
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+  <span class="md-ellipsis">
+    About this Project
+  </span>
+  
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+  
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+  
+    <li class="md-nav__item">
+      <a href="../../../introduction/about-owasp/" class="md-nav__link">
+        
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+  <span class="md-ellipsis">
+    About OWASP
+  </span>
+  
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+    </li>
+  
+
+              
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+  
+  
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+  
+    <li class="md-nav__item">
+      <a href="../../../introduction/contributing/" class="md-nav__link">
+        
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+  <span class="md-ellipsis">
+    How to contribute?
+  </span>
+  
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+    <li class="md-nav__item">
+      <a href="../../../introduction/related-owasp-projects/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Related OWASP Projects
+  </span>
+  
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+  
+
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+        </nav>
+      
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+  
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+            
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+  <span class="md-ellipsis">
+    About the Top 10
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+          <label class="md-nav__title" for="__nav_1_2">
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+            About the Top 10
+          </label>
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+            
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+      <a href="../../../about-top-10/in-the-news/" class="md-nav__link">
+        
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+  <span class="md-ellipsis">
+    In the News
+  </span>
+  
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+    <li class="md-nav__item">
+      <a href="../../../about-top-10/contributors/" class="md-nav__link">
+        
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+  <span class="md-ellipsis">
+    Our Contributors
+  </span>
+  
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+  
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+    <li class="md-nav__item">
+      <a href="../../../about-top-10/old-versions-and-translations/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Old Versions and Translations
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+      
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+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_3" >
+        
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+          <label class="md-nav__link" for="__nav_1_3" id="__nav_1_3_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    The Top 10 List
+  </span>
+  
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+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_3_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_3">
+            <span class="md-nav__icon md-icon"></span>
+            The Top 10 List
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
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+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c1-accesscontrol/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Implement Access Control
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c2-crypto/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Use Cryptography the proper way
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c3-validate-input-and-handle-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Validate all Input & Handle Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c4-secure-architecture/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Address Security from the Start
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c5-secure-by-default/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Secure By Default Configurations
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c6-use-secure-dependencies/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Keep your Components Secure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c7-implement-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c8-help-the-browser-defend-the-user/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Leverage Browser Security Features
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c9-security-logging-and-monitoring/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c10-stop-server-side-request-forgery/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Stop Server Side Request Forgery
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
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+  
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+  
+    <li class="md-nav__item">
+      <a href="../../../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
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+    </li>
+  
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+        </nav>
+      
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+  
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+    
+    
+      
+        
+        
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+      
+        
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+    
+    <li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
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+        
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+            
+  
+  <span class="md-ellipsis">
+    Top 10 2018
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="true">
+          <label class="md-nav__title" for="__nav_2">
+            <span class="md-nav__icon md-icon"></span>
+            Top 10 2018
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x01-about-owasp/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About OWASP
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x02-about-project/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Project
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x03-about-structure/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Structure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x04-introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c1-security-requirements/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c2-leverage-security-frameworks-libraries/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c3-secure-database/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c4-encode-escape-data/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c5-validate-inputs/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c6-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c7-enforce-access-controls/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+    
+  
+  
+  
+    <li class="md-nav__item md-nav__item--active">
+      
+      <input class="md-nav__toggle md-toggle" type="checkbox" id="__toc">
+      
+      
+        
+      
+      
+        <label class="md-nav__link md-nav__link--active" for="__toc">
+          
+  
+  <span class="md-ellipsis">
+    C8: Protect Data Everywhere
+  </span>
+  
+
+          <span class="md-nav__icon md-icon"></span>
+        </label>
+      
+      <a href="./" class="md-nav__link md-nav__link--active">
+        
+  
+  <span class="md-ellipsis">
+    C8: Protect Data Everywhere
+  </span>
+  
+
+      </a>
+      
+        
+
+<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
+  
+  
+  
+    
+  
+  
+    <label class="md-nav__title" for="__toc">
+      <span class="md-nav__icon md-icon"></span>
+      Table of contents
+    </label>
+    <ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
+      
+        <li class="md-nav__item">
+  <a href="#description" class="md-nav__link">
+    <span class="md-ellipsis">
+      Description
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#data-classification" class="md-nav__link">
+    <span class="md-ellipsis">
+      Data Classification
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#encrypting-data-in-transit" class="md-nav__link">
+    <span class="md-ellipsis">
+      Encrypting Data in Transit
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#encrypting-data-at-rest" class="md-nav__link">
+    <span class="md-ellipsis">
+      Encrypting Data at Rest
+    </span>
+  </a>
+  
+    <nav class="md-nav" aria-label="Encrypting Data at Rest">
+      <ul class="md-nav__list">
+        
+          <li class="md-nav__item">
+  <a href="#mobile-application-secure-local-storage" class="md-nav__link">
+    <span class="md-ellipsis">
+      Mobile Application: Secure Local Storage
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#secret-lifecycle" class="md-nav__link">
+    <span class="md-ellipsis">
+      Secret Lifecycle
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#secret-datatype" class="md-nav__link">
+    <span class="md-ellipsis">
+      Secret Datatype
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#application-secrets-management" class="md-nav__link">
+    <span class="md-ellipsis">
+      Application Secrets Management
+    </span>
+  </a>
+  
+</li>
+        
+      </ul>
+    </nav>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#vulnerabilities-prevented" class="md-nav__link">
+    <span class="md-ellipsis">
+      Vulnerabilities Prevented
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#references" class="md-nav__link">
+    <span class="md-ellipsis">
+      References
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#tools" class="md-nav__link">
+    <span class="md-ellipsis">
+      Tools
+    </span>
+  </a>
+  
+</li>
+      
+    </ul>
+  
+</nav>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c9-security-logging/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c10-errors-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Handle All Errors and Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../2016/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2016
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../2014/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2014
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+  </ul>
+</nav>
+                  </div>
+                </div>
+              </div>
+            
+            
+              
+              <div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" >
+                <div class="md-sidebar__scrollwrap">
+                  <div class="md-sidebar__inner">
+                    
+
+<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
+  
+  
+  
+    
+  
+  
+    <label class="md-nav__title" for="__toc">
+      <span class="md-nav__icon md-icon"></span>
+      Table of contents
+    </label>
+    <ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
+      
+        <li class="md-nav__item">
+  <a href="#description" class="md-nav__link">
+    <span class="md-ellipsis">
+      Description
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#data-classification" class="md-nav__link">
+    <span class="md-ellipsis">
+      Data Classification
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#encrypting-data-in-transit" class="md-nav__link">
+    <span class="md-ellipsis">
+      Encrypting Data in Transit
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#encrypting-data-at-rest" class="md-nav__link">
+    <span class="md-ellipsis">
+      Encrypting Data at Rest
+    </span>
+  </a>
+  
+    <nav class="md-nav" aria-label="Encrypting Data at Rest">
+      <ul class="md-nav__list">
+        
+          <li class="md-nav__item">
+  <a href="#mobile-application-secure-local-storage" class="md-nav__link">
+    <span class="md-ellipsis">
+      Mobile Application: Secure Local Storage
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#secret-lifecycle" class="md-nav__link">
+    <span class="md-ellipsis">
+      Secret Lifecycle
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#secret-datatype" class="md-nav__link">
+    <span class="md-ellipsis">
+      Secret Datatype
+    </span>
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#application-secrets-management" class="md-nav__link">
+    <span class="md-ellipsis">
+      Application Secrets Management
+    </span>
+  </a>
+  
+</li>
+        
+      </ul>
+    </nav>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#vulnerabilities-prevented" class="md-nav__link">
+    <span class="md-ellipsis">
+      Vulnerabilities Prevented
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#references" class="md-nav__link">
+    <span class="md-ellipsis">
+      References
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#tools" class="md-nav__link">
+    <span class="md-ellipsis">
+      Tools
+    </span>
+  </a>
+  
+</li>
+      
+    </ul>
+  
+</nav>
+                  </div>
+                </div>
+              </div>
+            
+          
+          
+            <div class="md-content" data-md-component="content">
+              <article class="md-content__inner md-typeset">
+                
+                  
+
+  
+  
+
+
+<h1 id="c8-protect-data-everywhere">C8: Protect Data Everywhere</h1>
+<h2 id="description">Description</h2>
+<p>Sensitive data such as passwords, credit card numbers, health records, personal information and business secrets require extra protection, particularly if that data falls under privacy laws (EU's General Data Protection Regulation GDPR), financial data protection rules such as PCI Data Security Standard (PCI DSS) or other regulations.</p>
+<p>Attackers can steal data from web and webservice applications in a number of ways. For example, if sensitive information in sent over the internet  without communications security, then an attacker on a shared wireless connection could see and steal another user's data. Also, an attacker could use SQL Injection to steal passwords and other credentials from an applications database and expose that information to the public.</p>
+<h2 id="data-classification">Data Classification</h2>
+<p>It's critical to classify data in your system and determine which level of sensitivity each piece of data belongs to. Each data category can then be mapped to protection rules necessary for each level of sensitivity. For example, public marketing information that is not sensitive may be categorized as public data which is ok to place on the public website. Credit card numbers may be classified as private user data which may need to be encrypted while stored or in transit.</p>
+<h2 id="encrypting-data-in-transit">Encrypting Data in Transit</h2>
+<p>When transmitting sensitive data over any network, end-to-end communications security (or encryption-in-transit) of some kind should be considered. TLS is by far the most common and widely supported cryptographic protocol for communications security. It is used by many types of applications (web, webservice, mobile) to communicate over a network in a secure fashion. TLS must be properly configured in a variety of ways in order to properly defend secure communications.</p>
+<p>The primary benefit of transport layer security is the protection of web application data from unauthorized disclosure and modification when it is transmitted between clients (web browsers) and the web application server, and between the web application server and back end and other non-browser based enterprise components.</p>
+<h2 id="encrypting-data-at-rest">Encrypting Data at Rest</h2>
+<p>The first rule of sensitive data management is to avoid storing sensitive data when at all possible. If you must store sensitive data then make sure it's cryptographically protected in some way to avoid unauthorized disclosure and modification.</p>
+<p>Cryptography (or crypto) is one of the more advanced topics of information security, and one whose understanding requires the most schooling and experience. It is difficult to get right because there are many approaches to encryption, each with advantages and disadvantages that need to be thoroughly understood by web solution architects and developers. In addition, serious cryptography research is typically based in advanced mathematics and number theory, providing a serious barrier to entry.</p>
+<p>Instead of building cryptographic capability from scratch, it is strongly recommended that peer reviewed and open solutions be used, such as the <a href="https://github.com/google/tink">Google Tink</a> project, <a href="https://www.libsodium.org">Libsodium</a>, and secure storage capability built into many software frameworks and cloud services.</p>
+<h3 id="mobile-application-secure-local-storage">Mobile Application: Secure Local Storage</h3>
+<p>Mobile applications are at particular risk of data leakage because mobile devices are regularly lost or stolen yet contain sensitive data.</p>
+<p>As a general rule, only the minimum data required should be stored on the mobile device. But if you must store sensitive data on a mobile device, then sensitive data should be stored within each mobile operating systems specific data storage directory. On Android this will be the Android keystore and on iOS this will be the iOS keychain.</p>
+<h3 id="secret-lifecycle">Secret Lifecycle</h3>
+<p>Secret keys can be used in a number of sensitive functions. For example, they can be used to sign JWTs, encrypt credit cards, sign hash, provide various forms of authentication and more. In managing keys, a number of precautious should be adhered including but not limited to the following:</p>
+<ul>
+<li>Ensure that any secret key is protected from unauthorized access</li>
+<li>Store keys in a proper secrets vault as described in <em>Application Secrets Management</em></li>
+<li>Use independent keys when multiple keys are required</li>
+<li>Build support for changing algorithms and keys when needed</li>
+<li>Build application features to handle a key rotation</li>
+</ul>
+<h3 id="secret-datatype">Secret Datatype</h3>
+<p>When an immutable datatype such as <code>string</code> is used to store secrets, secrets can remain plaintext in the memory for a long time.
+Even if you try to nullify the string value, it still remains in the memory. 
+<code>string</code> is an immutable type and cannot be changed. When you modify a string (try to overwrite it), a new copy of it is created. 
+This means another copy of the unprotected secret will remain in the memory. 
+Furthermore, there is no gurantee when garbage collector is going to clean up the secret.
+This increases exposure of plaintext secrets in the memory.</p>
+<p>If secrets remain unprotected in the memory, they can get disclosed on the disk or external log aggregators 
+through a number of scenarios: server crash logs, caching, serialisation or memory paging.</p>
+<p>A safe way to handle secret is by using <strong>Read Once</strong> pattern.
+Read once is a defensive design pattern where a value can be only accessed once. After the first read, value is cleared from memory, and subsequent access is not possible.
+For an example implementation see <a href="https://discuss.secdim.com/t/do-not-use-string-to-store-secret-it-gets-disclosed/247">this post</a>.</p>
+<h3 id="application-secrets-management">Application Secrets Management</h3>
+<p>Applications contain numerous "secrets" that are needed for security operations. These include certificates, SQL connection passwords, third party service account credentials, passwords, SSH keys, encryption keys and more. The unauthorized disclosure or modification of these secrets could lead to complete system compromise. In managing application secrets, consider the following.</p>
+<ul>
+<li>Don't store secrets in code, config files or pass them through environment variables. Use tools like <a href="https://github.com/michenriksen/gitrob">GitRob</a> or <a href="https://github.com/dxa4481/truffleHog">TruffleHog</a> to scan code repos for secrets.</li>
+<li>Keep keys and your other application-level secrets in a secrets vault like <a href="https://github.com/square/keywhiz">KeyWhiz</a> or <a href="https://www.vaultproject.io/">Hashicorp's Vault project</a> or <a href="https://aws.amazon.com/kms/">Amazon KMS</a> to provide secure storage and access to application-level secrets at run-time.</li>
+</ul>
+<h2 id="vulnerabilities-prevented">Vulnerabilities Prevented</h2>
+<ul>
+<li><a href="https://www.owasp.org/index.php/Top_10-2017_A3-Sensitive_Data_Exposure">OWASP Top 10 2017 - A3: Sensitive Data Exposure</a></li>
+<li><a href="https://owasp.org/www-project-mobile-top-10/2016-risks/m2-insecure-data-storage">OWASP Mobile Top 10 2016 -M2: Insecure Data Storage</a></li>
+</ul>
+<h2 id="references">References</h2>
+<ul>
+<li><a href="https://www.owasp.org/index.php/Transport_Layer_Protection_Cheat_Sheet">OWASP Cheat Sheet: Transport Layer Protection</a></li>
+<li><a href="https://www.ssllabs.com/projects/best-practices/index.html">Ivan Ristic: SSL/TLS Deployment Best Practices</a></li>
+<li><a href="https://www.owasp.org/index.php/HTTP_Strict_Transport_Security_Cheat_Sheet">OWASP Cheat Sheet: HSTS</a></li>
+<li><a href="https://cheatsheetseries.owasp.org/cheatsheets/Cryptographic_Storage_Cheat_Sheet.html">OWASP Cheat Sheet: Cryptographic Storage</a></li>
+<li><a href="https://www.owasp.org/index.php/Password_Storage_Cheat_Sheet">OWASP Cheat Sheet: Password Storage</a></li>
+<li><a href="https://cheatsheetseries.owasp.org/cheatsheets/Secrets_Management_CheatSheet.html">OWASP Cheat Sheet: Secrets Management</a></li>
+<li><a href="https://www.owasp.org/index.php/IOS_Developer_Cheat_Sheet#Insecure_Data_Storage_.28M1.29">OWASP Cheat Sheet: IOS Developer - Insecure Data Storage</a></li>
+<li><a href="https://owasp.org/www-project-web-security-testing-guide/v42/4-Web_Application_Security_Testing/09-Testing_for_Weak_Cryptography/01-Testing_for_Weak_Transport_Layer_Security">OWASP Testing Guide: Testing for TLS</a></li>
+<li><a href="https://discuss.secdim.com/t/do-not-use-string-to-store-secret-it-gets-disclosed/247">Do not use String to store secret. It gets disclosed</a></li>
+</ul>
+<h2 id="tools">Tools</h2>
+<ul>
+<li><a href="https://github.com/nabla-c0d3/sslyze">SSLyze</a> - SSL configuration scanning library and CLI tool</li>
+<li><a href="https://www.ssllabs.com/ssltest/">SSLLabs</a> - Free service for scanning and checking TLS/SSL configuration</li>
+<li><a href="https://www.owasp.org/index.php/O-Saft">OWASP O-Saft TLS Tool</a> - TLS connection testing tool</li>
+<li><a href="https://github.com/michenriksen/gitrob">GitRob</a> - Command line tool to find sensitive information in publicly available files on GitHub</li>
+<li><a href="https://github.com/dxa4481/truffleHog">TruffleHog</a>  - Searches for secrets accidentally committed</li>
+<li><a href="https://github.com/square/keywhiz">KeyWhiz</a> - Secrets manager</li>
+<li><a href="https://www.vaultproject.io/">Hashicorp Vault</a> - Secrets manager</li>
+<li><a href="https://aws.amazon.com/kms/">Amazon KMS</a> - Manage keys on Amazon AWS</li>
+</ul>
+
+
+
+
+
+
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+  
+  <span class="md-ellipsis">
+    Current Top 10 (WIP, 2024)
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1">
+            <span class="md-nav__icon md-icon"></span>
+            Current Top 10 (WIP, 2024)
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    
+    
+    
+      
+      
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_1" >
+        
+          
+          <label class="md-nav__link" for="__nav_1_1" id="__nav_1_1_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_1_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_1">
+            <span class="md-nav__icon md-icon"></span>
+            Introduction
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../.." class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About this Project
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../introduction/about-owasp/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About OWASP
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../introduction/contributing/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    How to contribute?
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../introduction/related-owasp-projects/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Related OWASP Projects
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    
+    
+    
+      
+      
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_2" >
+        
+          
+          <label class="md-nav__link" for="__nav_1_2" id="__nav_1_2_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    About the Top 10
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_2">
+            <span class="md-nav__icon md-icon"></span>
+            About the Top 10
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../about-top-10/in-the-news/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    In the News
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../about-top-10/contributors/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Our Contributors
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../about-top-10/old-versions-and-translations/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Old Versions and Translations
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    
+    
+    
+      
+      
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_3" >
+        
+          
+          <label class="md-nav__link" for="__nav_1_3" id="__nav_1_3_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    The Top 10 List
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_3_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_3">
+            <span class="md-nav__icon md-icon"></span>
+            The Top 10 List
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c1-accesscontrol/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Implement Access Control
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c2-crypto/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Use Cryptography the proper way
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c3-validate-input-and-handle-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Validate all Input & Handle Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c4-secure-architecture/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Address Security from the Start
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c5-secure-by-default/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Secure By Default Configurations
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c6-use-secure-dependencies/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Keep your Components Secure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c7-implement-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c8-help-the-browser-defend-the-user/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Leverage Browser Security Features
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c9-security-logging-and-monitoring/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c10-stop-server-side-request-forgery/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Stop Server Side Request Forgery
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+    
+  
+  
+  
+    
+    
+    
+      
+        
+        
+      
+      
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" checked>
+        
+          
+          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="">
+            
+  
+  <span class="md-ellipsis">
+    Top 10 2018
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="true">
+          <label class="md-nav__title" for="__nav_2">
+            <span class="md-nav__icon md-icon"></span>
+            Top 10 2018
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x01-about-owasp/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About OWASP
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x02-about-project/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Project
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x03-about-structure/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Structure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x04-introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c1-security-requirements/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c2-leverage-security-frameworks-libraries/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c3-secure-database/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c4-encode-escape-data/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c5-validate-inputs/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c6-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c7-enforce-access-controls/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c8-protect-data-everywhere/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Protect Data Everywhere
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+    
+  
+  
+  
+    <li class="md-nav__item md-nav__item--active">
+      
+      <input class="md-nav__toggle md-toggle" type="checkbox" id="__toc">
+      
+      
+        
+      
+      
+        <label class="md-nav__link md-nav__link--active" for="__toc">
+          
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+          <span class="md-nav__icon md-icon"></span>
+        </label>
+      
+      <a href="./" class="md-nav__link md-nav__link--active">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+      
+        
+
+<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
+  
+  
+  
+    
+  
+  
+    <label class="md-nav__title" for="__toc">
+      <span class="md-nav__icon md-icon"></span>
+      Table of contents
+    </label>
+    <ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
+      
+        <li class="md-nav__item">
+  <a href="#description" class="md-nav__link">
+    <span class="md-ellipsis">
+      Description
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#benefits-of-security-logging" class="md-nav__link">
+    <span class="md-ellipsis">
+      Benefits of Security Logging
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#security-logging-implementation" class="md-nav__link">
+    <span class="md-ellipsis">
+      Security Logging Implementation
+    </span>
+  </a>
+  
+    <nav class="md-nav" aria-label="Security Logging Implementation">
+      <ul class="md-nav__list">
+        
+          <li class="md-nav__item">
+  <a href="#logging-for-intrusion-detection-and-response" class="md-nav__link">
+    <span class="md-ellipsis">
+      Logging for Intrusion Detection and Response
+    </span>
+  </a>
+  
+</li>
+        
+      </ul>
+    </nav>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#secure-logging-design" class="md-nav__link">
+    <span class="md-ellipsis">
+      Secure Logging Design
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#references" class="md-nav__link">
+    <span class="md-ellipsis">
+      References
+    </span>
+  </a>
+  
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#tools" class="md-nav__link">
+    <span class="md-ellipsis">
+      Tools
+    </span>
+  </a>
+  
+</li>
+      
+    </ul>
+  
+</nav>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c10-errors-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Handle All Errors and Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../2016/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2016
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../2014/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2014
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+  </ul>
+</nav>
+                  </div>
+                </div>
+              </div>
+            
+            
+              
+              <div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" >
+                <div class="md-sidebar__scrollwrap">
+                  <div class="md-sidebar__inner">
+                    
+
+<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
+  
+  
+  
+    
+  
+  
+    <label class="md-nav__title" for="__toc">
+      <span class="md-nav__icon md-icon"></span>
+      Table of contents
+    </label>
+    <ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
+      
+        <li class="md-nav__item">
+  <a href="#description" class="md-nav__link">
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+      Description
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+</li>
+      
+        <li class="md-nav__item">
+  <a href="#benefits-of-security-logging" class="md-nav__link">
+    <span class="md-ellipsis">
+      Benefits of Security Logging
+    </span>
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+  
+</li>
+      
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+  <a href="#security-logging-implementation" class="md-nav__link">
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+      Security Logging Implementation
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+  
+    <nav class="md-nav" aria-label="Security Logging Implementation">
+      <ul class="md-nav__list">
+        
+          <li class="md-nav__item">
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+      Secure Logging Design
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+  
+</li>
+      
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+  <a href="#references" class="md-nav__link">
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+      
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+              <article class="md-content__inner md-typeset">
+                
+                  
+
+  
+  
+
+
+<h1 id="c9-implement-security-logging-and-monitoring">C9: Implement Security Logging and Monitoring</h1>
+<h2 id="description">Description</h2>
+<p>Logging is a concept that most developers already use for debugging and diagnostic purposes. Security logging is an equally basic concept: to log security information during the runtime operation of an application. Monitoring is the live review of application and security logs using various forms of automation. The same tools and patterns can be used for operations, debugging and security purposes.</p>
+<h2 id="benefits-of-security-logging">Benefits of Security Logging</h2>
+<p>Security logging can be used for:
+1. Feeding intrusion detection systems
+2. Forensic analysis and investigations
+3. Satisfying regulatory compliance requirements</p>
+<h2 id="security-logging-implementation">Security Logging Implementation</h2>
+<p>The following is a list of security logging implementation best practices.</p>
+<ul>
+<li>Follow a common logging format and approach within the system and across systems of an organization. An example of a common logging framework is the Apache Logging Services which helps provide logging consistency between Java, PHP, .NET,  and C++ applications.</li>
+<li>Do not log too much or too little. For example, make sure to always log the timestamp and identifying information including the source IP and user-id, but be careful not to log private or confidential data.</li>
+<li>Pay close attention to time syncing across nodes to ensure that timestamps are consistent.</li>
+</ul>
+<h3 id="logging-for-intrusion-detection-and-response">Logging for Intrusion Detection and Response</h3>
+<p>Use logging to identify activity that indicates that a user is behaving maliciously. Potentially malicious activity to log includes:</p>
+<ul>
+<li>Submitted data that is outside of an expected numeric range.</li>
+<li>Submitted data that involves changes to data that should not be modifiable (select list, checkbox or other limited entry component).</li>
+<li>Requests that violate server-side access control rules.</li>
+<li>A more comprehensive list of possible detection points is available <a href="https://cheatsheetseries.owasp.org/cheatsheets/Application_Logging_Vocabulary_Cheat_Sheet.html">here</a>.</li>
+</ul>
+<p>When your application encounters such activity, your application should at the very least log the activity and mark it as a high severity issue.  Ideally, your application should also respond to a possible identified attack, by for example invalidating the user’s session and locking the user's account. The response mechanisms allows the software to react in realtime to possible identified attacks. </p>
+<h2 id="secure-logging-design">Secure Logging Design</h2>
+<p>Logging solutions must be built and managed in a secure way. Secure Logging design may include the following:</p>
+<ul>
+<li>Encode and validate any dangerous characters before logging to prevent <a href="https://www.owasp.org/index.php/Log_Injection">log injection</a> attacks.</li>
+<li>Do not log sensitive information. For example, do not log password, session ID, credit cards, or social security numbers.</li>
+<li>Protect log integrity. An attacker may attempt to tamper with the logs. Therefore, the permission of log files and log changes audit should be considered.</li>
+<li>Forward logs from distributed systems to a central, secure logging service. This will ensure log data cannot be lost if one node is compromised. This also allows for centralized monitoring.</li>
+</ul>
+<h2 id="references">References</h2>
+<ul>
+<li><a href="https://www.owasp.org/index.php/Log_Injection">OWASP Log injection</a></li>
+<li><a href="https://cheatsheetseries.owasp.org/cheatsheets/Logging_Cheat_Sheet.html">OWASP Cheat Sheet: Logging</a> How to properly implement logging in an application </li>
+<li><a href="https://cheatsheetseries.owasp.org/cheatsheets/Application_Logging_Vocabulary_Cheat_Sheet.html">OWASP Cheat Sheet: Application Logging Vocabulary</a> A standard vocabulary for logging security events</li>
+</ul>
+<h2 id="tools">Tools</h2>
+<ul>
+<li><a href="https://logging.apache.org/">Apache Logging Services</a></li>
+</ul>
+
+
+
+
+
+
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+      <a href="../../2014/" class="md-tabs__link">
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+
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+    About this Project
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+    <li class="md-nav__item">
+      <a href="../../../introduction/about-owasp/" class="md-nav__link">
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+    About OWASP
+  </span>
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+    How to contribute?
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+    <li class="md-nav__item">
+      <a href="../../../introduction/related-owasp-projects/" class="md-nav__link">
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+            
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+    About the Top 10
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+  
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+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_2">
+            <span class="md-nav__icon md-icon"></span>
+            About the Top 10
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
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+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../about-top-10/in-the-news/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    In the News
+  </span>
+  
+
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+    </li>
+  
+
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+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../about-top-10/contributors/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Our Contributors
+  </span>
+  
+
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+    </li>
+  
+
+              
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+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../about-top-10/old-versions-and-translations/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Old Versions and Translations
+  </span>
+  
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+              
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+        </nav>
+      
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+    <li class="md-nav__item md-nav__item--nested">
+      
+        
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+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_3" >
+        
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+          <label class="md-nav__link" for="__nav_1_3" id="__nav_1_3_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    The Top 10 List
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_3_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_3">
+            <span class="md-nav__icon md-icon"></span>
+            The Top 10 List
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c1-accesscontrol/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Implement Access Control
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c2-crypto/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Use Cryptography the proper way
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c3-validate-input-and-handle-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Validate all Input & Handle Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c4-secure-architecture/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Address Security from the Start
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c5-secure-by-default/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Secure By Default Configurations
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c6-use-secure-dependencies/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Keep your Components Secure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c7-implement-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c8-help-the-browser-defend-the-user/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Leverage Browser Security Features
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c9-security-logging-and-monitoring/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c10-stop-server-side-request-forgery/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Stop Server Side Request Forgery
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+              
+            
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+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
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+  
+    
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+      
+        
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+    
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+    <li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
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+        
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+    Top 10 2018
+  </span>
+  
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+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="true">
+          <label class="md-nav__title" for="__nav_2">
+            <span class="md-nav__icon md-icon"></span>
+            Top 10 2018
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x01-about-owasp/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About OWASP
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x02-about-project/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Project
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x03-about-structure/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Structure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x04-introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c1-security-requirements/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c2-leverage-security-frameworks-libraries/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c3-secure-database/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c4-encode-escape-data/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c5-validate-inputs/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c6-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c7-enforce-access-controls/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
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+
+<h1 id="final-word">Final word</h1>
+<p>This document should be seen as a starting point rather than a comprehensive set of techniques and practices. We want to again emphasize that this document is intended to provide initial awareness around building secure software.</p>
+<p>Good next steps to help build an application security program include:</p>
+<ol>
+<li>To understand some of the risks in web application security please review the <a href="https://www.owasp.org/index.php/Category:OWASP_Top_Ten_Project">OWASP Top Ten</a> and the <a href="https://www.owasp.org/index.php/OWASP_Mobile_Security_Project#tab=Top_10_Mobile_Risks">OWASP Mobile Top Ten</a>.</li>
+<li>Per Proactive Control #1, a secure development program should include a <em>comprehensive list of security requirements</em> based on a standard such as the <a href="https://www.owasp.org/index.php/Category:OWASP_Application_Security_Verification_Standard_Project">OWASP (Web) ASVS</a> and the <a href="https://github.com/OWASP/owasp-masvs">OWASP (Mobile) MASVS</a>.</li>
+<li>To understand the core building blocks of a secure software program from a more macro point of view please review the <a href="https://www.owasp.org/index.php/OWASP_SAMM_Project">OWASP OpenSAMM project</a>.</li>
+</ol>
+<p>If you have any questions for the project leadership team, please contact with your questions, comments, and ideas at our GitHub project repository: https://github.com/OWASP/www-project-proactive-controls/issues</p>
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+      <li class="md-tabs__item">
+        <a href="../../.." class="md-tabs__link">
+          
+  
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+
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+
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+      </li>
+    
+  
+
+      
+        
+  
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+    <li class="md-tabs__item">
+      <a href="../../2016/" class="md-tabs__link">
+        
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+  
+  Top 10 2016
+
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+    </li>
+  
+
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+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="../../2014/" class="md-tabs__link">
+        
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+  
+  Top 10 2014
+
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+    </li>
+  
+
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+  </div>
+</nav>
+          
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+            
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+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
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+          </label>
+        
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+          <label class="md-nav__title" for="__nav_1_1">
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+            Introduction
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
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+  
+  
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+    <li class="md-nav__item">
+      <a href="../../.." class="md-nav__link">
+        
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+    About this Project
+  </span>
+  
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+    </li>
+  
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+  
+    <li class="md-nav__item">
+      <a href="../../../introduction/about-owasp/" class="md-nav__link">
+        
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+  <span class="md-ellipsis">
+    About OWASP
+  </span>
+  
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+      </a>
+    </li>
+  
+
+              
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+    <li class="md-nav__item">
+      <a href="../../../introduction/contributing/" class="md-nav__link">
+        
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+  <span class="md-ellipsis">
+    How to contribute?
+  </span>
+  
+
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+    </li>
+  
+
+              
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+  
+    <li class="md-nav__item">
+      <a href="../../../introduction/related-owasp-projects/" class="md-nav__link">
+        
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+  <span class="md-ellipsis">
+    Related OWASP Projects
+  </span>
+  
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+    </li>
+  
+
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+        </nav>
+      
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+  
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+      
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+        
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+    
+    <li class="md-nav__item md-nav__item--nested">
+      
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+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_2" >
+        
+          
+          <label class="md-nav__link" for="__nav_1_2" id="__nav_1_2_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    About the Top 10
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_2">
+            <span class="md-nav__icon md-icon"></span>
+            About the Top 10
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../about-top-10/in-the-news/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    In the News
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../about-top-10/contributors/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Our Contributors
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../about-top-10/old-versions-and-translations/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Old Versions and Translations
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+              
+            
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+    
+    
+      
+      
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_3" >
+        
+          
+          <label class="md-nav__link" for="__nav_1_3" id="__nav_1_3_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    The Top 10 List
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_3_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_3">
+            <span class="md-nav__icon md-icon"></span>
+            The Top 10 List
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c1-accesscontrol/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Implement Access Control
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c2-crypto/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Use Cryptography the proper way
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c3-validate-input-and-handle-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Validate all Input & Handle Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c4-secure-architecture/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Address Security from the Start
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c5-secure-by-default/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Secure By Default Configurations
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c6-use-secure-dependencies/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Keep your Components Secure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c7-implement-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c8-help-the-browser-defend-the-user/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Leverage Browser Security Features
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c9-security-logging-and-monitoring/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../the-top-10/c10-stop-server-side-request-forgery/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Stop Server Side Request Forgery
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    
+    
+    
+      
+      
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" >
+        
+          
+          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    Top 10 2018
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_2">
+            <span class="md-nav__icon md-icon"></span>
+            Top 10 2018
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x01-about-owasp/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About OWASP
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x02-about-project/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Project
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x03-about-structure/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Structure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../0x04-introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c1-security-requirements/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c2-leverage-security-frameworks-libraries/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c3-secure-database/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c4-encode-escape-data/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c5-validate-inputs/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c6-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c7-enforce-access-controls/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c8-protect-data-everywhere/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Protect Data Everywhere
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c9-security-logging/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../c10-errors-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Handle All Errors and Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../2016/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2016
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../2014/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2014
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+  </ul>
+</nav>
+                  </div>
+                </div>
+              </div>
+            
+            
+              
+              <div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" >
+                <div class="md-sidebar__scrollwrap">
+                  <div class="md-sidebar__inner">
+                    
+
+<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
+  
+  
+  
+  
+    <label class="md-nav__title" for="__toc">
+      <span class="md-nav__icon md-icon"></span>
+      Table of contents
+    </label>
+    <ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
+      
+        <li class="md-nav__item">
+  <a href="#table-of-contents" class="md-nav__link">
+    <span class="md-ellipsis">
+      Table of Contents
+    </span>
+  </a>
+  
+</li>
+      
+    </ul>
+  
+</nav>
+                  </div>
+                </div>
+              </div>
+            
+          
+          
+            <div class="md-content" data-md-component="content">
+              <article class="md-content__inner md-typeset">
+                
+                  
+
+  
+  
+
+
+  <h1>Info</h1>
+
+<h3 id="table-of-contents">Table of Contents</h3>
+<ul>
+  {% assign mypages = site.pages | where:"document","OWASP Top Ten Proactive Controls 2018"| sort: "order" %}
+    {% for page in mypages %}
+    {% if page.order > 0 %}
+    <li><a href="{{ page.url | absolute_url }}">{{ page.title }}</a></li>
+    {% endif %}
+    {% endfor %}
+</ul>
+
+
+
+
+
+
+
+
+
+  
+
+
+
+
+                
+              </article>
+            </div>
+          
+          
+  <script>var tabs=__md_get("__tabs");if(Array.isArray(tabs))e:for(var set of document.querySelectorAll(".tabbed-set")){var labels=set.querySelector(".tabbed-labels");for(var tab of tabs)for(var label of labels.getElementsByTagName("label"))if(label.innerText.trim()===tab){var input=document.getElementById(label.htmlFor);input.checked=!0;continue e}}</script>
+
+<script>var target=document.getElementById(location.hash.slice(1));target&&target.name&&(target.checked=target.name.startsWith("__tabbed_"))</script>
+        </div>
+        
+          <button type="button" class="md-top md-icon" data-md-component="top" hidden>
+  
+  <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M13 20h-2V8l-5.5 5.5-1.42-1.42L12 4.16l7.92 7.92-1.42 1.42L13 8z"/></svg>
+  Back to top
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+  
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+    <div class="md-footer-meta__inner md-grid">
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+  <a href="https://www.owasp.org"><img src="https://github.com/OWASP/owasp-mastg/blob/master/Document/Images/OWASP_logo_white.png?raw=true" width="100px" /></a>
+</div>
+<span style="font-size: smaller">
+  &#169; OWASP Foundation 2024. This work is licensed under 
+  <a href="https://creativecommons.org/licenses/by/4.0">CC-BY-4.0</a>. For any reuse or distribution, you must make clear to others the license terms of this work.
+</span><br><span style="font-size: smaller">OWASP &#174; is a registered trademark of the OWASP Foundation, Inc.</span> <span>This website uses cookies to analyze our traffic and only share that information with our analytics partners. <a href="https://github.com/OWASP/owasp-mastg/blob/master/about_cookies.md">Learn more</a>.</span>
+
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+    <a href="https://squidfunk.github.io/mkdocs-material/" target="_blank" rel="noopener">
+      Material for MkDocs
+    </a>
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+</div>
+      
+        <div class="md-social">
+  
+    
+    
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+    
+      
+      
+    
+    <a href="https://github.com/OWASP/www-project-proactive-controls" target="_blank" rel="noopener" title="github.com" class="md-social__link">
+      <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 480 512"><!--! Font Awesome Free 6.6.0 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2024 Fonticons, Inc.--><path d="M186.1 328.7c0 20.9-10.9 55.1-36.7 55.1s-36.7-34.2-36.7-55.1 10.9-55.1 36.7-55.1 36.7 34.2 36.7 55.1M480 278.2c0 31.9-3.2 65.7-17.5 95-37.9 76.6-142.1 74.8-216.7 74.8-75.8 0-186.2 2.7-225.6-74.8-14.6-29-20.2-63.1-20.2-95 0-41.9 13.9-81.5 41.5-113.6-5.2-15.8-7.7-32.4-7.7-48.8 0-21.5 4.9-32.3 14.6-51.8 45.3 0 74.3 9 108.8 36 29-6.9 58.8-10 88.7-10 27 0 54.2 2.9 80.4 9.2 34-26.7 63-35.2 107.8-35.2 9.8 19.5 14.6 30.3 14.6 51.8 0 16.4-2.6 32.7-7.7 48.2 27.5 32.4 39 72.3 39 114.2m-64.3 50.5c0-43.9-26.7-82.6-73.5-82.6-18.9 0-37 3.4-56 6-14.9 2.3-29.8 3.2-45.1 3.2-15.2 0-30.1-.9-45.1-3.2-18.7-2.6-37-6-56-6-46.8 0-73.5 38.7-73.5 82.6 0 87.8 80.4 101.3 150.4 101.3h48.2c70.3 0 150.6-13.4 150.6-101.3m-82.6-55.1c-25.8 0-36.7 34.2-36.7 55.1s10.9 55.1 36.7 55.1 36.7-34.2 36.7-55.1-10.9-55.1-36.7-55.1"/></svg>
+    </a>
+  
+</div>
+      
+    </div>
+  </div>
+</footer>
+      
+    </div>
+    <div class="md-dialog" data-md-component="dialog">
+      <div class="md-dialog__inner md-typeset"></div>
+    </div>
+    
+    
+    <script id="__config" type="application/json">{"base": "../../..", "features": ["navigation.sections", "navigation.tracking", "navigation.path", "navigation.tabs", "navigation.top", "search.suggest", "search.highlight", "content.tabs.link", "content.code.annotation", "content.code.copy"], "search": "../../../assets/javascripts/workers/search.07f07601.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script>
+    
+    
+      <script src="../../../assets/javascripts/bundle.56dfad97.min.js"></script>
+      
+    
+  </body>
+</html>
\ No newline at end of file
diff --git a/final-word/index.html b/final-word/index.html
index eb35c66..432aa1e 100644
--- a/final-word/index.html
+++ b/final-word/index.html
@@ -14,6 +14,8 @@
         <link rel="prev" href="../the-top-10/c10-stop-server-side-request-forgery/">
       
       
+        <link rel="next" href="../archive/2018/0x01-about-owasp/">
+      
       
       <link rel="icon" href="../assets/images/favicon.png">
       <meta name="generator" content="mkdocs-1.6.1, mkdocs-material-9.5.34">
@@ -94,9 +96,7 @@
     
       
 
-  
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+<header class="md-header" data-md-component="header">
   <nav class="md-header__inner md-grid" aria-label="Header">
     <a href=".." title="OWASP Top 10 Proactive Controls" class="md-header__button md-logo" aria-label="OWASP Top 10 Proactive Controls" data-md-component="logo">
       
@@ -217,6 +217,98 @@
       
         
           
+            
+<nav class="md-tabs" aria-label="Tabs" data-md-component="tabs">
+  <div class="md-grid">
+    <ul class="md-tabs__list">
+      
+        
+  
+  
+    
+  
+  
+    
+    
+      
+  
+  
+    
+  
+  
+    
+    
+      <li class="md-tabs__item md-tabs__item--active">
+        <a href=".." class="md-tabs__link">
+          
+  
+  Current Top 10 (WIP, 2024)
+
+        </a>
+      </li>
+    
+  
+
+    
+  
+
+      
+        
+  
+  
+  
+    
+    
+      <li class="md-tabs__item">
+        <a href="../archive/2018/0x01-about-owasp/" class="md-tabs__link">
+          
+  
+  Top 10 2018
+
+        </a>
+      </li>
+    
+  
+
+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="../archive/2016/" class="md-tabs__link">
+        
+  
+    
+  
+  Top 10 2016
+
+      </a>
+    </li>
+  
+
+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="../archive/2014/" class="md-tabs__link">
+        
+  
+    
+  
+  Top 10 2014
+
+      </a>
+    </li>
+  
+
+      
+    </ul>
+  </div>
+</nav>
+          
         
       
       <main class="md-main" data-md-component="main">
@@ -230,8 +322,10 @@
                     
 
 
+  
+
 
-<nav class="md-nav md-nav--primary" aria-label="Navigation" data-md-level="0">
+<nav class="md-nav md-nav--primary md-nav--lifted" aria-label="Navigation" data-md-level="0">
   <label class="md-nav__title" for="__drawer">
     <a href=".." title="OWASP Top 10 Proactive Controls" class="md-nav__button md-logo" aria-label="OWASP Top 10 Proactive Controls" data-md-component="logo">
       
@@ -260,6 +354,8 @@
       
   
   
+    
+  
   
   
     
@@ -269,28 +365,74 @@
         
         
       
+      
+        
+      
     
     
-    <li class="md-nav__item md-nav__item--section md-nav__item--nested">
+    <li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
       
         
         
-        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1" >
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1" checked>
         
           
           <label class="md-nav__link" for="__nav_1" id="__nav_1_label" tabindex="">
             
   
   <span class="md-ellipsis">
-    Introduction
+    Current Top 10 (WIP, 2024)
   </span>
   
 
             <span class="md-nav__icon md-icon"></span>
           </label>
         
-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="false">
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="true">
           <label class="md-nav__title" for="__nav_1">
+            <span class="md-nav__icon md-icon"></span>
+            Current Top 10 (WIP, 2024)
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    
+    
+    
+      
+      
+        
+          
+          
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--section md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_1" >
+        
+          
+          <label class="md-nav__link" for="__nav_1_1" id="__nav_1_1_label" tabindex="">
+            
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_1_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_1">
             <span class="md-nav__icon md-icon"></span>
             Introduction
           </label>
@@ -386,9 +528,10 @@
     </li>
   
 
-    
-      
-      
+              
+            
+              
+                
   
   
   
@@ -397,7 +540,10 @@
     
     
       
+      
         
+          
+          
         
       
     
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-        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" >
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_2" >
         
           
-          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="">
+          <label class="md-nav__link" for="__nav_1_2" id="__nav_1_2_label" tabindex="">
             
   
   <span class="md-ellipsis">
@@ -420,8 +566,8 @@
             <span class="md-nav__icon md-icon"></span>
           </label>
         
-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="false">
-          <label class="md-nav__title" for="__nav_2">
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_2">
             <span class="md-nav__icon md-icon"></span>
             About the Top 10
           </label>
@@ -496,9 +642,10 @@
     </li>
   
 
-    
-      
-      
+              
+            
+              
+                
   
   
   
@@ -507,7 +654,10 @@
     
     
       
+      
         
+          
+          
         
       
     
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-        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_3" >
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_3" >
         
           
-          <label class="md-nav__link" for="__nav_3" id="__nav_3_label" tabindex="">
+          <label class="md-nav__link" for="__nav_1_3" id="__nav_1_3_label" tabindex="">
             
   
   <span class="md-ellipsis">
@@ -530,8 +680,8 @@
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           </label>
         
-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_3_label" aria-expanded="false">
-          <label class="md-nav__title" for="__nav_3">
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_3_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_3">
             <span class="md-nav__icon md-icon"></span>
             The Top 10 List
           </label>
@@ -774,9 +924,10 @@
     </li>
   
 
-    
-      
-      
+              
+            
+              
+                
   
   
     
@@ -804,6 +955,416 @@
     </li>
   
 
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    
+    
+    
+      
+      
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" >
+        
+          
+          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    Top 10 2018
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_2">
+            <span class="md-nav__icon md-icon"></span>
+            Top 10 2018
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../archive/2018/0x01-about-owasp/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About OWASP
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../archive/2018/0x02-about-project/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Project
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../archive/2018/0x03-about-structure/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Structure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../archive/2018/0x04-introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../archive/2018/c1-security-requirements/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../archive/2018/c2-leverage-security-frameworks-libraries/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../archive/2018/c3-secure-database/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../archive/2018/c4-encode-escape-data/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../archive/2018/c5-validate-inputs/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../archive/2018/c6-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../archive/2018/c7-enforce-access-controls/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../archive/2018/c8-protect-data-everywhere/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Protect Data Everywhere
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../archive/2018/c9-security-logging/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../archive/2018/c10-errors-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Handle All Errors and Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../archive/2018/final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
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+
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@@ -217,6 +215,98 @@
       
         
           
+            
+<nav class="md-tabs" aria-label="Tabs" data-md-component="tabs">
+  <div class="md-grid">
+    <ul class="md-tabs__list">
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+      <li class="md-tabs__item md-tabs__item--active">
+        <a href="." class="md-tabs__link">
+          
+  
+  Current Top 10 (WIP, 2024)
+
+        </a>
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+  
+
+    
+  
+
+      
+        
+  
+  
+  
+    
+    
+      <li class="md-tabs__item">
+        <a href="archive/2018/0x01-about-owasp/" class="md-tabs__link">
+          
+  
+  Top 10 2018
+
+        </a>
+      </li>
+    
+  
+
+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="archive/2016/" class="md-tabs__link">
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+  
+    
+  
+  Top 10 2016
+
+      </a>
+    </li>
+  
+
+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="archive/2014/" class="md-tabs__link">
+        
+  
+    
+  
+  Top 10 2014
+
+      </a>
+    </li>
+  
+
+      
+    </ul>
+  </div>
+</nav>
+          
         
       
       <main class="md-main" data-md-component="main">
@@ -230,8 +320,10 @@
                     
 
 
+  
+
 
-<nav class="md-nav md-nav--primary" aria-label="Navigation" data-md-level="0">
+<nav class="md-nav md-nav--primary md-nav--lifted" aria-label="Navigation" data-md-level="0">
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@@ -271,6 +363,9 @@
         
         
       
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+        
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     <li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
@@ -284,7 +379,7 @@
             
   
   <span class="md-ellipsis">
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         <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="true">
           <label class="md-nav__title" for="__nav_1">
+            <span class="md-nav__icon md-icon"></span>
+            Current Top 10 (WIP, 2024)
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+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+    
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             <span class="md-nav__icon md-icon"></span>
             Introduction
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@@ -473,9 +613,10 @@
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-      
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+            
+              
+                
   
   
   
@@ -484,7 +625,10 @@
     
     
       
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+          
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   <span class="md-ellipsis">
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             <span class="md-nav__icon md-icon"></span>
             About the Top 10
           </label>
@@ -583,9 +727,10 @@
     </li>
   
 
-    
-      
-      
+              
+            
+              
+                
   
   
   
@@ -594,7 +739,10 @@
     
     
       
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+          
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             <span class="md-nav__icon md-icon"></span>
             The Top 10 List
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+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    
+    
     
       
       
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" >
+        
+          
+          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    Top 10 2018
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_2">
+            <span class="md-nav__icon md-icon"></span>
+            Top 10 2018
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
   
   
   
   
     <li class="md-nav__item">
-      <a href="final-word/" class="md-nav__link">
+      <a href="archive/2018/0x01-about-owasp/" class="md-nav__link">
         
   
   <span class="md-ellipsis">
-    Final Word
+    About OWASP
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="archive/2018/0x02-about-project/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Project
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="archive/2018/0x03-about-structure/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Structure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="archive/2018/0x04-introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="archive/2018/c1-security-requirements/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="archive/2018/c2-leverage-security-frameworks-libraries/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="archive/2018/c3-secure-database/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="archive/2018/c4-encode-escape-data/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="archive/2018/c5-validate-inputs/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="archive/2018/c6-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="archive/2018/c7-enforce-access-controls/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="archive/2018/c8-protect-data-everywhere/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Protect Data Everywhere
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="archive/2018/c9-security-logging/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="archive/2018/c10-errors-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Handle All Errors and Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="archive/2018/final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="archive/2016/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2016
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="archive/2014/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2014
   </span>
   
 
@@ -1071,7 +1630,7 @@ <h2 id="copyright-and-licence">Copyright and Licence</h2>
     </div>
     
     
-    <script id="__config" type="application/json">{"base": ".", "features": ["navigation.sections", "navigation.tracking", "navigation.path", "navigation.top", "search.suggest", "search.highlight", "content.tabs.link", "content.code.annotation", "content.code.copy"], "search": "assets/javascripts/workers/search.07f07601.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script>
+    <script id="__config" type="application/json">{"base": ".", "features": ["navigation.sections", "navigation.tracking", "navigation.path", "navigation.tabs", "navigation.top", "search.suggest", "search.highlight", "content.tabs.link", "content.code.annotation", "content.code.copy"], "search": "assets/javascripts/workers/search.07f07601.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script>
     
     
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diff --git a/introduction/about-owasp/index.html b/introduction/about-owasp/index.html
index 750e4e8..8565583 100644
--- a/introduction/about-owasp/index.html
+++ b/introduction/about-owasp/index.html
@@ -96,9 +96,7 @@
     
       
 
-  
-
-<header class="md-header md-header--shadow" data-md-component="header">
+<header class="md-header" data-md-component="header">
   <nav class="md-header__inner md-grid" aria-label="Header">
     <a href="../.." title="OWASP Top 10 Proactive Controls" class="md-header__button md-logo" aria-label="OWASP Top 10 Proactive Controls" data-md-component="logo">
       
@@ -219,6 +217,98 @@
       
         
           
+            
+<nav class="md-tabs" aria-label="Tabs" data-md-component="tabs">
+  <div class="md-grid">
+    <ul class="md-tabs__list">
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+        
+  
+  
+    
+  
+  
+    
+    
+      
+  
+  
+    
+  
+  
+    
+    
+      <li class="md-tabs__item md-tabs__item--active">
+        <a href="../.." class="md-tabs__link">
+          
+  
+  Current Top 10 (WIP, 2024)
+
+        </a>
+      </li>
+    
+  
+
+    
+  
+
+      
+        
+  
+  
+  
+    
+    
+      <li class="md-tabs__item">
+        <a href="../../archive/2018/0x01-about-owasp/" class="md-tabs__link">
+          
+  
+  Top 10 2018
+
+        </a>
+      </li>
+    
+  
+
+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="../../archive/2016/" class="md-tabs__link">
+        
+  
+    
+  
+  Top 10 2016
+
+      </a>
+    </li>
+  
+
+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="../../archive/2014/" class="md-tabs__link">
+        
+  
+    
+  
+  Top 10 2014
+
+      </a>
+    </li>
+  
+
+      
+    </ul>
+  </div>
+</nav>
+          
         
       
       <main class="md-main" data-md-component="main">
@@ -232,8 +322,10 @@
                     
 
 
+  
+
 
-<nav class="md-nav md-nav--primary" aria-label="Navigation" data-md-level="0">
+<nav class="md-nav md-nav--primary md-nav--lifted" aria-label="Navigation" data-md-level="0">
   <label class="md-nav__title" for="__drawer">
     <a href="../.." title="OWASP Top 10 Proactive Controls" class="md-nav__button md-logo" aria-label="OWASP Top 10 Proactive Controls" data-md-component="logo">
       
@@ -273,6 +365,9 @@
         
         
       
+      
+        
+      
     
     
     <li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
@@ -286,7 +381,7 @@
             
   
   <span class="md-ellipsis">
-    Introduction
+    Current Top 10 (WIP, 2024)
   </span>
   
 
@@ -295,6 +390,51 @@
         
         <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="true">
           <label class="md-nav__title" for="__nav_1">
+            <span class="md-nav__icon md-icon"></span>
+            Current Top 10 (WIP, 2024)
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+    
+  
+  
+  
+    
+    
+    
+      
+      
+        
+          
+          
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_1" checked>
+        
+          
+          <label class="md-nav__link" for="__nav_1_1" id="__nav_1_1_label" tabindex="">
+            
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_1_label" aria-expanded="true">
+          <label class="md-nav__title" for="__nav_1_1">
             <span class="md-nav__icon md-icon"></span>
             Introduction
           </label>
@@ -400,9 +540,10 @@
     </li>
   
 
-    
-      
-      
+              
+            
+              
+                
   
   
   
@@ -411,7 +552,10 @@
     
     
       
+      
         
+          
+          
         
       
     
@@ -420,10 +564,10 @@
       
         
         
-        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" >
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_2" >
         
           
-          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="">
+          <label class="md-nav__link" for="__nav_1_2" id="__nav_1_2_label" tabindex="">
             
   
   <span class="md-ellipsis">
@@ -434,8 +578,8 @@
             <span class="md-nav__icon md-icon"></span>
           </label>
         
-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="false">
-          <label class="md-nav__title" for="__nav_2">
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_2">
             <span class="md-nav__icon md-icon"></span>
             About the Top 10
           </label>
@@ -510,9 +654,10 @@
     </li>
   
 
-    
-      
-      
+              
+            
+              
+                
   
   
   
@@ -521,7 +666,10 @@
     
     
       
+      
         
+          
+          
         
       
     
@@ -530,10 +678,10 @@
       
         
         
-        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_3" >
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_3" >
         
           
-          <label class="md-nav__link" for="__nav_3" id="__nav_3_label" tabindex="">
+          <label class="md-nav__link" for="__nav_1_3" id="__nav_1_3_label" tabindex="">
             
   
   <span class="md-ellipsis">
@@ -544,8 +692,8 @@
             <span class="md-nav__icon md-icon"></span>
           </label>
         
-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_3_label" aria-expanded="false">
-          <label class="md-nav__title" for="__nav_3">
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_3_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_3">
             <span class="md-nav__icon md-icon"></span>
             The Top 10 List
           </label>
@@ -788,19 +936,430 @@
     </li>
   
 
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    
     
+    
+      
       
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--nested">
       
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" >
+        
+          
+          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    Top 10 2018
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_2">
+            <span class="md-nav__icon md-icon"></span>
+            Top 10 2018
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
   
   
   
   
     <li class="md-nav__item">
-      <a href="../../final-word/" class="md-nav__link">
+      <a href="../../archive/2018/0x01-about-owasp/" class="md-nav__link">
         
   
   <span class="md-ellipsis">
-    Final Word
+    About OWASP
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x02-about-project/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Project
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x03-about-structure/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Structure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x04-introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c1-security-requirements/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c2-leverage-security-frameworks-libraries/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c3-secure-database/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c4-encode-escape-data/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c5-validate-inputs/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c6-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c7-enforce-access-controls/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c8-protect-data-everywhere/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Protect Data Everywhere
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c9-security-logging/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c10-errors-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Handle All Errors and Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2016/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2016
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2014/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2014
   </span>
   
 
@@ -946,7 +1505,7 @@ <h1 id="about-owasp">About OWASP</h1>
     </div>
     
     
-    <script id="__config" type="application/json">{"base": "../..", "features": ["navigation.sections", "navigation.tracking", "navigation.path", "navigation.top", "search.suggest", "search.highlight", "content.tabs.link", "content.code.annotation", "content.code.copy"], "search": "../../assets/javascripts/workers/search.07f07601.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script>
+    <script id="__config" type="application/json">{"base": "../..", "features": ["navigation.sections", "navigation.tracking", "navigation.path", "navigation.tabs", "navigation.top", "search.suggest", "search.highlight", "content.tabs.link", "content.code.annotation", "content.code.copy"], "search": "../../assets/javascripts/workers/search.07f07601.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script>
     
     
       <script src="../../assets/javascripts/bundle.56dfad97.min.js"></script>
diff --git a/introduction/contributing/index.html b/introduction/contributing/index.html
index 2eb1683..49572ee 100644
--- a/introduction/contributing/index.html
+++ b/introduction/contributing/index.html
@@ -96,9 +96,7 @@
     
       
 
-  
-
-<header class="md-header md-header--shadow" data-md-component="header">
+<header class="md-header" data-md-component="header">
   <nav class="md-header__inner md-grid" aria-label="Header">
     <a href="../.." title="OWASP Top 10 Proactive Controls" class="md-header__button md-logo" aria-label="OWASP Top 10 Proactive Controls" data-md-component="logo">
       
@@ -219,6 +217,98 @@
       
         
           
+            
+<nav class="md-tabs" aria-label="Tabs" data-md-component="tabs">
+  <div class="md-grid">
+    <ul class="md-tabs__list">
+      
+        
+  
+  
+    
+  
+  
+    
+    
+      
+  
+  
+    
+  
+  
+    
+    
+      <li class="md-tabs__item md-tabs__item--active">
+        <a href="../.." class="md-tabs__link">
+          
+  
+  Current Top 10 (WIP, 2024)
+
+        </a>
+      </li>
+    
+  
+
+    
+  
+
+      
+        
+  
+  
+  
+    
+    
+      <li class="md-tabs__item">
+        <a href="../../archive/2018/0x01-about-owasp/" class="md-tabs__link">
+          
+  
+  Top 10 2018
+
+        </a>
+      </li>
+    
+  
+
+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="../../archive/2016/" class="md-tabs__link">
+        
+  
+    
+  
+  Top 10 2016
+
+      </a>
+    </li>
+  
+
+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="../../archive/2014/" class="md-tabs__link">
+        
+  
+    
+  
+  Top 10 2014
+
+      </a>
+    </li>
+  
+
+      
+    </ul>
+  </div>
+</nav>
+          
         
       
       <main class="md-main" data-md-component="main">
@@ -232,8 +322,10 @@
                     
 
 
+  
+
 
-<nav class="md-nav md-nav--primary" aria-label="Navigation" data-md-level="0">
+<nav class="md-nav md-nav--primary md-nav--lifted" aria-label="Navigation" data-md-level="0">
   <label class="md-nav__title" for="__drawer">
     <a href="../.." title="OWASP Top 10 Proactive Controls" class="md-nav__button md-logo" aria-label="OWASP Top 10 Proactive Controls" data-md-component="logo">
       
@@ -273,6 +365,9 @@
         
         
       
+      
+        
+      
     
     
     <li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
@@ -286,7 +381,7 @@
             
   
   <span class="md-ellipsis">
-    Introduction
+    Current Top 10 (WIP, 2024)
   </span>
   
 
@@ -295,6 +390,51 @@
         
         <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="true">
           <label class="md-nav__title" for="__nav_1">
+            <span class="md-nav__icon md-icon"></span>
+            Current Top 10 (WIP, 2024)
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+    
+  
+  
+  
+    
+    
+    
+      
+      
+        
+          
+          
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_1" checked>
+        
+          
+          <label class="md-nav__link" for="__nav_1_1" id="__nav_1_1_label" tabindex="">
+            
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_1_label" aria-expanded="true">
+          <label class="md-nav__title" for="__nav_1_1">
             <span class="md-nav__icon md-icon"></span>
             Introduction
           </label>
@@ -439,9 +579,10 @@
     </li>
   
 
-    
-      
-      
+              
+            
+              
+                
   
   
   
@@ -450,7 +591,10 @@
     
     
       
+      
         
+          
+          
         
       
     
@@ -459,10 +603,10 @@
       
         
         
-        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" >
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_2" >
         
           
-          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="">
+          <label class="md-nav__link" for="__nav_1_2" id="__nav_1_2_label" tabindex="">
             
   
   <span class="md-ellipsis">
@@ -473,8 +617,8 @@
             <span class="md-nav__icon md-icon"></span>
           </label>
         
-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="false">
-          <label class="md-nav__title" for="__nav_2">
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_2">
             <span class="md-nav__icon md-icon"></span>
             About the Top 10
           </label>
@@ -549,9 +693,10 @@
     </li>
   
 
-    
-      
-      
+              
+            
+              
+                
   
   
   
@@ -560,7 +705,10 @@
     
     
       
+      
         
+          
+          
         
       
     
@@ -569,10 +717,10 @@
       
         
         
-        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_3" >
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_3" >
         
           
-          <label class="md-nav__link" for="__nav_3" id="__nav_3_label" tabindex="">
+          <label class="md-nav__link" for="__nav_1_3" id="__nav_1_3_label" tabindex="">
             
   
   <span class="md-ellipsis">
@@ -583,8 +731,8 @@
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           </label>
         
-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_3_label" aria-expanded="false">
-          <label class="md-nav__title" for="__nav_3">
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_3_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_3">
             <span class="md-nav__icon md-icon"></span>
             The Top 10 List
           </label>
@@ -827,19 +975,430 @@
     </li>
   
 
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    
+    
     
       
       
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" >
+        
+          
+          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    Top 10 2018
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_2">
+            <span class="md-nav__icon md-icon"></span>
+            Top 10 2018
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
   
   
   
   
     <li class="md-nav__item">
-      <a href="../../final-word/" class="md-nav__link">
+      <a href="../../archive/2018/0x01-about-owasp/" class="md-nav__link">
         
   
   <span class="md-ellipsis">
-    Final Word
+    About OWASP
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x02-about-project/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Project
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x03-about-structure/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Structure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x04-introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c1-security-requirements/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c2-leverage-security-frameworks-libraries/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c3-secure-database/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c4-encode-escape-data/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c5-validate-inputs/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c6-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c7-enforce-access-controls/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c8-protect-data-everywhere/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Protect Data Everywhere
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c9-security-logging/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c10-errors-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Handle All Errors and Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2016/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2016
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2014/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2014
   </span>
   
 
@@ -904,7 +1463,7 @@
 <h1 id="how-to-contribute">How to Contribute?</h1>
 <p>Please don’t hesitate to contact the OWASP Proactive Control project with your questions, comments, and ideas.</p>
 <p>You can contact maintainers directly, use our <a href="https://owasp.slack.com/archives/C07KNHZAN1H">project-top10-proactive-controls OWASP slack channel</a>, or visit <a href="https://github.com/OWASP/www-project-proactive-controls">our github page</a>.</p>
-<p>You find the source code of the current version of the OWASP Top 10 Proactive Controls in the <code>docs/</code> directory within the git repository.</p>
+<p>You find the source code of the current version of the OWASP Top 10 Proactive Controls in the <code>docs/</code> directory within the git repository. Please focus upon contributions for the current version, not archived versions within <code>docs/archive</code>.</p>
 <p>When you check <a href="https://github.com/OWASP/www-project-proactive-controls/issues">our open issues on github</a>, you can see that some issues are tagged with <code>help wanted</code> or <code>good first issue</code>. Choose these if you want to help out the project!</p>
 <h2 id="how-to-test-the-owasp-proactive-control-website-locally">How to test the OWASP Proactive Control website locally?</h2>
 <p>If you can run python, you can locally run the OWASP Proactive Control website locally. We recommend this to test your changes before pushing them to github.</p>
@@ -1007,7 +1566,7 @@ <h2 id="how-to-test-the-owasp-proactive-control-website-locally">How to test the
     </div>
     
     
-    <script id="__config" type="application/json">{"base": "../..", "features": ["navigation.sections", "navigation.tracking", "navigation.path", "navigation.top", "search.suggest", "search.highlight", "content.tabs.link", "content.code.annotation", "content.code.copy"], "search": "../../assets/javascripts/workers/search.07f07601.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script>
+    <script id="__config" type="application/json">{"base": "../..", "features": ["navigation.sections", "navigation.tracking", "navigation.path", "navigation.tabs", "navigation.top", "search.suggest", "search.highlight", "content.tabs.link", "content.code.annotation", "content.code.copy"], "search": "../../assets/javascripts/workers/search.07f07601.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script>
     
     
       <script src="../../assets/javascripts/bundle.56dfad97.min.js"></script>
diff --git a/introduction/related-owasp-projects/index.html b/introduction/related-owasp-projects/index.html
index 9f26de5..3ace931 100644
--- a/introduction/related-owasp-projects/index.html
+++ b/introduction/related-owasp-projects/index.html
@@ -96,9 +96,7 @@
     
       
 
-  
-
-<header class="md-header md-header--shadow" data-md-component="header">
+<header class="md-header" data-md-component="header">
   <nav class="md-header__inner md-grid" aria-label="Header">
     <a href="../.." title="OWASP Top 10 Proactive Controls" class="md-header__button md-logo" aria-label="OWASP Top 10 Proactive Controls" data-md-component="logo">
       
@@ -219,6 +217,98 @@
       
         
           
+            
+<nav class="md-tabs" aria-label="Tabs" data-md-component="tabs">
+  <div class="md-grid">
+    <ul class="md-tabs__list">
+      
+        
+  
+  
+    
+  
+  
+    
+    
+      
+  
+  
+    
+  
+  
+    
+    
+      <li class="md-tabs__item md-tabs__item--active">
+        <a href="../.." class="md-tabs__link">
+          
+  
+  Current Top 10 (WIP, 2024)
+
+        </a>
+      </li>
+    
+  
+
+    
+  
+
+      
+        
+  
+  
+  
+    
+    
+      <li class="md-tabs__item">
+        <a href="../../archive/2018/0x01-about-owasp/" class="md-tabs__link">
+          
+  
+  Top 10 2018
+
+        </a>
+      </li>
+    
+  
+
+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="../../archive/2016/" class="md-tabs__link">
+        
+  
+    
+  
+  Top 10 2016
+
+      </a>
+    </li>
+  
+
+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="../../archive/2014/" class="md-tabs__link">
+        
+  
+    
+  
+  Top 10 2014
+
+      </a>
+    </li>
+  
+
+      
+    </ul>
+  </div>
+</nav>
+          
         
       
       <main class="md-main" data-md-component="main">
@@ -232,8 +322,10 @@
                     
 
 
+  
+
 
-<nav class="md-nav md-nav--primary" aria-label="Navigation" data-md-level="0">
+<nav class="md-nav md-nav--primary md-nav--lifted" aria-label="Navigation" data-md-level="0">
   <label class="md-nav__title" for="__drawer">
     <a href="../.." title="OWASP Top 10 Proactive Controls" class="md-nav__button md-logo" aria-label="OWASP Top 10 Proactive Controls" data-md-component="logo">
       
@@ -273,6 +365,9 @@
         
         
       
+      
+        
+      
     
     
     <li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
@@ -286,7 +381,7 @@
             
   
   <span class="md-ellipsis">
-    Introduction
+    Current Top 10 (WIP, 2024)
   </span>
   
 
@@ -295,6 +390,51 @@
         
         <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="true">
           <label class="md-nav__title" for="__nav_1">
+            <span class="md-nav__icon md-icon"></span>
+            Current Top 10 (WIP, 2024)
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+    
+  
+  
+  
+    
+    
+    
+      
+      
+        
+          
+          
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_1" checked>
+        
+          
+          <label class="md-nav__link" for="__nav_1_1" id="__nav_1_1_label" tabindex="">
+            
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_1_label" aria-expanded="true">
+          <label class="md-nav__title" for="__nav_1_1">
             <span class="md-nav__icon md-icon"></span>
             Introduction
           </label>
@@ -475,9 +615,10 @@
     </li>
   
 
-    
-      
-      
+              
+            
+              
+                
   
   
   
@@ -486,7 +627,10 @@
     
     
       
+      
         
+          
+          
         
       
     
@@ -495,10 +639,10 @@
       
         
         
-        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" >
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_2" >
         
           
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+          <label class="md-nav__link" for="__nav_1_2" id="__nav_1_2_label" tabindex="">
             
   
   <span class="md-ellipsis">
@@ -509,8 +653,8 @@
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           </label>
         
-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="false">
-          <label class="md-nav__title" for="__nav_2">
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_2">
             <span class="md-nav__icon md-icon"></span>
             About the Top 10
           </label>
@@ -585,9 +729,10 @@
     </li>
   
 
-    
-      
-      
+              
+            
+              
+                
   
   
   
@@ -596,7 +741,10 @@
     
     
       
+      
         
+          
+          
         
       
     
@@ -605,10 +753,10 @@
       
         
         
-        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_3" >
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_3" >
         
           
-          <label class="md-nav__link" for="__nav_3" id="__nav_3_label" tabindex="">
+          <label class="md-nav__link" for="__nav_1_3" id="__nav_1_3_label" tabindex="">
             
   
   <span class="md-ellipsis">
@@ -619,8 +767,8 @@
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-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_3_label" aria-expanded="false">
-          <label class="md-nav__title" for="__nav_3">
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_3_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_3">
             <span class="md-nav__icon md-icon"></span>
             The Top 10 List
           </label>
@@ -863,19 +1011,430 @@
     </li>
   
 
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    
+    
     
       
       
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" >
+        
+          
+          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    Top 10 2018
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_2">
+            <span class="md-nav__icon md-icon"></span>
+            Top 10 2018
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
   
   
   
   
     <li class="md-nav__item">
-      <a href="../../final-word/" class="md-nav__link">
+      <a href="../../archive/2018/0x01-about-owasp/" class="md-nav__link">
         
   
   <span class="md-ellipsis">
-    Final Word
+    About OWASP
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x02-about-project/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Project
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x03-about-structure/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Structure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x04-introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c1-security-requirements/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c2-leverage-security-frameworks-libraries/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c3-secure-database/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c4-encode-escape-data/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c5-validate-inputs/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c6-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c7-enforce-access-controls/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c8-protect-data-everywhere/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Protect Data Everywhere
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c9-security-logging/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c10-errors-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Handle All Errors and Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
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We hope that the OWASP Proactive Controls is useful to your efforts in building secure software.</p>"},{"location":"#target-audience","title":"Target Audience","text":"<p>This document is primarily written for developers. However, development managers, product owners, Q/A professionals, program managers, and anyone involved in building software can also benefit from this document.</p>"},{"location":"#how-to-use-this-document","title":"How to Use this Document","text":"<p>This document\u2019s main purpose is to provide a solid foundation of topics to help drive introductory software security developer training. To be effective, these controls should be used consistently and thoroughly throughout all applications.</p> <p>However, this document is a starting point rather than a comprehensive set of techniques and practices.</p> <p>A fully secure development process should include comprehensive requirements from a standard such as the OWASP ASVS in addition to including a range of software development activities described in maturity models such as OWASP SAMM and BSIMM.</p>"},{"location":"#project-leaders","title":"Project Leaders","text":"<ul> <li>Andreas Happe, connect through linkedin, github, twitter/x</li> <li>Jim Manico, connect through linkedin, github, twitter/x</li> <li>Katy Anton, connect through linkedin, github, twitter/x</li> </ul>"},{"location":"#copyright-and-licence","title":"Copyright and Licence","text":"<p>This document is released under the Creative Commons Attribution-ShareAlike 4.0 International license. For any reuse or distribution, you must make it clear to others the license terms of this work.</p>"},{"location":"final-word/","title":"Final word","text":"<p>This document should be seen as a starting point rather than a comprehensive set of techniques and practices. We want to again emphasize that this document is intended to provide initial awareness around building secure software.</p> <p>Good next steps to help build an application security program include:</p> <ol> <li>To understand some of the risks in web application security please review the OWASP Top Ten .</li> <li>A secure development program should include a comprehensive list of security requirements .  Use Threat Modeling to identify potential security threats, derive security requirements, and tailor security controls to prevent those. Use standards such as the OWASP (Web) ASVS and the OWASP (Mobile) MASVS which provides a catalog of available security requirements along with the  relevant verification criteria.</li> <li>To understand the core building blocks of a secure software program from a more macro point of view please review the OWASP OpenSAMM project.</li> </ol>"},{"location":"about-top-10/contributors/","title":"Contributors","text":"<p>This document would not have been possible without our contributors for which we are grateful.</p> <p>From the shared 2024 document and according to github:</p> <ul> <li>Chris Romeo</li> <li>Jasmin Mair</li> <li>Abdessamad Temmar</li> <li>Carl Sampson</li> <li>Eyal Estrin</li> <li>Israel Chorzevski</li> <li>Zoe Braiterman</li> <li>Timo Pagel</li> <li>ThreeHoolagins</li> <li>Wallace Soares</li> <li>Aref Shaheed</li> <li>ThunderSon</li> <li>Marcus Fenstrom</li> <li>Datz</li> <li>Josh Grossman</li> <li>Tomas Coiro</li> <li>Dr. Pi3ch</li> <li>Ishaq Mohammed</li> <li>Richard Tweed</li> <li>Derek Gary</li> <li>Starr Brown</li> <li>Thomas</li> <li>Christian Capellan</li> <li>Adriaan Joubert</li> </ul>"},{"location":"about-top-10/contributors/#contributors-from-previous-versions","title":"Contributors from previous versions","text":"<ul> <li>Massimiliano Graziani (Italian Translation)</li> <li>Taras Ivashchenko  (Russian Translation)</li> <li>Jay Zudilin (Russian Translation)</li> <li>Danny Harris</li> <li>Hiroaki Kuramochi (Japanese Translation)</li> <li>Hiroshi Fujimoto (Japanese Translation)</li> <li>Hidenori Nagai (Japanese Translation)</li> <li>Riotaro OKADA (Japanese Translation)</li> <li>Robert Dracea (Japanese Translation)</li> <li>Koichiro Watanabe (Japanese Translation)</li> <li>Tony Hsu Hsiang Chih (Chinese Translation)</li> <li>Cyrille Grandval (French Translation)</li> <li>Fr\u00e9d\u00e9ric Baillon (French Translation)</li> <li>Danny Harris</li> <li>Stephen de Vries</li> <li>Andrew Van Der Stock</li> <li>Gaz Heyes</li> <li>Colin Watson</li> <li>Jason Coleman</li> <li>Cassio Goldschmidt</li> <li>Dan Anderson</li> <li>David Cybuck</li> <li>Dave Ferguson</li> <li>Osama Elnaggar</li> <li>Rick Mitchell</li> </ul>"},{"location":"about-top-10/in-the-news/","title":"OWASP Top 10 Proactive Controls in the News","text":""},{"location":"about-top-10/in-the-news/#2024","title":"2024","text":"<p>Introduction of the OWASP Top 10 Proactive Controls v4 and switch to new wiki system.</p> <ul> <li>[6 Feb 2024] Featured in <code>gbhackers.</code> post OWASP Top 10 Proactive Security Controls For Software Developers to Build Secure Software</li> </ul>"},{"location":"about-top-10/in-the-news/#2022","title":"2022","text":"<ul> <li>[10 Nov 2022] Blog Post by Kerr</li> <li>[13 June 2022] Featured on the GitHub Blog</li> </ul>"},{"location":"about-top-10/in-the-news/#2021","title":"2021","text":"<ul> <li>[12 Feb 2021] Featured in oneconsult's post OWASP Top 10 Proactive Controls \u2013 Teil 1</li> </ul>"},{"location":"about-top-10/in-the-news/#2020","title":"2020","text":"<ul> <li>[5 Nov 2020] Featured by Snyk in Developing secure software: how to implement the OWASP top 10 Proactive Controls</li> </ul>"},{"location":"about-top-10/in-the-news/#2019","title":"2019","text":"<ul> <li>[July 2019] Featured in Coursera course from UCDavies     Identifying Security Vulnerabilities</li> <li>[23 June 2019] Featured on HackerCombat: Implement OWASP Proactive Controls to Work</li> <li>[7 June 2019] Feature on OWASP DevSlop Show Proactive Controls</li> <li>[15 May 2019] Featured in TechBeacon: Put OWASP Top 10 Proactive Controls to work</li> <li>[2 Mar 2019] Webinar: The OWASP Top Ten Proactive Controls with Jim Manico</li> </ul>"},{"location":"about-top-10/in-the-news/#2018","title":"2018","text":"<p>The OWASP Top 10 Proactive Controls 2018 (v3) were released.</p> <ul> <li>[Dec 2018] Featured as the resource for Security \u201cShifting to the Left\u201d! in the ISC2 course: \"DevSecOps: Integrating Security into DevOps\u201d</li> <li>[20 Sep 2018] Featured in TechBeacon: OWASP Top 10 Proactive Controls 2018: How it makes your code more secure</li> <li>[17 Sep 2018] Binary Blogger Podcast Episodes: OWASP Top 10 Proactive Controls Podcast Episodes</li> <li>[9 May 2018] Featured in Developer's security guide: 50 online resources to shift left</li> <li>[7 May 2018] 3.0 released!</li> </ul>"},{"location":"about-top-10/in-the-news/#2017","title":"2017","text":"<ul> <li>[11 Aug 2017] Presented at Northeast PHP Conference</li> <li>[25 July 2017] Podcast about at OWASP Top 10 Proactive Controls</li> <li>[12 May 2017] Presented at AppSec EU'17 -    Belfast</li> <li>[14 Feb 2017] Featured in Managing Cloud Infrastructure to Prevent Security    Gaps</li> <li>[Feb 2017 ] Featured in \"Application Security Program: Protect    Against Data Breaches\"</li> </ul>"},{"location":"about-top-10/in-the-news/#2016","title":"2016","text":"<p>The OWASP Top 10 Proactive Controls 2016 (v2) were released on Jan, 14th 2016.</p> <ul> <li>[1 Oct 2016] Presented at PHPNW16</li> <li>[5 July 2016] Featured in Incorporating Security Best Practices     into Agile   Teams</li> <li>[June 2016 ] Featured in A Transformative Approach to Secure    Systems    Delivery</li> <li>[2 June 2016] Featured in DevOpsSec - Securing Software through    Continuous    Delivery</li> </ul>"},{"location":"about-top-10/old-versions-and-translations/","title":"Old Versions and Translations","text":"<p>Starting with version <code>v4</code> in 2024, we don't accept inclusion of translations into the OWASP Top 10 Proactive Controls directly and are only providing the English version.</p> <p>We do encourage translators to create translated versions and host them themselves and will link to those external sites/documents if notified about them.</p>"},{"location":"about-top-10/old-versions-and-translations/#owasp-top-10-proactive-controls-2018-v3","title":"OWASP Top 10 Proactive Controls 2018 (v3)","text":"<p>You can find the OWASP Top 10 Proactive Controls 2018 (vv) on GitHub:</p> <ul> <li>English version: pdf, docx, pptx</li> <li>Available Translations (in alphabetical order):</li> <li>Arabic: pdf</li> <li>Brazilian Portuguese: pdf</li> <li>Chinese: pdf</li> <li>Italian: pdf</li> <li>Spanish: pdf</li> <li>Polish: pdf</li> <li>Russian: pdf</li> </ul> <p>We also provide a Mapping to the OWASP Top 10 and IEEE Top 10.</p>"},{"location":"about-top-10/old-versions-and-translations/#owasp-top-10-proactive-controls-2016-v2","title":"OWASP Top 10 Proactive Controls 2016 (v2)","text":"<p>You can find the OWASP Top 10 Proactive Controls 2016 (v2) on GitHub:</p> <ul> <li>English version: pdf, docx, pptx</li> <li>Available Translations (in alphabetical order):</li> <li>Chinese: pdf</li> <li>Hebrew: pdf</li> <li>Japanese: pdf</li> <li>Simplified Chinese: pdf</li> </ul>"},{"location":"about-top-10/old-versions-and-translations/#owasp-top-10-proactive-controls-2014-v1","title":"OWASP Top 10 Proactive Controls 2014 (v1)","text":"<p>They might be somewhere..</p>"},{"location":"introduction/about-owasp/","title":"About OWASP","text":"<p>The Open Worldwide Application Security Project (OWASP) is an open community dedicated to enabling organizations to develop, purchase, and maintain applications and APIs that can be trusted.</p> <p>All OWASP tools, documents, videos, presentations, and chapters are free and open to anyone interested in improving application security.</p> <p>We advocate approaching application security as a people, process, and technology problem, because the most effective approaches to application security require improvements in these areas.</p> <p>OWASP is a new kind of organization. Our freedom from commercial pressures allows us to provide unbiased, practical, and cost-effective information about application security.</p> <p>OWASP is not affiliated with any technology company, although we support the informed use of commercial security technology. OWASP produces many types of materials in a collaborative, transparent, and open way.</p> <p>The OWASP Foundation is the non-profit entity that ensures the project's long-term success. Almost everyone associated with OWASP is a volunteer, including the OWASP board, chapter leaders, project leaders, and project members. We support innovative security research with grants and infrastructure.</p>"},{"location":"introduction/contributing/","title":"How to Contribute?","text":"<p>Please don\u2019t hesitate to contact the OWASP Proactive Control project with your questions, comments, and ideas.</p> <p>You can contact maintainers directly, use our project-top10-proactive-controls OWASP slack channel, or visit our github page.</p> <p>You find the source code of the current version of the OWASP Top 10 Proactive Controls in the <code>docs/</code> directory within the git repository.</p> <p>When you check our open issues on github, you can see that some issues are tagged with <code>help wanted</code> or <code>good first issue</code>. Choose these if you want to help out the project!</p>"},{"location":"introduction/contributing/#how-to-test-the-owasp-proactive-control-website-locally","title":"How to test the OWASP Proactive Control website locally?","text":"<p>If you can run python, you can locally run the OWASP Proactive Control website locally. We recommend this to test your changes before pushing them to github.</p> <p>To do this, we will use <code>venv</code> to create a local python environment to install the needed <code>mkdocs</code> package.</p> <pre><code># creates and activates a new python environment in a new `venv` directory\n$ python3 -m venv venv\n$ source venv/bin/activate\n\n# install the mkdocs package\n$ pip install mkdocs-material\n\n# switch into your checked-out OWASP Proactive Controls directory\n$ cd owasp-proactive-controls\n\n# run the local webserver\n$ mkdocs server\n\n# now you can point your browser to http://localhost:8000 and check\n# how your changes will look like\n</code></pre>"},{"location":"introduction/related-owasp-projects/","title":"Related OWASP Projects","text":"<p>OWASP is a volunteer-driven organization. Those volunteers contributed many useful documents, and this section points to some related OWASP documents and projects:</p>"},{"location":"introduction/related-owasp-projects/#owasp-top-10","title":"OWASP Top 10","text":"<p>The best-known OWASP document is the OWASP Top 10. They detail the most common web application vulnerabilities and are also the base for this document. In contrast, this document is focused on defensive techniques and controls as opposed to risks. Each control in this document will map to one or more items in the risk-based OWASP Top 10. This mapping information is included at the end of each control description.</p>"},{"location":"introduction/related-owasp-projects/#owasp-asvs","title":"OWASP ASVS","text":"<p>The OWASP Application Security Verification Standard (ASVS) is a catalog of available security requirements and verification criteria. OWASP ASVS can be a source of detailed security requirements for development teams. Security requirements are categorized into different buckets based on a shared higher order security function. For example, the ASVS contains categories such as authentication, access control, error handling / logging, and web services. Each category contains a collection of requirements that represent the best practices for that category drafted as verifiable statements.</p>"},{"location":"introduction/related-owasp-projects/#owasp-samm","title":"OWASP SAMM","text":"<p>Software Assurance Maturity Model (SAMM) is an open framework to help organizations implement a strategy for maturing the software security tailored to the specific risks of the organization. . SAMM supports the complete software lifecycle and can be used to identify what</p>"},{"location":"introduction/related-owasp-projects/#threat-modeling-in-general","title":"Threat Modeling in General","text":"<p>Threat Modeling is an important part of secure application development, which can help identify potential security threats, derive security requirements, and tailor security controls to prevent potential threats. Successful use of security requirements involves four steps: discovery, documentation, implementation, and verification of the correct implementation of the functionality within an application. Threat modelling is one way to derive security requirements. Other sources are: industry standards, applicable laws, history of past vulnerabilities. Modeling tools, like OWASP Threat Dragon can be used to create threat model diagrams as part of a secure development lifecycle.</p>"},{"location":"introduction/related-owasp-projects/#domain-specific-documents","title":"Domain-Specific Documents","text":"<p>It is important to notice that this document primarily focuses on web applications, but other Top 10s could apply to your application, too. Examples of those are:</p> <ul> <li>OWASP API Top 10</li> <li>OWASP Mobile Application Top 10</li> </ul>"},{"location":"the-top-10/c1-accesscontrol/","title":"C1: Implement Access Control","text":""},{"location":"the-top-10/c1-accesscontrol/#description","title":"Description","text":"<p>Access Control (or Authorization) is allowing or denying specific requests from a user, program, or process. With each access control decision, a given subject requests access to a given object. Access control is the process that considers the defined policy and determines if a given subject is allowed to access a given object. Access control also involves the act of granting and revoking those privileges. Access Control often applies on multiple levels, e.g., given an application with a database backend, it applies both on the business logic level as well as on a database row level. In addition, applications can offer multiple ways of performing operations (e.g., through APIs or the website). All those different levels and access paths must be aligned, i.e., use the same access control checks, to protect against security vulnerabilities. Authorization (verifying access to specific features or resources) is not equivalent to authentication (verifying identity).</p>"},{"location":"the-top-10/c1-accesscontrol/#threats","title":"Threats","text":"<ul> <li>An attacker could take advantage of a loosely configured access control policy to access data the organization did not intend to make accessible.</li> <li>An attacker could discover multiple access control components within an application and exploit the weakest.</li> <li>An administrator could forget to decommission an old account, and an attacker could discover that account and use it to access data.</li> <li>An attacker could gain access to data that had a policy that dropped into a final step of allowing access. (Lack of default deny)</li> </ul>"},{"location":"the-top-10/c1-accesscontrol/#implementation","title":"Implementation","text":"<p>Below is a minimum set of access control design requirements that should be considered at the initial stages of application development.</p>"},{"location":"the-top-10/c1-accesscontrol/#1-design-access-control-thoroughly-up-front","title":"1) Design Access Control Thoroughly Up Front","text":"<p>Once you have chosen a specific access control design pattern, it is often difficult and time-consuming to re-engineer access control in your application with a new pattern. Access Control is one of the main areas of application security design that must be thoroughly designed up front, especially when addressing requirements like multi-tenancy and horizontal (data dependent) access control.</p> <p>Two core types of access control design should be considered.</p> <ul> <li>Role Based Access Control (RBAC) is a model for controlling access to resources where permitted actions on resources are identified with roles rather than with individual subject identities.</li> <li>Attribute Based Access Control (ABAC) will grant or deny user access based on arbitrary attributes of the user and arbitrary attributes of the object, and environment conditions that may be globally recognized, and more relevant to the policies at hand. Access Control design may start simple but can often become complex and feature-heavy security control. When evaluating the access control capability of software frameworks, ensure that your access control functionality will allow for customization for your specific access control feature need.</li> </ul>"},{"location":"the-top-10/c1-accesscontrol/#2-force-every-access-request-to-go-through-an-access-control-check","title":"2) Force Every Access Request to Go Through an Access Control Check","text":"<p>Ensure that all access requests are forced to go through an access control verification layer. Technologies like Java filters or other automatic request processing mechanisms are ideal programming components that will ensure that all requests go through an access control check. This is referred to as Policy Enforcement Point in RFC 2904.</p>"},{"location":"the-top-10/c1-accesscontrol/#3-consolidate-the-access-control-check","title":"3) Consolidate the access control check","text":"<p>Use a single access control procedure or routine. This prevents the scenario where you have multiple access control implementations, where most are correct, but some are flawed. By using a centralized approach, you can focus security resources on reviewing and fixing one central library or function that performs the access control check, and then reuse it throughout your code base and organization.</p>"},{"location":"the-top-10/c1-accesscontrol/#4-deny-by-default","title":"4) Deny by Default","text":"<p>Ensure that by default, all the requests are denied, unless they are specifically allowed. This also includes accessing API (REST or webhooks) with missing access controls. There are many ways that this rule will manifest in the application code. Some examples are:</p> <ol> <li> <p>Application code may throw an error or exception while processing access control requests. In these cases, access control should always be denied.</p> </li> <li> <p>When an administrator creates a new user or a user registers for a new account, that account should have minimal or no access by default until that access is configured.</p> </li> <li> <p>When a new feature is added to an application, all users should be denied to use it until it\u2019s properly configured.</p> </li> </ol>"},{"location":"the-top-10/c1-accesscontrol/#5-principle-of-least-privilege-just-in-time-jit-just-enough-access-jea","title":"5) Principle of Least Privilege / Just in Time (JIT), Just Enough Access (JEA)","text":"<p>An example of implementing that principle is to create dedicated privileged roles and accounts for every organization function that requires highly privileged activities and avoid using an \u201cadmin\u201d role/account that is fully privileged daily.</p> <p>To further improve the security, you can implement Just-in-Time (JIT) or Just-enough-Access (JEA): ensure that all users, programs, or processes are only given just enough access to achieve their current mission. This access should be provided just in time, when the subject makes the request, and the access should be granted for a short time. Be wary of systems that do not provide granular access control configuration capabilities.</p>"},{"location":"the-top-10/c1-accesscontrol/#6-do-not-hardcode-roles","title":"6) Do not Hardcode Roles","text":"<p>Many application frameworks default to access control that is role based. It is common to find application code filled with checks of this nature.</p> <pre><code>if (user.hasRole(\"ADMIN\")) || (user.hasRole(\"MANAGER\")) {\n    deleteAccount();\n}\n</code></pre> <p>Be careful about this type of role-based programming in code. It has the following limitations or dangers:</p> <ul> <li>Role-based programming of this nature is fragile. It is easy to create incorrect or missing role checks in code.</li> <li>Hard-Coded Roles do not allow for multi-tenancy. Extreme measures like forking the code or adding checks for each customer will be required to allow role-based systems to have different rules for different customers.</li> <li>Large code bases with many access control checks can make it difficult to audit or verify the overall application access control policy.</li> <li>Hard coded roles can also be seen as a backdoor when discovered during audits.</li> </ul>"},{"location":"the-top-10/c1-accesscontrol/#7-abac-policy-enforcement-point-example","title":"7) ABAC Policy Enforcement Point Example","text":"<p>Please consider the following access control enforcement points using this following programming methodology:</p> <pre><code>if (user.hasPermission(\"DELETE_ACCOUNT\")) {\n    deleteAccount();\n}\n</code></pre> <p>Attribute or feature-based access control checks of this nature are the starting point to building well-designed and feature-rich access control systems. This type of programming also allows for greater access control customization capability over time.</p>"},{"location":"the-top-10/c1-accesscontrol/#vulnerabilities-prevented","title":"Vulnerabilities Prevented","text":"<ul> <li>OWASP Top 10 2021-A01_2021-Broken Access Control</li> <li>CWE Top 25 - 11:CWE-862 Missing Authorization</li> <li>CWE Top 25 - 24:CWE-863 Incorrect Authorization</li> </ul>"},{"location":"the-top-10/c1-accesscontrol/#references","title":"References","text":"<ul> <li>OWASP Cheat Sheet: Authorization Cheat Sheet</li> <li>OWASP Cheat Sheet: Logging Cheat Sheet</li> <li>OWASP ASVS V4 Access Control</li> <li>OWASP Testing Guide: Authorization Testing</li> <li>OAuth2.0 protocol for authorization</li> <li>Draft OAuth2.1</li> <li>Policy Enforcement in RFC 2904</li> </ul>"},{"location":"the-top-10/c1-accesscontrol/#tools","title":"Tools","text":"<ul> <li>ZAP with the optional Access Control Testing add-on</li> <li>Open Policy Agent</li> </ul>"},{"location":"the-top-10/c10-stop-server-side-request-forgery/","title":"C10: Stop Server Side Request Forgery","text":""},{"location":"the-top-10/c10-stop-server-side-request-forgery/#description","title":"Description","text":"<p>While Injection Attacks typically target the victim server itself, Server-Side Request Forgery (SSRF) attacks try to coerce the server to perform a request on behalf of the attacker. Why is this beneficial for the attacker? The outgoing request will be performed with the identity of the victim server and thus the attacker might execute operations with elevated operations.</p>"},{"location":"the-top-10/c10-stop-server-side-request-forgery/#threats","title":"Threats","text":"<p>Examples of this contain:</p> <ul> <li>If an SSRF attack is possible on an server within the DMZ, an attacker might be able to access other servers within the DMZ without passing a perimeter firewall</li> <li>Many servers have local services running on localhost, often without any authentication/authorization as localhost. This can be abused by SSRF attacks.</li> <li>If SSO is used, SSRF can be used to extract tokens/tickets/hashes from servers etc.</li> </ul>"},{"location":"the-top-10/c10-stop-server-side-request-forgery/#implementation","title":"Implementation","text":"<p>There multiple ways of preventing SSRF:</p> <ul> <li>Input validation</li> <li>If outgoing requests have to be made, check the target against an allow-list</li> <li>If using XML, configure parsers securely to prevent XEE Be aware of Unicode and other Character transformations when performing input validation.</li> </ul>"},{"location":"the-top-10/c10-stop-server-side-request-forgery/#vulnerabilities-prevented","title":"Vulnerabilities Prevented","text":"<ul> <li>A10:2021 \u2013 Server-Side Request Forgery (SSRF)</li> </ul>"},{"location":"the-top-10/c10-stop-server-side-request-forgery/#references","title":"References","text":"<ul> <li>Server-Side Request Forgery Prevention Cheat Sheet</li> <li>A New Era of SSRF - Exploiting URL Parser in Trending Programming Languages!</li> </ul>"},{"location":"the-top-10/c10-stop-server-side-request-forgery/#tools","title":"Tools","text":"<ul> <li>SSRFmap</li> </ul>"},{"location":"the-top-10/c2-crypto/","title":"C2: Use Cryptography the proper way","text":""},{"location":"the-top-10/c2-crypto/#description","title":"Description","text":"<p>Sensitive data such as passwords, credit card numbers, health records, personal information and business secrets require extra protection, particularly if that data falls under privacy laws (EU\u2019s General Data Protection Regulation GDPR), financial data protection rules such as PCI Data Security Standard (PCI DSS) or other regulations.</p> <p>Attackers can steal data from web and web service applications in a number of ways. For example, if sensitive information is sent over the internet without communications security, then an attacker on a shared wireless connection could capture and steal another user\u2019s data. Also, an attacker could use SQL Injection to steal passwords and other credentials from an applications database and expose that information to the public.</p> <p>Privacy is assurance that the confidentiality of, and access to, certain information about an entity is protected. Users of the things developers build want their information protected from disclosure.</p> <p>Protect sensitive data such as passwords, credit card numbers, health records, personal information, and business secrets.</p> <p>Regulations exist to force companies to protect user\u2019s personal information. The European Union values individual privacy, such that they created the EU General Data Protection Regulation GDPR. Financial data protection rules such as PCI Data Security Standard (PCI DSS) also exist to protect cardholder privacy.</p> <p>Cryptography is the art or science concerning the principles, means, and methods for rendering plain information unintelligible and restoring encrypted information to intelligible form. Individual user data requires cryptography to ensure it is properly cared for when stored.</p>"},{"location":"the-top-10/c2-crypto/#classify-data-types-in-your-application","title":"Classify data types in your application","text":"<p>It\u2019s critical to classify data in your system and determine which level of sensitivity each piece of data belongs to. Each data category can then be mapped to protection rules necessary for each level of sensitivity. For example, public marketing information that is not sensitive may be categorized as public data which is ok to place on the public website. Credit card numbers may be classified as private user data which will need to be encrypted while stored, processed or in transit.</p> <p>Data classification can also be mandated by legislation, e.g., GDPR when serving users within the European Union.</p> <p>Classify the data sent, processed, and stored in your system and determine what level of sensitivity the data belongs to. Categorize the data to define specific protection rules for each type. The rule creation enables your team to perform data minimization and try not to store sensitive data whenever possible.</p> <p>For example, public marketing information that is not sensitive may be categorized as public data, which is okay to place on the public website and does not need to be encrypted. Credit card numbers need to be encrypted while stored, processed, and in transit.</p>"},{"location":"the-top-10/c2-crypto/#threats","title":"Threats","text":"<ul> <li>An attacker could exploit weak or outdated encryption algorithms to decrypt sensitive information.</li> <li>Improperly stored encryption keys could be compromised, leading to unauthorized data access.</li> <li>An attacker can perform SQL Injection attacks to steal encrypted data from databases.</li> <li>Failure to implement proper key management could result in unauthorized access to encrypted data.</li> </ul>"},{"location":"the-top-10/c2-crypto/#implementation","title":"Implementation","text":"<p>When it comes to cryptography, there are a few simple rules:</p> <ul> <li>Never transmit plain-text data. The technical capability exists to easily encrypt all data that is sent between any point A and B. Embrace the use of cryptography to protect all data at rest and in transit.</li> <li>Do not create your own cryptographic protocols. The creation of a cryptographic protocol is a tricky proposition. When NIST created AES, they had an open competition where the best cryptographers worldwide submitted proposals and then looked for flaws in the other proposals. Instead of using your developer cycles to create a new crypto protocol, use an existing, battle-tested standard. Focus your innovation on making your feature or product better.</li> <li>Do not implement cryptographic routines. Use an existing library that implements cryptographic routines.</li> </ul>"},{"location":"the-top-10/c2-crypto/#protect-data-at-rest","title":"Protect data at rest","text":"<p>The first rule of sensitive data management is to avoid storing sensitive data when at all possible. If you must store sensitive data then make sure it is cryptographically protected in some way to avoid unauthorized disclosure and modification. Cryptography (or crypto) is one of the more advanced topics of information security and one whose understanding requires the most schooling and experience. It is difficult to get right because there are many approaches to encryption, each with advantages and disadvantages that need to be thoroughly understood by web solution architects and developers. In addition, serious cryptography research is typically based on advanced mathematics and number theory, providing a serious barrier to entry. Designing or building cryptographic algorithms is very error-prone (see side-channel attacks). Instead of building cryptographic capability from scratch, it is strongly recommended that peer-reviewed and open solutions be used, such as the Google <code>Tink</code> project, <code>Libsodium</code>, and secure storage capability built into many software frameworks and cloud services.</p>"},{"location":"the-top-10/c2-crypto/#store-passwords-safely","title":"Store passwords safely","text":"<p>Most web applications will face the challenge of storing user\u2019s passwords to set up authentication services. Store the passwords safely to ensure an attacker cannot quickly obtain them. Do not store the passwords in plain text anywhere in the database. Always use a hashing function to store passwords. Enhance the hashing function by adding a random salt for each item to increase the randomness of hashes.</p>"},{"location":"the-top-10/c2-crypto/#special-case-application-secrets-management","title":"Special Case: Application Secrets management","text":"<p>Applications contain numerous \u201csecrets\u201d that are needed for security operations. These include certificates, SQL connection passwords, third party service account credentials, passwords, SSH keys, encryption keys and more. The unauthorized disclosure or modification of these secrets could lead to complete system compromise. In managing application secrets, consider the following: Don\u2019t store secrets in code, config files or pass them through environment variables. Use tools like GitRob or TruffleHog to scan code repos for secrets. Your code should be written in a way that even if your code would be disclosed, e.g., due to a defective configured github repository, your running applications are still secure. Keep keys and your other application-level secrets in a secrets vault like KeyWhiz or Hashicorp\u2019s Vault project , Amazon KMS, or AWS Secrets Manager to provide secure storage and access to application-level secrets at run-time. Many web-frameworks such as Ruby on Rails provide integrated ways of dealing with secrets and credentials.</p>"},{"location":"the-top-10/c2-crypto/#key-lifecycle","title":"Key Lifecycle","text":"<p>Secret keys are used in applications with a number of sensitive functions. For example, secret keys can be used to sign JWTs, protect credit cards, provide various forms of authentication as well as facilitate other sensitive security features. In managing keys, a number of rules should be followed including</p> <ul> <li>Ensure that any secret key is protected from unauthorized access</li> <li>All authorized access to a secret key is logged for forensic purposes</li> <li>Store keys in a proper secrets vault as described below</li> <li>Use independent keys when multiple keys are required</li> <li>Build support for changing cryptographic algorithms to prepare for future needed changes</li> <li>Build application features to support and handle key rotation gracefully. This can happen on a periodic base or after a key has been compromised.</li> </ul>"},{"location":"the-top-10/c2-crypto/#protect-data-in-transit","title":"Protect data in transit","text":"<p>Sensitive data such as passwords, credit card numbers, health records, personal information and business secrets require extra protection, particularly if that data falls under privacy laws (EU\u2019s General Data Protection Regulation GDPR), financial data protection rules such as PCI Data Security Standard (PCI DSS) or other regulations. Attackers can steal data from web and web service applications in a number of ways. For example, if sensitive information is sent over the internet without communications security, then an attacker on a shared wireless connection could capture and steal another user\u2019s data. Also, an attacker could use SQL Injection to steal passwords and other credentials from an applications database and expose that information to the public.</p>"},{"location":"the-top-10/c2-crypto/#use-current-cryptographic-protocols","title":"Use current cryptographic protocols","text":"<p>When developing web applications, use TLSv1.2 or TLSv1.3, preferably TLSv1.3. If possible, investigate the usage of HTTP/2 or HTTP/3 as they warrant the usage of security TLS versions/algorithms.</p> <ul> <li>Directly turn off other older protocols to avoid protocol downgrade attacks.</li> <li>Do not offer HTTP. Disable both HTTP and SSL compression.</li> <li>Always utilize a secure random number generator (RNG).</li> </ul>"},{"location":"the-top-10/c2-crypto/#instruct-clients-to-enforce-transport-level-encryption","title":"Instruct Clients to enforce Transport Level Encryption","text":"<p>Web servers can instruct web browsers to uphold minimal transport-level security:</p> <ul> <li>Use the Strict-Transport-Security Header to enforce opportunistic encryption and certificate validation checks.</li> <li>Content-Security-Policy allows for automatic client-side upgrade from HTTP to HTTPS.</li> <li>When setting cookies, always utilize the \u201csecure\u201d flag to prevent transmission over HTTP.</li> </ul>"},{"location":"the-top-10/c2-crypto/#support-cryptographic-agility-cryptography-changes-over-time","title":"Support Cryptographic Agility: Cryptography changes over Time","text":"<p>Cryptographic recommendations change over time. To allow for this, make cryptographic choices such as used algorithms or key sizes configurable. This is called Cryptographic Agility</p> <p>If the application needs to support high availability, design key-rollover procedures.</p>"},{"location":"the-top-10/c2-crypto/#vulnerabilities-prevented","title":"Vulnerabilities Prevented","text":"<ul> <li>https://owasp.org/Top10/A02_2021-Cryptographic_Failures/</li> <li>https://mas.owasp.org/MASVS/controls/MASVS-CRYPTO-1/</li> </ul>"},{"location":"the-top-10/c2-crypto/#references","title":"References","text":"<ul> <li>OWASP Cheat Sheet: Transport Layer Protection</li> <li>Ivan Ristic: SSL/TLS Deployment Best Practices</li> <li>OWASP Cheat Sheet: HSTS</li> <li>OWASP Cheat Sheet: Cryptographic Storage</li> <li>OWASP Cheat Sheet: Password Storage</li> <li>OWASP Web Security Testing Guide: Testing for Weak Cryptography</li> <li>OWASP WrongSecrets : vulnerable application with example of how to NOT use secrets</li> </ul>"},{"location":"the-top-10/c2-crypto/#tools","title":"Tools","text":"<ul> <li>https://github.com/nabla-c0d3/sslyze</li> <li>https://testssl.sh/</li> <li>SSLyze - SSL configuration scanning library and CLI tool</li> <li>SSLLabs - Free service for scanning and checking TLS/SSL configuration</li> <li>OWASP O-Saft TLS Tool - TLS connection testing tool</li> <li>GitRob - Command line tool to find sensitive information in publicly available files on GitHub</li> <li>TruffleHog - Searches for secrets accidentally committed</li> <li>Hashicorp Vault - Secrets manager</li> <li>Amazon KMS - Manage keys on AWS</li> <li>AWS Secrets Manager - Manage secrets on AWS</li> <li>Azure Key Vault - Manage keys and secrets on Azure</li> <li>Google Cloud KMS - Manage keys on Google Cloud Platform</li> <li>Google Secret Manager - Manage secrets on Google Cloud Platform</li> </ul>"},{"location":"the-top-10/c3-validate-input-and-handle-exceptions/","title":"C3: Validate all Input &amp; Handle Exceptions","text":""},{"location":"the-top-10/c3-validate-input-and-handle-exceptions/#description","title":"Description","text":"<p>Input validation is a programming technique that ensures only properly formatted data may enter a software system component. When the injection attack targets a client (for example JavaScript based attacks), web servers can perform quoting/encoding on the attacker-provided data before forwarding it to the client.</p> <p>Injection attacks commonly occur if an application confuses data input as executable commands and are often possible where input validation is forgotten or implemented wrong. For example, imagine that a web application accepts an email address as input from a user. The email address would be the expected \u201cdata\u201d. Attackers now search for ways to confuse applications to execute this (supposed) data as commands. Different injection attacks target different areas:</p> <ul> <li>When an attacker tricks an application into interpreting user input (data) as SQL commands (or parts thereof), there is a SQL injection attack. The injected command executes within the database server.</li> <li>Remote command injection (RCE) happens if an application confuses user data with commands that execute on the web application server/host. Server-Side Template Injections are another example of injections executed within the application server.</li> <li>When Javascript-Injections happen, a web application has accepted user data but is coerced to execute that data as code. Injected javascript code is typically executed within another user\u2019s web browser, thus not directly attacking the web server but other users.</li> </ul>"},{"location":"the-top-10/c3-validate-input-and-handle-exceptions/#syntactic-and-semantic-validity","title":"Syntactic and Semantic Validity","text":"<p>An application should check that data is syntactically and semantically valid (in that order) before using it in any way (including displaying it back to the user).</p> <ul> <li> <p>Syntactic validity means that the data is in the expected form. For example, an application may allow users to select a four-digit \u201caccount ID\u201d to perform some operation. The application should assume the user is entering a SQL injection payload and check that the data entered by the user is precisely four digits in length and consists only of numbers (in addition to utilizing proper query parameterization).</p> </li> <li> <p>Semantic validity includes only accepting input within an acceptable range for application functionality and context. For example, a start date must be before an end date when choosing date ranges.</p> </li> </ul>"},{"location":"the-top-10/c3-validate-input-and-handle-exceptions/#threats","title":"Threats","text":"<ul> <li>An attacker could exploit SQL injection vulnerabilities by submitting malicious input to manipulate database queries, potentially gaining unauthorized access to sensitive data.</li> <li>An attacker could perform cross-site scripting (XSS) attacks by injecting malicious scripts into web pages, which are then executed in other users' browsers, potentially stealing session tokens or personal information.</li> <li>An attacker could execute arbitrary code remotely by injecting malicious commands into system calls or APIs, potentially taking control of the target system.</li> <li>An attacker could trigger buffer overflow errors by supplying input exceeding expected lengths, potentially overwriting memory and executing arbitrary code.</li> <li>An attacker could launch denial of service attacks by overwhelming systems with malformed or excessive input, potentially rendering services unavailable to legitimate users.</li> <li>An attacker could access unauthorized files and directories through path traversal attacks, potentially exposing sensitive system files or configuration data.</li> <li>An attacker could insert malicious payloads into XML documents to exploit XML parsing vulnerabilities, potentially leading to information disclosure or system compromise.</li> <li>An attacker could inject malicious templates into server-side template engines, potentially achieving remote code execution on the server.</li> <li>An attacker could confuse applications and bypass security controls through HTTP parameter pollution attacks, potentially manipulating application logic or accessing restricted functionality.</li> </ul>"},{"location":"the-top-10/c3-validate-input-and-handle-exceptions/#implementation","title":"Implementation","text":"<p>Protection against Injection Attacks is typically based upon a defense-in-depth approach and incorporates input filtering, output escaping, and utilization of hardening mechanisms. The former two are only dependent upon implemented security measures, and the latter is mostly dependent upon client-support, e.g., when protecting against XSS, filtering XSS from input and escaping output data server-side would prevent XSS regardless of the used web browser; adding a Content-Security-Policy prevents XSS, but only if the user\u2019s browser supports it. Due to this, security must never depend upon optional hardening measures alone.</p>"},{"location":"the-top-10/c3-validate-input-and-handle-exceptions/#prevent-malicious-data-from-entering-the-system","title":"Prevent malicious data from entering the system","text":"<p>Never trust provided data! Screen all data for malicious patterns or, even better, check all data against an allow list.</p>"},{"location":"the-top-10/c3-validate-input-and-handle-exceptions/#allowlisting-vs-denylisting","title":"Allowlisting vs Denylisting","text":"<p>There are two general approaches to performing syntactic validation, commonly known as allow and deny lists:</p> <ul> <li>Denylisting or denylist validation attempts to check that given data does not contain \u201cknown bad\u201d content. For example, a web application may block input containing the exact text &lt;SCRIPT&gt; to help prevent XSS. However, this defense could be evaded with a lowercase script tag or a script tag of mixed case.</li> <li>Allowlisting or allowlist validation attempts to check that a given data matches a set of \u201cknown good\u201d rules. For example, a allowlist validation rule for a US state would be a 2-letter code that is only one of the valid US states. Allowlisting is the recommended minimal approach. Denylisting is prone to error, can be bypassed with various evasion techniques, and can be dangerous when dependent on itself. Even though denylisting is often evaded, it can be useful to help detect obvious attacks. So while allowlisting helps limit the attack surface by ensuring data is of the right syntactic and semantic validity, denylisting helps detect and potentially stop obvious attacks.</li> </ul>"},{"location":"the-top-10/c3-validate-input-and-handle-exceptions/#client-side-and-server-side-validation","title":"Client side and Server side Validation","text":"<p>Always perform Input validation on the server side for security. While client-side validation is useful for both functional and security purposes, it is easily bypassed. Therefore, client-side validation is performed for usability purposes, but the application\u2019s security must not depend upon it. For example, JavaScript validation may alert the user that a particular field must consist of numbers. Still, the server-side application must validate that the submitted data only consists of numbers in the appropriate numerical range for that feature. Another benefit of using both client AND server-side validation is that any server-side validation warnings can be logged to inform operations of a potential hacker as the client-side validation had been bypassed.</p>"},{"location":"the-top-10/c3-validate-input-and-handle-exceptions/#regular-expressions","title":"Regular Expressions","text":"<p>Regular expressions offer a way to check whether data matches a specific pattern. Let\u2019s start with a basic example. The following regular expression defines an allowlist rule to validate usernames.</p> <pre><code>^\\[a-z0-9_\\]{3,16}$\n</code></pre> <p>This regular expression allows only lowercase letters, numbers, and the underscore character. The username is also restricted to a length of 3 and 16 characters.</p> <p>Caution: Potential for Denial of Service</p> <p>Care should be exercised when creating regular expressions. Poorly designed expressions may result in potential denial of service conditions (aka ReDoS ). Various tools can be tested to verify that regular expressions are not vulnerable to ReDoS.</p> <p>Caution: Complexity</p> <p>Regular expressions are just one way to accomplish validation. Regular expressions can be difficult to maintain or understand for some developers. Other validation alternatives involve writing validation methods programmatically, which can be easier to maintain for some developers.</p>"},{"location":"the-top-10/c3-validate-input-and-handle-exceptions/#unexpected-user-input-mass-assignment","title":"Unexpected User Input (Mass Assignment)","text":"<p>Some frameworks support automatic binding of HTTP requests parameters to server-side objects used by the application. This auto-binding feature can allow an attacker to update server-side objects that were not meant to be modified. The attacker can possibly modify their access control level or circumvent the intended business logic of the application with this feature. This attack has a number of names including: mass assignment, autobinding and object injection. As a simple example, if the user object has a field privilege which specifies the user\u2019s privilege level in the application, a malicious user can look for pages where user data is modified and add privilege=admin to the HTTP parameters sent. If auto-binding is enabled in an insecure fashion, the server-side object representing the user will be modified accordingly.</p> <p>Two approaches can be used to handle this:</p> <ul> <li>Avoid binding input directly and use Data Transfer Objects (DTOs) instead.</li> <li>Enable auto-binding but set up allowlist rules for each page or feature to define which fields are allowed to be auto-bound.</li> </ul> <p>More examples are available in the OWASP Mass Assignment Cheat Sheet</p>"},{"location":"the-top-10/c3-validate-input-and-handle-exceptions/#limits-of-input-validation","title":"Limits of Input Validation","text":"<p>Input validation does not always make data \u201csafe\u201d since certain complex input forms may be \u201cvalid\u201d but still dangerous. For example, a valid email address may contain a SQL injection attack, or a valid URL may contain a Cross Site Scripting attack. Additional defenses besides input validation should always be applied to data, such as query parameterization or escaping.</p>"},{"location":"the-top-10/c3-validate-input-and-handle-exceptions/#use-mechanisms-that-uphold-the-separation-of-data-and-commands","title":"Use mechanisms that uphold the separation of data and commands","text":"<p>Even if malicious data has passed the input checking, applications can prevent injection attacks by never executing those malicious data as commands/code. Multiple measures can achieve this goal, most of them are technology-dependent. For Example:</p> <ul> <li>When using relational databases through SQL, utilize Prepared-Statements. SQL Injection attacks typically happen if an attacker can provide input data that \u201cescapes\u201d from SQL-Commands created through string concatenation. Using Prepared Statements allows the computer to automatically encode input data in a way that does not allow it to \u201cescape\u201d from the command template.</li> <li>When using an ORM, be sure that you know how objects are mapped to SQL commands. While their layer of indirection might prevent common SQLi, specially prepared attacks are often still feasible.</li> <li>Server-Side Template Injection (SSTI) uses a templating engine on the server-side to dynamically generate content that is then displayed to the user. SSTI engines often allow configuration of sandboxing, i.e., only allow execution of a limited amount of methods.</li> <li>Executing System Commands with user input as parameters is prone to injection attacks. If feasible, this should be avoided.</li> </ul>"},{"location":"the-top-10/c3-validate-input-and-handle-exceptions/#javascript-injection-attacks","title":"JavaScript Injection Attacks","text":"<p>A special case are JavaScript based Injection attacks (XSS). The injected malicious code is commonly executed within a victim\u2019s browser. Typically, attackers try to steal the user\u2019s session information from the browser and not directly execute commands (as they do on the server-side). In addition to server-side input filtering and output escaping, multiple client-side hardening measurements can be taken (these also protect against the special case of DOM-based XSS where no server-side logic is involved and thus cannot filter malicious code):</p> <ul> <li>Mark sensitive cookies with httpOnly so JavaScript cannot access them</li> <li>Utilize a Content-Security-Policy to reduce the attack-surface for JavaScript-based Attacks</li> <li>Use a secure by default framework like Angular</li> </ul>"},{"location":"the-top-10/c3-validate-input-and-handle-exceptions/#validating-and-sanitizing-html","title":"Validating and Sanitizing HTML","text":"<p>Consider an application that needs to accept HTML from users (via a WYSIWYG editor that represents content as HTML or features that directly accept HTML in input). In this situation, validation or escaping will not help.</p> <ul> <li>Regular expressions are not expressive enough to understand the complexity of HTML5.</li> <li>Encoding or escaping HTML will not help since it will cause the HTML not to render properly.</li> </ul> <p>Therefore, you need a library to parse and clean HTML formatted text. Please see the XSS Prevention Cheat Sheet on HTML Sanitization for more information on HTML Sanitization.</p>"},{"location":"the-top-10/c3-validate-input-and-handle-exceptions/#special-case-validate-data-during-deserialization","title":"Special Case: Validate Data During Deserialization","text":"<p>Some forms of input are so complex that validation can only minimally protect the application. For example, it\u2019s dangerous to deserialize untrusted data or data that can be manipulated by an attacker. The only safe architectural pattern is to not accept serialized objects from untrusted sources or to only deserialize in limited capacity for only simple data types. You should avoid processing serialized data formats and use easier to defend formats such as JSON when possible.</p> <p>If that is not possible then consider a series of validation defenses when processing serialized data.</p> <ul> <li>Implement integrity checks and encryption of the serialized objects to prevent hostile object creation or data tampering.</li> <li>Enforce strict type constraints during deserialization before object creation; typically code is expecting a definable set of classes. Bypasses to this technique have been demonstrated.</li> <li>Isolate code that deserializes, such that it runs in very low privilege environments, such as temporary containers.</li> <li>Log security deserialization exceptions and failures, such as where the incoming type is not the expected type, or the deserialization throws exceptions.</li> <li>Restrict or monitor incoming and outgoing network connectivity from containers or servers that deserialize.</li> <li>Monitor deserialization, alerting if a user deserializes constantly.</li> </ul>"},{"location":"the-top-10/c3-validate-input-and-handle-exceptions/#vulnerabilities-prevented","title":"Vulnerabilities Prevented","text":"<ul> <li>Input validation reduces the attack surface of applications and can sometimes make attacks more difficult against an application.</li> <li>Input validation is a technique that provides security to certain forms of data, specific to certain attacks and cannot be reliably applied as a general security rule.</li> <li>Input validation should not be used as the primary method of preventing XSS, SQL Injection and other attacks.</li> <li>2023 CWE Top 25 - 3 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')</li> <li>2023 CWE Top 25 - 5 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')</li> <li>2023 CWE Top 25 - 16 Improper Neutralization of Special Elements used in a Command ('Command Injection')</li> <li>2023 CWE Top 25 - 23 Improper Control of Generation of Code ('Code Injection')</li> </ul>"},{"location":"the-top-10/c3-validate-input-and-handle-exceptions/#references","title":"References","text":"<p>Regarding Input Validation:</p> <ul> <li>OWASP Cheat Sheet: Input Validation</li> <li>OWASP Testing Guide: Testing for Input Validation</li> <li>Injection Prevention Cheat Sheet</li> <li>Injection Prevention Cheat Sheet in Java</li> <li>Hardening with CSP: CSP with Google</li> <li>Deploying CSP in Single Page Applications</li> </ul>"},{"location":"the-top-10/c3-validate-input-and-handle-exceptions/#tools","title":"Tools","text":"<p>Helping with Input Validation:</p> <ul> <li>OWASP Java HTML Sanitizer Project</li> <li>Java JSR-303/JSR-349 Bean Validation</li> <li>Java Hibernate ValidatorApache Commons ValidatorPHP\u2019s filter functions</li> </ul> <p>Testing for Injection Attacks:</p> <ul> <li>Sqlmap.py</li> <li>ZAP-based scans</li> </ul> <p>Helping with Hardening:</p> <ul> <li>CSP Evaluator</li> </ul>"},{"location":"the-top-10/c4-secure-architecture/","title":"C4: Address Security from the Start","text":""},{"location":"the-top-10/c4-secure-architecture/#description","title":"Description","text":"<p>When designing a new application, creating a secure architecture prevents vulnerabilities before they even become part of the application. This prevents costly repairs and repudiation problems.</p> <p>There are design principles that lead to secure architectures:</p> <ul> <li>keep it simple, stupid (KISS): the easier an application is to understand, the easier it is to reason about its components and their interactions. This allows to reason about the application's security behavior.</li> <li>Make it easy to do the right thing: don't expect the user to read documentation or invest time to \"do things the right way\". By default the application should behave in a secure manner. To make it insecure, an explicit action by the user has to take place.</li> <li>don't rely on obscurity: if the only security is due to the intransparency of the application or its source code, the application is not secure at all.</li> <li>Identify and minimize your exposed components (\"attack surface\"): attackers cannot attack what's not there.</li> <li>Design for Defense-in-Depth: think about what happens, if a component is breached and about the potential blast radius of an attack.</li> </ul>"},{"location":"the-top-10/c4-secure-architecture/#threats","title":"Threats","text":"<ul> <li>If the application is only protected by security-by-obscurity, an attacker that reverse-engineers the application has full permissions as soon the obfuscation is cleared-up. In addition, an attacker is able to monitor network traffic: while the obfuscation might be performed on the code-level, the operations on the network level can easily be analyzed.</li> <li>A web-application with a complex authorization scheme is deployed. A new software developer is tasked with extending one of the components. Due to the complexity, they misconfigure the authorization scheme and an attacker is able to exploit IDOR.</li> <li>A web-application with a complex authorization scheme is deployed. A new software developer adds a new plugin to the system. The system makes it hard to do the right thing, and all security configuration must be manually added to the plugin, by-default no security measures are taken. The new developer is not configuring anything thus the new plugin introduces an IDOR into the system.</li> <li>A web-application has many components, all of which are exposed to the public internet. The resulting attack surface is massive. For example, a database management tool (e.g., <code>phpmyadmin</code>) is deployed. After a 0day was found in <code>mysqladmin</code>, the whole database was extracted. During normal use, nobody uses <code>phpmyadmin</code>.</li> </ul>"},{"location":"the-top-10/c4-secure-architecture/#implementation","title":"Implementation","text":"<p>The mantra \"Complexity is the enemy of security\" can be seen throughout this implementation guidance.</p>"},{"location":"the-top-10/c4-secure-architecture/#design-for-clarity-and-transparency","title":"Design for Clarity and Transparency","text":"<p>Architecture should focus upon simplicity: the designed software should be only as complex as the intended user's requirements warrant. Focusing upon simplicity brings multiple benefits for the created software:</p> <ul> <li>It is easier to reason about a simple system. This allows to reason about potential security impacts of changes.</li> <li>Long-term maintenance is aided through the simpler design.</li> <li>The design should focus upon transparency, i.e., the security should not depend upon security-by-obscurity.</li> </ul>"},{"location":"the-top-10/c4-secure-architecture/#make-it-easy-to-do-the-right-thing","title":"Make it easy to do the right thing","text":"<p>Two terms often heard are \"security by design\" and \"security by default\". The former implies, that the software system should be usable in a secure manner while the latter means that the initial configuration of the software system is secure.</p> <p>This implies, that an system administrator has to make an explicit choice to introduce insecure configuration into the system. In contrast, the path of least resistance should always result in a secure system.</p> <p>When focusing upon end-user interactions, this aspect is important for designing user interfaces and flows. When focusing upon developer interactions, developer-facing facilities such as framework, APIs, network APIs should be designed that when using them with default values, only secure operations should occur. Think about this when designing your configuration files too</p>"},{"location":"the-top-10/c4-secure-architecture/#clearly-articulate-whats-trusted-to-do-what-and-ensure-those-relationships-are-enforced","title":"Clearly articulate what's trusted to do what, and ensure those relationships are enforced","text":"<p>Clearly articulate what's trusted to do what, and ensure those relationships are enforced, e.g., trust boundaries delineate blast radius and are enforced by controls, such as firewalls or gateways.</p> <p>Attenuate what's allowed by careful validation at each step. Go deeper with threat modeling mnemonics like stride or methodologies like stride per element.</p>"},{"location":"the-top-10/c4-secure-architecture/#identify-and-minimize-your-exposed-components-attack-surface","title":"Identify and minimize your exposed components (\"attack surface\")","text":"<p>Identify all areas that an attacker can access, review them and try to minimize them: attackers cannot attack what's not there.</p> <p>In addition, exposing only a minimal set of operations makes long-term maintenance easier.</p>"},{"location":"the-top-10/c4-secure-architecture/#use-well-known-architecture-patterns","title":"Use well-known Architecture Patterns","text":"<p>Experts have shared their wisdom about best practices in an easily digestible format called secure architecture patterns. Architecture patterns are reusable and can be applied across multiple applications.</p> <p>For a solution to be considered a pattern, it must have these characteristics:</p> <ul> <li>First, a secure architecture pattern must solve a security problem.</li> <li>Second, a secure architecture pattern must not be tied to a specific vendor or technology.</li> <li>Third, a secure architecture pattern must demonstrate how it mitigates threats.</li> <li>Fourth, a secure architecture pattern must use standardized terms for threats and controls for easy reuse.<sup>^footnote-1</sup></li> </ul> <p>An architecture pattern is a way to solve a problem using a standard solution versus creating a custom solution. A secure architecture pattern is a standard solution that has been reviewed and hardened against known security threats.</p> <p>Implementation:</p> <ol> <li>Identify the problem that requires solving.</li> <li>Consider the catalog of available secure architecture patterns.</li> <li>Choose a secure architecture pattern for the design.</li> <li>Implement the secure architecture pattern.</li> </ol>"},{"location":"the-top-10/c4-secure-architecture/#vulnerabilities-prevented","title":"Vulnerabilities Prevented","text":"<ul> <li>Business Logic Flaws: These patterns can help in structuring the application to avoid complex and often overlooked business logic vulnerabilities.</li> <li>OWASP Top 10 2021-A04 (Insecure Design): Secure architecture patterns directly target the mitigation of risks associated with insecure design, a key concern highlighted by OWASP.</li> </ul>"},{"location":"the-top-10/c4-secure-architecture/#references","title":"References","text":"<ul> <li>https://securitypatterns.io/what-is-a-security-pattern/</li> <li>https://owasp.org/www-pdf-archive/Vanhilst_owasp_140319.pdf</li> <li>https://cheatsheetseries.owasp.org/cheatsheets/Microservices_based_Security_Arch_Doc_Cheat_Sheet.html</li> <li>https://cheatsheetseries.owasp.org/cheatsheets/Secure_Product_Design_Cheat_Sheet.html</li> </ul>"},{"location":"the-top-10/c4-secure-architecture/#tools","title":"Tools","text":"<ul> <li>maybe add some threat modeling tools here?</li> </ul>"},{"location":"the-top-10/c5-secure-by-default/","title":"C5: Secure By Default Configurations","text":""},{"location":"the-top-10/c5-secure-by-default/#description","title":"Description","text":"<p>\u201cSecure-by-Default\u201d means products are resilient against prevalent exploitation techniques out of the box without additional charge.<sup><sup>[2]</sup></sup> The benefit of having an application secure from the start is that it removes the burden away from developers on how to lock a system down, providing them with an already secure product. It reduces the effort required to deploy products in a secure manner and gives greater confidence that they will remain secure over time.</p>"},{"location":"the-top-10/c5-secure-by-default/#threats","title":"Threats","text":"<ul> <li>An attacker could gain unauthorized access by exploiting default, weak, or well-known credentials that haven't been changed from their out-of-the-box state.</li> <li>An attacker could take advantage of overly permissive default settings to access sensitive resources or perform unauthorized actions.</li> <li>An attacker could gather sensitive information by probing unnecessarily enabled features or services that are active by default.</li> <li>An attacker could conduct cross-site scripting (XSS) attacks by exploiting lenient default security headers that don't provide adequate protection against such threats.</li> </ul>"},{"location":"the-top-10/c5-secure-by-default/#implementation","title":"Implementation","text":"<p>In modern cloud applications, when developers build applications, they are also building the infrastructure for their applications, making infrastructure decisions, including security-critical configurations, while writing their code. These are deployed on infrastructure created and configured via code, Infrastructure-as-code (IaC), using configurations applied at the application level ( including web server and database), at container, Function as a Service, or infrastructure level. For example, in the case of web applications, folder permissions need to follow the principle of least privilege to limit resource access rights. When web and mobile applications are deployed in production, the debugging should be disabled.</p> <p>Is it important that when developers put together their infrastructure components, they:</p> <ol> <li>Implement configurations based on the Least privilege principle - for example: ensure that your cloud storage (S3 or other) is configured to be private and accessed by the minimum amount of time</li> <li>Access is denied by default and allowed via an allowed list</li> <li>Use container images that have been scanned for package and component vulnerabilities and pulled from a private container registry</li> <li>Prefer declarative infrastructure configuration over manual configuration activities. On a low-level, utilize Infrastructure-as-Code templates for automated provisioning and configuration of your cloud and on-premises infrastructure. On a high-level utilize Policy-as-Code to enforce policies including privilege assignments. Using a declarative format allows those policies to be managed similar to source code: checked-in into a source code management system, versioned, access-controlled, subject to change management, etc.</li> <li>Traffic encryption - by default or do not implement unencrypted communication channels in the first place</li> </ol>"},{"location":"the-top-10/c5-secure-by-default/#continuous-configurations-verification","title":"Continuous Configurations Verification","text":"<p>As part of software development, a developer needs to ensure that software is configured securely by default at the application level. For example,</p> <ul> <li>The code which defines the infrastructure should follow the principle of least privilege.</li> <li>Configurations and features that aren\u2019t required such as accounts, software, and demo capabilities should be disabled.</li> </ul>"},{"location":"the-top-10/c5-secure-by-default/#vulnerabilities-prevented","title":"Vulnerabilities Prevented","text":"<ul> <li>OWASP Top 10 2021 A05 \u2013 Security Misconfiguration</li> </ul>"},{"location":"the-top-10/c5-secure-by-default/#references","title":"References","text":"<ul> <li>OWASP Cheat Sheet: Infrastructure as Code Security Cheatsheet</li> <li>OWASP ASVS: Application Security Verification Standard V14 Configuration</li> <li>Cloud security guidance - NCSC.GOV.UK</li> </ul>"},{"location":"the-top-10/c5-secure-by-default/#tools","title":"Tools","text":"<ul> <li>Tfsec - open source static analysis for your Terraform templates</li> <li>Terrascan - scan for Infrastructure-as-Code vulnerabilities</li> <li>Checkov - Scan for open-source and Infrastructure-as-Code vulnerabilities</li> <li>Scout Suite is an open source multi-cloud security-auditing tool which currently supports: Amazon Web Services, Microsoft Azure, Google Cloud Platform</li> <li>prowler</li> <li>Cloudmapper</li> <li>Snyk - Scan for open-source, code, container, and Infrastructure-as-Code vulnerabilities</li> <li>Trivy - Scan for open-source, code, container, and Infrastructure-as-Code vulnerabilities</li> <li>KICS - Scan for Infrastructure-as-Code vulnerabilities</li> <li>Kubescape - Scan for Kubernetes vulnerabilities</li> <li>Kyverno - Securing Kubernetes using Policies</li> </ul>"},{"location":"the-top-10/c6-use-secure-dependencies/","title":"C6: Keep your Components Secure","text":""},{"location":"the-top-10/c6-use-secure-dependencies/#description","title":"Description","text":"<p>It is a common practice in software development to leverage libraries and frameworks. Secure libraries and software frameworks with embedded security help software developers prevent security-related design and implementation flaws. A developer writing an application from scratch might not have sufficient knowledge, time, or budget to properly implement or maintain security features. Leveraging security frameworks (both open source and vendor) help accomplish security goals more efficiently and accurately.</p> <p>When possible, the emphasis should be on using the existing secure features of frameworks rather than importing yet another third party libraries, which requires regular updates and maintenance. It is preferable to have developers take advantage of what they're already using instead of forcing yet another library on them.</p> <p>When incorporating third party libraries or frameworks into your software, it is important to consider the following two categories of best practices:</p> <ol> <li>Identify trusted libraries and frameworks to bring into your software.</li> <li>Monitor and update packages to ensure that your software is not vulnerable to the possible security vulnerabilities introduced by the third party components.</li> </ol>"},{"location":"the-top-10/c6-use-secure-dependencies/#threats","title":"Threats","text":"<ul> <li>An attacker could exploit known vulnerabilities in outdated third-party components to gain unauthorized access or execute malicious code.</li> <li>An attacker could conduct supply chain attacks by compromising libraries or frameworks used in the development process, potentially inserting malicious code into the final product.</li> <li>An attacker could extract sensitive information by exploiting insecure configurations in third-party components that haven't been properly hardened.</li> <li>An attacker could launch denial of service attacks by targeting known vulnerabilities in external libraries, potentially disrupting the availability of services.</li> </ul>"},{"location":"the-top-10/c6-use-secure-dependencies/#implementation","title":"Implementation","text":"<p>Below each of these categories are further detailed to help secure your software.</p>"},{"location":"the-top-10/c6-use-secure-dependencies/#best-practices-to-identify-trusted-libraries","title":"Best Practices to Identify Trusted libraries","text":"<p>Below are listed a few criteria you can use to select the next library or framework for your software. This is not an exhaustive list, but is a good start.</p> <ol> <li> <p>Sources: Download recommended security libraries from official sources over secure links and prefer signed packages to reduce the chance of including a modified, malicious component (See A08:2021-Software and Data Integrity Failures).</p> </li> <li> <p>Popularity: Leverage libraries and frameworks used by many applications which have around large communities. Consider data points such as the number of GitHub stars a package\u2019s source code repository has received, and number of downloads from within a package manager.</p> </li> <li> <p>Activity: Ensure that the library/ framework is actively maintained and issues are resolved in a timely fashion.</p> </li> <li> <p>Maturity: Use stable versions . Projects in early stages of development area higher risk to your software .</p> </li> <li> <p>Complexity: A large, complex library with lots of dependencies, is more difficult to incorporate into your software. Also, a high number of dependencies indicates a higher number of future upgrades to ensure all those dependencies are up-to-date and secured.</p> </li> <li> <p>Security: If the package is open source, you can use static application security testing (SAST) or Software Composition Analysis (SCA) to help identify malicious code or security weaknesses, before first including them.</p> </li> </ol>"},{"location":"the-top-10/c6-use-secure-dependencies/#best-practices-to-keep-them-secure","title":"Best Practices to Keep them Secure","text":"<p>New security vulnerabilities are disclosed every day and are published in public databases like the NIST National Vulnerability Database (NVD) which identifies publicly known vulnerabilities using Common Vulnerabilities and Exposures (CVE). Furthermore, exploits made available in public databases allow attackers to automate their attacks. As a result of this, it is important to ensure on a regular basis that your software is free of well-known security vulnerabilities.</p> <ol> <li> <p>Maintain an inventory catalog of all the third party components. It is recommended to automatically create SBOMs (Software-Bill-Of-Materials) from within the build pipeline. A SBOM contains all used third-party dependencies and their versions and can be automatically monitored by a variety of supply chain management tools.</p> </li> <li> <p>Perform continuous checks. Use your SBOMs together with periodic or continuous monitoring tools such as OWASP dependency-track to automatically detect well-known publicly disclosed vulnerabilities.</p> </li> <li> <p>Verify for security early and often - integrate SCA tools in early stages of software development, to gain visibility in the number and criticality of security vulnerabilities of the software and its dependencies from every stage of the software development lifecycle.</p> </li> <li> <p>Proactively update libraries and components. Updating software must be a recurring task that occurs throughout the lifecycle of the application or product, from ideation to retirement.</p> </li> </ol>"},{"location":"the-top-10/c6-use-secure-dependencies/#vulnerabilities-prevented","title":"Vulnerabilities Prevented","text":"<p>Secure frameworks and libraries can help to prevent a wide range of web application vulnerabilities. It is critical to keep these frameworks and libraries up to date as described in using vulnerable and outdated components with known vulnerabilities Top 10 2021.</p>"},{"location":"the-top-10/c6-use-secure-dependencies/#references","title":"References","text":"<ul> <li>OWASP Cheat Sheet: Third Party Javascript Management</li> <li>OpenSSF Scorecard - Security health metrics for Open Source</li> </ul>"},{"location":"the-top-10/c6-use-secure-dependencies/#tools","title":"Tools","text":"<ul> <li>OWASP Dependency-Check \u00ad- to identify project dependencies and check for publicly disclosed vulnerabilities</li> <li>OWASP Dependency-Track - periodically monitor SBOM files for new vulnerabilities</li> <li>Retire.JS scanner for JavaScript libraries</li> <li>Renovate for automated dependencies updates</li> <li>Harbor : an open source registry that secures artifacts with policies and role-based access control</li> </ul>"},{"location":"the-top-10/c7-implement-digital-identity/","title":"C7: Implement Digital Identity","text":""},{"location":"the-top-10/c7-implement-digital-identity/#description","title":"Description","text":"<p>Digital Identity is a unique representation of an individual, organization (or another subject) as they engage in an online transaction. Authentication is the process of verifying that an individual or entity is who they claim to be.</p> <p>Session management is the process by which a server maintains the state of the user\u2019s authentication so that the user may continue to use the system without re-authenticating. Digital identity, authentication, and session management are very complex topics. We're scratching the surface of the topic of Digital Identity here. Ensure that your most capable engineering talent is responsible for maintaining the complexity involved with most Identity solutions. The NIST Special Publication 800-63B: Digital Identity Guidelines (Authentication and Lifecycle Management provide solid guidance on implementing digital identity, authentication, and session management controls. Below are some recommendations for secure implementation to ensure strong digital identity controls are implemented in applications.</p>"},{"location":"the-top-10/c7-implement-digital-identity/#authentication-assurance-levels","title":"Authentication Assurance Levels","text":"<p>NIST 800-63b describes three levels of authentication assurance called Authentication Assurance Level (AAL):</p> <ul> <li>Level 1 : Passwords: The first level, AAL level 1 is reserved for lower-risk applications that do not contain PII or other private data. At AAL level 1 only single-factor authentication is required, typically through the use of a password (something you know). The security of passwords (or credentials in general) is of utmost importance, this includes both secure storage (using a key-derivation function and such) as well as corresponding processes, e.g. having a secure password-reset flow.</li> <li>Level 2 : Multi-Factor Authentication: NIST 800-63b AAL level 2 is reserved for higher-risk applications that contain \"self-asserted PII or other personal information made available online.\" At AAL level 2 multi-factor authentication is required including OTP or other forms of multi-factor implementation.</li> <li>Level 3 : Cryptographic Based Authentication: NIST 800-63b Authentication Assurance Level 3 (AAL3) is required when the impact of compromised systems could lead to personal harm, significant financial loss, harm the public interest or involve civil or criminal violations. AAL3 requires authentication that is \"based on proof of possession of a key through a cryptographic protocol.\" This type of authentication is used to achieve the strongest level of authentication assurance. This is typically done through hardware cryptographic modules. When developing web applications, this will commonly lead to WebAuthn or PassKeys.</li> </ul>"},{"location":"the-top-10/c7-implement-digital-identity/#level-2-multi-factor-authentication","title":"Level 2 : Multi-Factor Authentication","text":"<p>NIST 800-63b AAL level 2 is reserved for higher-risk applications that contain \"self-asserted PII or other personal information made available online.\" At AAL level 2 multi-factor authentication is required including OTP or other forms of multi-factor implementation. Multi-factor authentication (MFA) ensures that users are who they claim to be by requiring them to identify themselves with a combination of:</p> <ul> <li>Something you know \u2013 password or PIN</li> <li>Something you own \u2013 token or phone, when using a phone please use a standard authenticator application heeding standardized protocols such as FIDO2.</li> <li>Something you are \u2013 biometrics, such as a fingerprint Using passwords as a sole factor provides weak security. Multi-factor solutions provide a more robust solution by requiring an attacker to acquire more than one element to authenticate with the service. It is worth noting that biometrics, when employed as a single factor of authentication, are not considered acceptable secrets for digital authentication. They can be obtained online or by taking a picture of someone with a camera phone (e.g., facial images) with or without their knowledge, lifted from objects someone touches (e.g., latent fingerprints), or captured with high-resolution images (e.g., iris patterns). Biometrics must be used only as part of multi-factor authentication with a physical authenticator (something you own). For example, accessing a multi-factor one-time password (OTP) device will generate a one-time password that the user manually enters for the verifier.</li> </ul>"},{"location":"the-top-10/c7-implement-digital-identity/#level-3-cryptographic-based-authentication","title":"Level 3 : Cryptographic Based Authentication","text":"<p>NIST 800-63b Authentication Assurance Level 3 (AAL3) is required when the impact of compromised systems could lead to personal harm, significant financial loss, harm the public interest or involve civil or criminal violations. AAL3 requires authentication that is \"based on proof of possession of a key through a cryptographic protocol.\" This type of authentication is used to achieve the strongest level of authentication assurance. This is typically done through hardware cryptographic modules. When developing web applications, this will commonly lead to WebAuthn or PassKeys.</p>"},{"location":"the-top-10/c7-implement-digital-identity/#session-management-client-vs-server-side-sessions","title":"Session Management: client- vs server-side sessions","text":"<p>HTTP on its own is a session-less protocol: no data is shared between requests. When you look at how we are using the web, this is clearly not what is user-visible as for example you log into a website and stay logged in during subsequent requests. This is possible as session-management has been implemented on top of HTTP. Once the initial successful user authentication has taken place, an application may choose to track and maintain this authentication state for a limited amount of time. This will allow the user to continue using the application without having to keep re-authentication with each request. Tracking of this user state is called Session Management. Session-Management can be roughly categorized in client- and server-side session management. In the former, all session data is stored within the client and transmitted on each request to the server. The latter stores session-specific data on the server, e.g., in a database, and only transmits an identifier to the client. The client then submits only the session-identifier on each request and the server retrieves the session-data from the server-side storage.</p> <p>From a security-perspective server-side sessions have multiple benefits:</p> <ul> <li>Data is not directly stored on the client: this can be problematic, e.g., when handling sensitive data. In addition, client-side session-management solutions must ensure that client-side data has not been tampered with.</li> <li>Less data is transmitted between client and server (which is not as relevant as network bandwidth has increased)</li> <li>Server-side session-management allows for session-invalidation, e.g., a user can logout all of their sessions By default, always use server-side session management..</li> </ul>"},{"location":"the-top-10/c7-implement-digital-identity/#threats","title":"Threats","text":"<ul> <li>An attacker could hijack user sessions by stealing or predicting session tokens, potentially gaining unauthorized access to authenticated user accounts.</li> <li>An attacker could execute session fixation attacks by exploiting weak session management, forcing a user to use a known session identifier.</li> <li>An attacker could perform cross-site request forgery (CSRF) attacks on authenticated sessions, tricking users into unknowingly executing unwanted actions on a web application.</li> </ul>"},{"location":"the-top-10/c7-implement-digital-identity/#implementation","title":"Implementation","text":""},{"location":"the-top-10/c7-implement-digital-identity/#when-using-passwords","title":"When using Passwords","text":""},{"location":"the-top-10/c7-implement-digital-identity/#password-requirements","title":"Password Requirements","text":"<p>Passwords should comply with the following requirements at the very least:</p> <ul> <li>be at least 8 characters in length if multi-factor authentication (MFA) and other controls are also used. If MFA is not possible, this should be increased to at least 10 characters</li> <li>all printing ASCII characters as well as the space character should be acceptable in memorized secrets</li> <li>encourage the use of long passwords and passphrases</li> <li>remove complexity requirements as these have been found to be of limited effectiveness. Instead, the adoption of MFA or longer password lengths is recommended</li> <li>ensure that passwords used are not commonly used passwords that have been already been leaked in a previous compromise. You may choose to block the top 1000 or 10000 most common passwords which meet the above length requirements and are found in compromised password lists. The following link contains the most commonly found passwords: https://github.com/danielmiessler/SecLists/tree/master/Passwords</li> <li>Enforce password rotation, to avoid potential breaches due to the fact the same password is being used for a very long period of time</li> </ul>"},{"location":"the-top-10/c7-implement-digital-identity/#implement-secure-password-recovery-mechanism","title":"Implement Secure Password Recovery Mechanism","text":"<p>It is common for an application to have a mechanism for a user to gain access to their account in the event they forget their password. A good design workflow for a password recovery feature will use multi-factor authentication elements. For example, it may ask a security question - something they know, and then send a generated token to a device - something they own. Please see the Forgot_Password_Cheat_Sheet and Choosing_and_Using_Security_Questions_Cheat_Sheet for further details.</p>"},{"location":"the-top-10/c7-implement-digital-identity/#implement-secure-password-storage","title":"Implement Secure Password Storage","text":"<p>In order to provide strong authentication controls, an application must securely store user credentials. Furthermore, cryptographic controls should be in place such that if a credential (e.g., a password) is compromised, the attacker does not immediately have access to this information. Please see the OWASP Password Storage Cheat Sheet for further details.</p>"},{"location":"the-top-10/c7-implement-digital-identity/#server-side-session-management","title":"Server-Side Session-Management","text":"<p>Typically server-side session management is implemented with HTTP cookies which are used to store a session-identifier. When a new session is requested, the server generates a new session-identifier and transmits it to the client (browser). On each subsequent request, the session-identifier is transmitted from the client to the server, and the server uses this session-identifier to lookup session-data within a server-side database.</p>"},{"location":"the-top-10/c7-implement-digital-identity/#session-generation-and-expiration","title":"Session Generation and Expiration","text":"<p>User state is tracked in a session. This session is typically stored on the server for traditional web based session management. A session identifier is then given to the user so the user can identify which server-side session contains the correct user data. The client only needs to maintain this session identifier, which also keeps sensitive server-side session data off of the client. Here are a few controls to consider when building or implementing session management solutions:</p> <ul> <li>Ensure that the session id is long, unique and random, i.e., is of high entropy.</li> <li>The application should generate a new session during authentication and re-authentication.</li> <li>The application should implement an idle timeout after a period of inactivity and an absolute maximum lifetime for each session, after which users must re-authenticate. The length of the timeouts should be inversely proportional with the value of the data protected.</li> </ul> <p>Please see the Session Management Cheat Sheet further details. ASVS Section 3 covers additional session management requirements.</p>"},{"location":"the-top-10/c7-implement-digital-identity/#client-side-session-management","title":"Client-Side Session-Management","text":"<p>Server-side sessions can be limiting for some forms of authentication. \"Stateless services\" allow for client side management of session data for performance purposes so the server has less of a burden to store user sessions. These \"stateless\" applications typically generate a short-lived access token containing all of the current user\u2019s access permissions which is then included in all subsequent requests. Cryptography must be employed so that the client cannot alter the permissions stored within the token. When a client requests a server operation, the client includes the retrieved access token and the server verifies that the token has not been tampered with and extracts the permissions from the token. These permissions are then used for subsequent permission checks.</p>"},{"location":"the-top-10/c7-implement-digital-identity/#jwt-json-web-tokens","title":"JWT (JSON Web Tokens)","text":"<p>JSON Web Token (JWT) is an open standard (RFC 7519) that defines a compact and self-contained way for securely transmitting information between parties as a JSON object. This information can be verified and trusted as long as it is digitally signed by a trusted authority. A JWT token is created during authentication and is verified by the server (or servers) before any processing. However, JWTs are often not saved by the server after initial creation. JWTs are typically created and then handed to a client without being saved by the server in any way. The integrity of the token is maintained through the use of digital signatures so a server can later verify that the JWT is still valid and was not tampered with since its creation. This approach is both stateless and portable in the way that client and server technologies can be different yet still interact. Please note, that if you are using JWTs you have to make sure that the returned JWT is actually using one of the signing algorithms that you are using. Otherwise, an attacker could try to create a JWT signed with the NULL algorithm, use a MAC-vs-Signature confusion attack, or provide a custom JWS key for signing. When you are issuing JWTs, make double-sure that you are using a secure private key for signing the JWTs: each output JWT gives an attacker all information needed to perform an offline cracking attack, so you should rotate keys frequently too.</p>"},{"location":"the-top-10/c7-implement-digital-identity/#browser-cookies","title":"Browser Cookies","text":"<p>Browser cookies are a common method for web applications to store session identifiers for web applications implementing standard session management techniques. Here are some defenses to consider when using browser cookies.</p> <ul> <li>When browser cookies are used as the mechanism for tracking the session of an authenticated user, these should be accessible to a minimum set of domains and paths and should be tagged to expire at, or soon after, the session\u2019s validity period.</li> <li>Please be aware that not explicitly stating a domain during cookie setup will use the current origin as domain. This is a sensible default.</li> <li>Please be aware, that while stating a path during cookie setup will limit the browser to only submit the cookie if the request lies within the stated path. This protects the cookie of one application from being accessed by another application within a different path on the same server. This protection is brittle: if the \u201cother\u201d application has an XSS vulnerability and the attacker can introduce iframes, the \u201cpath\u201d protection can be circumvented.</li> <li>The \u2018secure\u2019 flag should be set to ensure the transfer is done via secure channel only (TLS).</li> <li>HttpOnly flag should be set to prevent the cookie from being accessed via JavaScript.</li> <li>Adding \u201csamesite\u201d attributes to cookies prevents some modern browsers from sending cookies with cross-site requests and provides protection against cross-site request forgery and information leakage attacks.</li> </ul>"},{"location":"the-top-10/c7-implement-digital-identity/#vulnerabilities-prevented","title":"Vulnerabilities Prevented","text":"<ul> <li>A07:2021 \u2013 Identification and Authentication Failures</li> <li>OWASP Mobile Top 10 2016-M4- Insecure Authentication</li> </ul>"},{"location":"the-top-10/c7-implement-digital-identity/#references","title":"References","text":"<ul> <li>OWASP Cheat Sheet: Authentication</li> <li>OWASP Cheat Sheet: Password Storage</li> <li>OWASP Cheat Sheet: Forgot Password</li> <li>OWASP Cheat Sheet: Choosing and Using Security Questions</li> <li>OWASP Cheat Sheet: Session Management</li> <li>NIST Special Publication 800-63 Revision 3 - Digital Identity Guidelines</li> </ul>"},{"location":"the-top-10/c7-implement-digital-identity/#tools","title":"Tools","text":"<ul> <li>Daniel Miessler: Most commonly found passwords</li> </ul>"},{"location":"the-top-10/c8-help-the-browser-defend-the-user/","title":"C8: Leverage Browser Security Features","text":""},{"location":"the-top-10/c8-help-the-browser-defend-the-user/#description","title":"Description","text":"<p>Browsers are the gateway to the web for most users. As such, it's critical to employ robust security measures to protect the user from various threats. This section outlines the techniques and policies that can be implemented to bolster browser security.</p> <p>While we are currently focusing upon traditional web browsers, please note that there is a diverse world of other client programs out there, ranging from API clients to smart-tvs.</p>"},{"location":"the-top-10/c8-help-the-browser-defend-the-user/#opportunistic-security-and-browser-support","title":"Opportunistic Security and Browser-Support","text":"<p>Instructing the web browser to enforce security measures is always opportunistic: the web application cannot verify that the browser heeds the guidance given and thus these security measures should always be seen as additional (and optional) Hardening Measures that further complicate an attacker\u2019s life.</p> <p>In addition, web browsers must actually support the security guidance offered by web applications. The level of support differs between different browsers and their versions. Web sites such as https://caniuse.com can be used to check which web browser (versions) support which features. The supported security features can change over time, e.g., the X-XSS-Protection header has been removed from all major browsers; the browsers\u2019 default behavior can change over time as seen with Referrer-Policy; and even the semantics of existing headers can change over time as seen with X-Content-Type-Options.</p> <p>While the changing browser feature set can be problematic, typically newer browser provide more security features. They sometimes even enable them by default. Explicitly setting those security headers can unify the different browsers\u2019 behaviors and thus reduces maintenance effort.</p> <p>A fully compromised browser might not heed security guidance but if an adversary was able to take full control of a browser, they already have far more damaging attack paths than just ignoring security guidance.</p>"},{"location":"the-top-10/c8-help-the-browser-defend-the-user/#threats","title":"Threats","text":"<ul> <li>An attacker could execute cross-site scripting (XSS) attacks by exploiting inadequate Content Security Policy settings, potentially injecting malicious scripts into web pages.</li> <li>An attacker could perform clickjacking attacks by taking advantage of missing X-Frame-Options headers, potentially tricking users into unintended interactions with disguised web elements.</li> <li>An attacker could gather sensitive information through <code>Referer</code> HTTP headers when proper Referrer-Policy is not set, potentially exposing private data or user activities.</li> <li>An attacker could exploit MIME type confusion vulnerabilities in the absence of X-Content-Type-Options headers, potentially executing malicious scripts disguised as benign file types.</li> <li>An attacker could hijack user sessions by exploiting insecure cookie settings, potentially gaining unauthorized access to user accounts.</li> <li>An attacker could perform DNS rebinding attacks in the absence of proper DNS pinning, potentially bypassing same-origin policy restrictions.</li> <li>An attacker could exploit cross-origin resource sharing (CORS) misconfigurations to gain unauthorized access to resources, potentially compromising data confidentiality and integrity.</li> </ul>"},{"location":"the-top-10/c8-help-the-browser-defend-the-user/#implementation","title":"Implementation","text":"<p>Typically, there are two (Security Header specific) ways that web applications can use to instruct web browsers about security: HTTP headers and HTML tags.</p> <p>The behavior taken if a security directive is given more than one time is security header specific. For example, a duplicate X-Frame-Options header will disable its protection while a duplicate Content-Security-Policy header will lead to a stricter policy thus tightening its security. The following is a non-exhaustive list of potential Hardening mechanisms:</p>"},{"location":"the-top-10/c8-help-the-browser-defend-the-user/#configure-the-browser-to-prevent-information-disclosure","title":"Configure the Browser to prevent Information Disclosure","text":"<p>Information disclosure occurs if the browser transmits information over unencrypted channels (HTTP instead of HTTPS) or sends our too much information in the first place (e.g., through the Referer-Header). The following mechanisms reduce the possibility of information disclosure:</p> <ul> <li>HTTP Strict Transport Security (HSTS): Ensures that browsers only connect to your website over HTTPS, preventing SSL stripping attacks.</li> <li>Content Security Policy (CSP): CSP policies can instruct the browser to automatically upgrade HTTP connections to HTTPS. In addition directives such as the form-src directive can be used to prevent forms from transmitting data to external sites.</li> <li>Referrer-Policy: when navigating between pages, the browser\u2019s HTTP request includes the current URL within the outgoing request. This URL can include sensitive information. Using Referrer-Policy, a web-site can unify the browser\u2019s behavior and select which information should be transmitted between web sites.</li> <li>The cookie\u2019s secure flag: while not a HTTP header, this security flag is related to information disclosure. If set, the web browser will not transmit a cookie over unencrypted HTTP transports.</li> </ul>"},{"location":"the-top-10/c8-help-the-browser-defend-the-user/#reduce-the-potential-impact-of-xss","title":"Reduce the potential Impact of XSS","text":"<p>Javascript based XSS attacks have been very common for decades. To reduce the potential impact of vulnerabilities, browsers offer rich defensive mechanisms that should reduce the potential impact of XSS attacks:</p> <ul> <li>Content Security Policy (CSP): CSP is a powerful tool that helps prevent a wide range of attacks including Cross-Site Scripting (XSS) and data injection. Strict CSP policies can effectively disable inline JavaScript and style, making it much harder for attackers to inject malicious content. Host Allowlist CSP: Blocking all third-party JavaScript can significantly reduce the attack surface and prevent the exploitation of vulnerabilities in third-party libraries. Strict CSP: A CSP utilizing nonces or hashes in the 'script-src' directive (often referred to as \"strict CSP\") provides a robust mitigation against XSS vulnerabilities. Optionally, the use of the CSP 'strict-dynamic' keyword can help to streamline the implementation of a strict CSP and to ensure compatibility with third-party JavaScript libraries when required.     Trusted Types: This is a browser API that helps prevent DOM-based cross-site scripting vulnerabilities by ensuring only secure data types can be inserted into the DOM.</li> <li>The cookie\u2019s httpOnly flag: while not a HTTP header, setting this flag prevents Javascript from accessing this cookie and should be done esp. For Session cookies.</li> </ul>"},{"location":"the-top-10/c8-help-the-browser-defend-the-user/#prevent-clickjacking","title":"Prevent Clickjacking","text":"<p>Clickjacking, also known as UI-redress attacks, try to confuse users by overlaying a malicious site on top of a benign one. The user believes to interact with the benign one while in reality they are interacting with the malicious one.</p> <ul> <li>X-Frame-Options (XFO): Prevents clickjacking attacks by ensuring your content is not embedded into other sites. This header is finicky to use, e.g., when used twice it is disabled.</li> <li>Content Security Policy (CSP): the different frame-* directives allow for fine-grained control of which sites are allowed to include the current website as well as which other sites can be included within the current website.</li> </ul>"},{"location":"the-top-10/c8-help-the-browser-defend-the-user/#control-the-browsers-advanced-capabilities","title":"Control the Browser\u2019s Advanced Capabilities","text":"<p>Modern browsers do not only display HTML code but are used to interface with multiple system components such as WebCams, Microphones, USB Devices, etc. While many websites do not utilize those features, attackers can abuse those.</p> <ul> <li>Permission Policy: through a permission policy a web-site can instruct the browser that the defined features will not be used by the web-site. For example, a web-site can state that it will never capture user audio. Even if an attacker is able to inject malicious code, they can thus not instruct the web-browser to capture audio.</li> </ul>"},{"location":"the-top-10/c8-help-the-browser-defend-the-user/#prevent-csrf-attacks","title":"Prevent CSRF Attacks","text":"<p>CSRF attacks abuse an existing trust relationship between the web browser and web sites.</p> <ul> <li>Same-Origin Cookies: Marking cookies as SameSite can mitigate the risk of cross-origin information leakage, as well as provide some protection against cross-site request forgery attacks.</li> <li>Fetch Metadata Request Headers: Checking Fetch Metadata request headers on the server-side allows deploying a strong defense-in-depth mechanism\u2014a Resource Isolation Policy\u2014to protect your application against common cross-origin attacks like CSRF.</li> </ul>"},{"location":"the-top-10/c8-help-the-browser-defend-the-user/#vulnerabilities-prevented","title":"Vulnerabilities Prevented","text":"<p>Implementing these browser defenses can help mitigate a range of vulnerabilities, including but not limited to:</p> <ul> <li>Cross-Site Scripting (XSS)</li> <li>Cross-Site Request Forgery (CSRF)</li> <li>Clickjacking</li> <li>Data Theft through insecure transmission</li> <li>Session Hijacking</li> <li>Abusing unintended browser hardware access (microphone, cameras, etc.)</li> </ul>"},{"location":"the-top-10/c8-help-the-browser-defend-the-user/#tools","title":"Tools","text":"<ul> <li>Web Check</li> <li>Security Headers</li> <li>Mozilla Observatory</li> <li>CSP Evaluator</li> </ul>"},{"location":"the-top-10/c8-help-the-browser-defend-the-user/#references","title":"References","text":"<ul> <li>Content Security Policy (CSP)</li> <li>Strict Content Security Policy</li> <li>Trusted Types</li> <li>OWASP Secure Headers Project</li> <li>Security Headers Quick Reference</li> <li>Fetch Metadata Request Headers</li> <li>Fetch Metadata Resource Isolation Policy</li> <li>Canisue.com</li> </ul>"},{"location":"the-top-10/c9-security-logging-and-monitoring/","title":"C9: Implement Security Logging and Monitoring","text":""},{"location":"the-top-10/c9-security-logging-and-monitoring/#description","title":"Description","text":"<p>Logging is a concept that most developers already use for debugging and diagnostic purposes. Security logging is an equally basic concept: to log security information during the runtime operation of an application. Monitoring is the live review of application and security logs using various forms of automation. The same tools and patterns can be used for operations, debugging and security purposes.</p>"},{"location":"the-top-10/c9-security-logging-and-monitoring/#benefits-of-security-logging","title":"Benefits of Security Logging","text":"<p>Security logging can be used for:</p> <ol> <li>Feeding intrusion detection systems</li> <li>Forensic analysis and investigations</li> <li>Satisfying regulatory compliance requirements</li> </ol>"},{"location":"the-top-10/c9-security-logging-and-monitoring/#logging-for-intrusion-detection-and-response","title":"Logging for Intrusion Detection and Response","text":"<p>Use logging to identify activity that indicates that a user is behaving maliciously. Potentially malicious activity to log includes:</p> <ul> <li>Submitted data that is outside of an expected numeric range.</li> <li>Submitted data that involves changes to data that should not be modifiable (select list, checkbox or other limited entry component).</li> <li>Requests that violate server-side access control rules.</li> <li>A more comprehensive list of possible detection points is available here. When your application encounters such activity, your application should at the very least log the activity and mark it as a high severity issue. Ideally, your application should also respond to a possible identified attack, by for example invalidating the user\u2019s session and locking the user\u2019s account. The response mechanisms allow the software to react in realtime to possible identified attacks.</li> </ul>"},{"location":"the-top-10/c9-security-logging-and-monitoring/#secure-logging-design","title":"Secure Logging Design","text":"<p>Logging solutions must be built and managed in a secure way. Secure Logging design may include the following:</p> <ul> <li>Allow expected characters only and/or encode the input based on the target to prevent log injection attacks. The preferred approach would be that the logging solution performs input escaping instead of dropping data: otherwise the logging solution might discard data which would be needed for a later analysis.</li> <li>Do not log sensitive information. For example, do not log password, session ID, credit cards, or social security numbers.</li> <li>Protect log integrity. An attacker may attempt to tamper with the logs. Therefore, the permission of log files and log changes audit should be considered.</li> <li>Forward logs from distributed systems to a central, secure logging service. This will ensure log data cannot be lost if one node is compromised. This also allows for centralized or even automated monitoring.</li> </ul>"},{"location":"the-top-10/c9-security-logging-and-monitoring/#threats","title":"Threats","text":"<ul> <li>An attacker could perform log injection attacks by manipulating log entries, potentially inserting malicious data or commands into log files.</li> <li>An attacker could gain unauthorized access to sensitive information through overly verbose logging practices that inadvertently capture and store confidential data.</li> <li>An attacker could engage in log tampering to cover tracks of malicious activities, potentially erasing or modifying evidence of their intrusion.</li> <li>An attacker could launch denial of service attacks by overwhelming logging systems with a flood of data, potentially disrupting normal system operations or obscuring other malicious actions.</li> <li>An attacker could gain unauthorized access to log files due to improper access controls, potentially exposing sensitive system information or user data.</li> <li>An attacker could engage in log forging to create false audit trails, potentially misleading investigators or framing innocent parties for malicious activities.</li> <li>An attacker could take advantage of insufficient logging practices to conduct malicious activities without detection, potentially prolonging their unauthorized access to systems.</li> <li>An attacker could exploit log file race conditions in multi-threaded applications, potentially corrupting log data or gaining unauthorized access to sensitive information.</li> <li>An attacker could perform replay attacks using information gleaned from logs, potentially reusing captured data to impersonate legitimate users or repeat authenticated actions.</li> </ul>"},{"location":"the-top-10/c9-security-logging-and-monitoring/#implementation","title":"Implementation","text":"<p>The following is a list of security logging implementation best practices.</p> <ul> <li>Follow a common logging format and approach within the system and across systems of an organization. An example of a common logging framework is the Apache Logging Services which helps provide logging consistency between Java, PHP, .NET, and C++ applications.</li> <li>Do not log too much or too little. For example, make sure to always log the timestamp and identifying information including the source IP and user-id, but be careful not to log private (such as username) or confidential data (such as business data) unless extra care is taken.</li> <li>Pay close attention to time syncing across nodes to ensure that timestamps are consistent.</li> </ul>"},{"location":"the-top-10/c9-security-logging-and-monitoring/#vulnerabilities-prevented","title":"Vulnerabilities Prevented","text":"<ul> <li>Brute-Force Attacks against Login-Mechanisms</li> </ul>"},{"location":"the-top-10/c9-security-logging-and-monitoring/#references","title":"References","text":"<ul> <li>Logging Cheat Sheet</li> <li>OWASP Logging Guide</li> </ul>"},{"location":"the-top-10/c9-security-logging-and-monitoring/#tools","title":"Tools","text":""},{"location":"the-top-10/introduction/","title":"Introduction","text":"<p>For years, developers have suffered through introducing the same security issues into the things they build. The most common issues, which have existed for decades, have been documented by the OWASP Top Ten. Many of the issues in the earliest version still exist in some form today. A mechanism is needed to counter these challenges, and that mechanism is proactive controls.</p> <p>Proactive controls are a catalog of better practices, a set of items developers can embrace and implement in their code bases to avoid many common security issues. Proactive controls provide positive patterns to implement solutions considered secure by design.</p> <p>Imagine working on a web-based software, releasing a new version, and then getting reports that it contained a security vulnerability that is now being exploited in the wild. You are now forced to act reactively: analyzing the vulnerability, fixing it, creating a new software release, and getting it to your users. All this is tedious and a bit awkward, esp. When the security vulnerability was critical.</p> <p>Proactive controls prevent this by focusing on the development itself. Their idea is to prevent common vulnerabilities during an application's inception so that those tedious and embarrassing bug fixes can be avoided altogether. Common knowledge is that a proactive approach will save resources and money in the long run.</p> <p>The OWASP Top 10 Proactive Controls 2024 is a list of security techniques every software architect and developer should know and heed. The main goal of this document is to provide concrete, practical guidance that helps developers build secure software. These techniques should be applied proactively at the early stages of software development to ensure maximum effectiveness.</p> <p>Please note that while complying with best proactive practices will reduce the chance of a vulnerability being in your code, there is no guarantee that code is security-bug free. And that\u2019s okay: You have to break an egg to make an omelet \u2014 the only way of not introducing any security bugs is not to code at all. We accept that while striving to prevent as many security issues as possible.</p>"},{"location":"the-top-10/introduction/#how-this-list-was-created","title":"How this List Was Created","text":"<p>This list was originally created by the current project leads with contributions from several volunteers. The document was then shared globally so even anonymous suggestions could be considered. Hundreds of changes were accepted from this open community process.</p>"},{"location":"the-top-10/introduction/#security-controls","title":"Security Controls","text":"<p>The description of each control has the same structure. The control itself has an unique name preceeded by the control number: Cx: Control Name, e.g., C1: Implement Access Control.</p> <p>Each control has the same sections:</p> <ul> <li>Description: A detailed description of the control including some best practices to consider.</li> <li>Threat(s): A threat or threats that this control counters.</li> <li>Implementation: Best practices and examples to illustrate how to implement each control.</li> <li>Vulnerabilities Prevented: List of prevented vulnerabilities or risks addressed (OWASP TOP 10 Risk, CWE, etc.)</li> <li>References: List of references for further study (OWASP Cheat sheet, Security Hardening Guidelines, etc.)</li> <li>Tools: Set of tools/projects to easily introduce/integrate security controls into your software.</li> </ul>"}]}
\ No newline at end of file
+{"config":{"lang":["en"],"separator":"[\\s\\-]+","pipeline":["stopWordFilter"]},"docs":[{"location":"","title":"About this Project","text":"<p>Insecure software is undermining our financial, healthcare, defense, energy, and other critical infrastructure worldwide. As our digital, global infrastructure gets increasingly complex and interconnected, the difficulty of achieving application security increases exponentially. We can no longer afford to tolerate relatively simple security problems.</p>"},{"location":"#aim-objective","title":"Aim &amp; Objective","text":"<p>The goal of the OWASP Top 10 Proactive Controls project is to raise awareness about application security by describing the most important areas of concern that software developers must be aware of. We encourage you to use the OWASP Proactive Controls to get your developers started with application security. Developers can learn from the mistakes of other organizations. We hope that the OWASP Proactive Controls is useful to your efforts in building secure software.</p>"},{"location":"#target-audience","title":"Target Audience","text":"<p>This document is primarily written for developers. However, development managers, product owners, Q/A professionals, program managers, and anyone involved in building software can also benefit from this document.</p>"},{"location":"#how-to-use-this-document","title":"How to Use this Document","text":"<p>This document\u2019s main purpose is to provide a solid foundation of topics to help drive introductory software security developer training. To be effective, these controls should be used consistently and thoroughly throughout all applications.</p> <p>However, this document is a starting point rather than a comprehensive set of techniques and practices.</p> <p>A fully secure development process should include comprehensive requirements from a standard such as the OWASP ASVS in addition to including a range of software development activities described in maturity models such as OWASP SAMM and BSIMM.</p>"},{"location":"#project-leaders","title":"Project Leaders","text":"<ul> <li>Andreas Happe, connect through linkedin, github, twitter/x</li> <li>Jim Manico, connect through linkedin, github, twitter/x</li> <li>Katy Anton, connect through linkedin, github, twitter/x</li> </ul>"},{"location":"#copyright-and-licence","title":"Copyright and Licence","text":"<p>This document is released under the Creative Commons Attribution-ShareAlike 4.0 International license. For any reuse or distribution, you must make it clear to others the license terms of this work.</p>"},{"location":"final-word/","title":"Final word","text":"<p>This document should be seen as a starting point rather than a comprehensive set of techniques and practices. We want to again emphasize that this document is intended to provide initial awareness around building secure software.</p> <p>Good next steps to help build an application security program include:</p> <ol> <li>To understand some of the risks in web application security please review the OWASP Top Ten .</li> <li>A secure development program should include a comprehensive list of security requirements .  Use Threat Modeling to identify potential security threats, derive security requirements, and tailor security controls to prevent those. Use standards such as the OWASP (Web) ASVS and the OWASP (Mobile) MASVS which provides a catalog of available security requirements along with the  relevant verification criteria.</li> <li>To understand the core building blocks of a secure software program from a more macro point of view please review the OWASP OpenSAMM project.</li> </ol>"},{"location":"about-top-10/contributors/","title":"Contributors","text":"<p>This document would not have been possible without our contributors for which we are grateful.</p> <p>From the shared 2024 document and according to github:</p> <ul> <li>Chris Romeo</li> <li>Jasmin Mair</li> <li>Abdessamad Temmar</li> <li>Carl Sampson</li> <li>Eyal Estrin</li> <li>Israel Chorzevski</li> <li>Zoe Braiterman</li> <li>Timo Pagel</li> <li>ThreeHoolagins</li> <li>Wallace Soares</li> <li>Aref Shaheed</li> <li>ThunderSon</li> <li>Marcus Fenstrom</li> <li>Datz</li> <li>Josh Grossman</li> <li>Tomas Coiro</li> <li>Dr. Pi3ch</li> <li>Ishaq Mohammed</li> <li>Richard Tweed</li> <li>Derek Gary</li> <li>Starr Brown</li> <li>Thomas</li> <li>Christian Capellan</li> <li>Adriaan Joubert</li> </ul>"},{"location":"about-top-10/contributors/#contributors-from-previous-versions","title":"Contributors from previous versions","text":"<ul> <li>Massimiliano Graziani (Italian Translation)</li> <li>Taras Ivashchenko  (Russian Translation)</li> <li>Jay Zudilin (Russian Translation)</li> <li>Danny Harris</li> <li>Hiroaki Kuramochi (Japanese Translation)</li> <li>Hiroshi Fujimoto (Japanese Translation)</li> <li>Hidenori Nagai (Japanese Translation)</li> <li>Riotaro OKADA (Japanese Translation)</li> <li>Robert Dracea (Japanese Translation)</li> <li>Koichiro Watanabe (Japanese Translation)</li> <li>Tony Hsu Hsiang Chih (Chinese Translation)</li> <li>Cyrille Grandval (French Translation)</li> <li>Fr\u00e9d\u00e9ric Baillon (French Translation)</li> <li>Danny Harris</li> <li>Stephen de Vries</li> <li>Andrew Van Der Stock</li> <li>Gaz Heyes</li> <li>Colin Watson</li> <li>Jason Coleman</li> <li>Cassio Goldschmidt</li> <li>Dan Anderson</li> <li>David Cybuck</li> <li>Dave Ferguson</li> <li>Osama Elnaggar</li> <li>Rick Mitchell</li> </ul>"},{"location":"about-top-10/in-the-news/","title":"OWASP Top 10 Proactive Controls in the News","text":""},{"location":"about-top-10/in-the-news/#2024","title":"2024","text":"<p>Introduction of the OWASP Top 10 Proactive Controls v4 and switch to new wiki system.</p> <ul> <li>[6 Feb 2024] Featured in <code>gbhackers.</code> post OWASP Top 10 Proactive Security Controls For Software Developers to Build Secure Software</li> </ul>"},{"location":"about-top-10/in-the-news/#2022","title":"2022","text":"<ul> <li>[10 Nov 2022] Blog Post by Kerr</li> <li>[13 June 2022] Featured on the GitHub Blog</li> </ul>"},{"location":"about-top-10/in-the-news/#2021","title":"2021","text":"<ul> <li>[12 Feb 2021] Featured in oneconsult's post OWASP Top 10 Proactive Controls \u2013 Teil 1</li> </ul>"},{"location":"about-top-10/in-the-news/#2020","title":"2020","text":"<ul> <li>[5 Nov 2020] Featured by Snyk in Developing secure software: how to implement the OWASP top 10 Proactive Controls</li> </ul>"},{"location":"about-top-10/in-the-news/#2019","title":"2019","text":"<ul> <li>[July 2019] Featured in Coursera course from UCDavies     Identifying Security Vulnerabilities</li> <li>[23 June 2019] Featured on HackerCombat: Implement OWASP Proactive Controls to Work</li> <li>[7 June 2019] Feature on OWASP DevSlop Show Proactive Controls</li> <li>[15 May 2019] Featured in TechBeacon: Put OWASP Top 10 Proactive Controls to work</li> <li>[2 Mar 2019] Webinar: The OWASP Top Ten Proactive Controls with Jim Manico</li> </ul>"},{"location":"about-top-10/in-the-news/#2018","title":"2018","text":"<p>The OWASP Top 10 Proactive Controls 2018 (v3) were released.</p> <ul> <li>[Dec 2018] Featured as the resource for Security \u201cShifting to the Left\u201d! in the ISC2 course: \"DevSecOps: Integrating Security into DevOps\u201d</li> <li>[20 Sep 2018] Featured in TechBeacon: OWASP Top 10 Proactive Controls 2018: How it makes your code more secure</li> <li>[17 Sep 2018] Binary Blogger Podcast Episodes: OWASP Top 10 Proactive Controls Podcast Episodes</li> <li>[9 May 2018] Featured in Developer's security guide: 50 online resources to shift left</li> <li>[7 May 2018] 3.0 released!</li> </ul>"},{"location":"about-top-10/in-the-news/#2017","title":"2017","text":"<ul> <li>[11 Aug 2017] Presented at Northeast PHP Conference</li> <li>[25 July 2017] Podcast about at OWASP Top 10 Proactive Controls</li> <li>[12 May 2017] Presented at AppSec EU'17 -    Belfast</li> <li>[14 Feb 2017] Featured in Managing Cloud Infrastructure to Prevent Security    Gaps</li> <li>[Feb 2017 ] Featured in \"Application Security Program: Protect    Against Data Breaches\"</li> </ul>"},{"location":"about-top-10/in-the-news/#2016","title":"2016","text":"<p>The OWASP Top 10 Proactive Controls 2016 (v2) were released on Jan 14, 2016.</p> <ul> <li>[1 Oct 2016] Presented at PHPNW16</li> <li>[5 July 2016] Featured in Incorporating Security Best Practices     into Agile   Teams</li> <li>[June 2016 ] Featured in A Transformative Approach to Secure    Systems    Delivery</li> <li>[2 June 2016] Featured in DevOpsSec - Securing Software through    Continuous    Delivery</li> </ul>"},{"location":"about-top-10/old-versions-and-translations/","title":"Old Versions and Translations","text":"<p>Starting with version <code>v4</code> in 2024, we don't accept inclusion of translations into the OWASP Top 10 Proactive Controls directly and are only providing the English version.</p> <p>We do encourage translators to create translated versions and host them themselves and will link to those external sites/documents if notified about them.</p>"},{"location":"about-top-10/old-versions-and-translations/#owasp-top-10-proactive-controls-2018-v3","title":"OWASP Top 10 Proactive Controls 2018 (v3)","text":"<p>You can find the OWASP Top 10 Proactive Controls 2018 on GitHub:</p> <ul> <li>English version: pdf, docx, pptx</li> <li>Available Translations (in alphabetical order):</li> <li>Arabic: pdf</li> <li>Brazilian Portuguese: pdf</li> <li>Chinese: pdf</li> <li>Italian: pdf</li> <li>Spanish: pdf</li> <li>Polish: pdf</li> <li>Russian: pdf</li> </ul> <p>We also provide a Mapping to the OWASP Top 10 and IEEE Top 10.</p>"},{"location":"about-top-10/old-versions-and-translations/#owasp-top-10-proactive-controls-2016-v2","title":"OWASP Top 10 Proactive Controls 2016 (v2)","text":"<p>You can find the OWASP Top 10 Proactive Controls 2016 (v2) on GitHub:</p> <ul> <li>English version: pdf, docx, pptx</li> <li>Available Translations (in alphabetical order):</li> <li>Chinese: pdf</li> <li>Hebrew: pdf</li> <li>Japanese: pdf</li> <li>Simplified Chinese: pdf</li> </ul>"},{"location":"about-top-10/old-versions-and-translations/#owasp-top-10-proactive-controls-2014-v1","title":"OWASP Top 10 Proactive Controls 2014 (v1)","text":"<p>They might be somewhere..</p>"},{"location":"archive/2014/","title":"OWASP Top 10 Proactive Controls v1/2014","text":"<ul> <li>OWASP-2014-C1: Parameterize Queries</li> <li>OWASP-2014-C2: Encode Data</li> <li>OWASP-2014-C3: Validate All Inputs</li> <li>OWASP-2014-C4: Implement Appropriate Access Controls</li> <li>OWASP-2014-C5: Establish Identity and Authentication Controls</li> <li>OWASP-2014-C6: Protect Data and Privacy</li> <li>OWASP-2014-C7: Implement Logging, Error Handling and Intrusion Detection</li> <li>OWASP-2014-C8: Leverage Security Features of Frameworks and Security Libraries</li> <li>OWASP-2014-C9: Include Security-Specific Requirements</li> <li>OWASP-2014-C10: Design and Architect Security In</li> </ul>"},{"location":"archive/2016/","title":"OWASP Top 10 Proactive Controls v2 (2016)","text":"<ul> <li>OWASP-2016-C1: Verify for Security Early and Often</li> <li>OWASP-2016-C2: Parameterize Queries</li> <li>OWASP-2016-C3: Encode Data</li> <li>OWASP-2016-C4: Validate All Inputs</li> <li>OWASP-2016-C5: Implement Identity and Authentication Controls</li> <li>OWASP-2016-C6: Implement Appropriate Access Controls</li> <li>OWASP-2016-C7: Protect Data</li> <li>OWASP-2016-C8: Implement Logging and Intrusion Detection</li> <li>OWASP-2016-C9: Leverage Security Frameworks and Libraries</li> <li>OWASP-2016-C10: Error and Exception Handling</li> </ul>"},{"location":"archive/2018/0x01-about-owasp/","title":"About OWASP","text":"<p>The Open Web Application Security Project (OWASP) is a 501c3 non for profit educational charity dedicated to enabling organizations to design, develop, acquire, operate, and maintain secure software. All OWASP tools, documents, forums, and chapters are free and open to anyone interested in improving application security. We can be found at www.owasp.org.</p> <p>OWASP is a new kind of organization. Our freedom from commercial pressures allows us to provide unbiased, practical, cost effective information about application security.</p> <p>OWASP is not affiliated with any technology company. Similar to many open source software projects, OWASP produces many types of materials in a collaborative and open way. The OWASP Foundation is a not-for-profit entity that ensures the project's long-term success.</p>"},{"location":"archive/2018/0x02-about-project/","title":"About this Project","text":"<p>Insecure software is undermining our financial, healthcare, defense, energy, and other critical infrastructure worldwide. As our digital, global infrastructure gets increasingly complex and interconnected, the difficulty of achieving application security increases exponentially. We can no longer afford to tolerate relatively simple security problems.</p>"},{"location":"archive/2018/0x02-about-project/#aim-objective","title":"Aim &amp; Objective","text":"<p>The goal of the OWASP Top 10 Proactive Controls project (OPC) is to raise awareness about application security by describing the most important areas of concern that software developers must be aware of. We encourage you to use the OWASP Proactive Controls to get your developers started with application security. Developers can learn from the mistakes of other organizations. We hope that the OWASP Proactive Controls is useful to your efforts in building secure software.</p>"},{"location":"archive/2018/0x02-about-project/#call-to-action","title":"Call to Action","text":"<p>Please don\u2019t hesitate to contact the OWASP Proactive Control project with your questions, comments, and ideas, either publicly to our email list or privately to jim@owasp.org, mailto:jim@owasp.org.</p>"},{"location":"archive/2018/0x02-about-project/#copyright-and-licence","title":"Copyright and Licence","text":"<p>This document is released under the Creative Commons Attribution ShareAlike 3.0 license. For any reuse or distribution, you must make it clear to others the license terms of this work.</p>"},{"location":"archive/2018/0x02-about-project/#project-leaders","title":"Project Leaders","text":"<ul> <li>Katy Anton </li> <li>Jim Bird </li> <li>Jim Manico </li> </ul>"},{"location":"archive/2018/0x02-about-project/#contributors","title":"Contributors","text":"<ul> <li>Chris Romeo  \u00a0 | Dan Anderson  \u00a0 |  David Cybuck </li> <li>Dave Ferguson | Josh Grossman | Osama Elnaggar</li> <li>Colin Watson \u00a0 | Rick Mitchell \u00a0 |  And many more\u2026  </li> </ul>"},{"location":"archive/2018/0x03-about-structure/","title":"Document Structure","text":"<p>This document is structured as a list of security controls. Each control is described as follows:</p>"},{"location":"archive/2018/0x03-about-structure/#cx-control-name","title":"Cx: Control Name","text":""},{"location":"archive/2018/0x03-about-structure/#description","title":"Description","text":"<p>A detailed description of the control including some best practices to consider.</p>"},{"location":"archive/2018/0x03-about-structure/#implementation","title":"Implementation","text":"<p>Implementation best practices  and examples to illustrate how to implement each control.</p>"},{"location":"archive/2018/0x03-about-structure/#vulnerabilities-prevented","title":"Vulnerabilities Prevented","text":"<p>List of prevented vulnerabilities or risks addressed (OWASP TOP 10 Risk, CWE, etc.)</p>"},{"location":"archive/2018/0x03-about-structure/#references","title":"References","text":"<p>List of references for further study (OWASP Cheat sheet, Security Hardening Guidelines, etc.)</p>"},{"location":"archive/2018/0x03-about-structure/#tools","title":"Tools","text":"<p>Set of tools/projects to easily introduce/integrate security controls into your software.</p>"},{"location":"archive/2018/0x04-introduction/","title":"Introduction","text":"<p>The OWASP Top Ten Proactive Controls 2018 is a list of security techniques that should be considered for every software development project. This document is written for developers to assist those new to secure development.</p> <p>One of the main goals of this document is to provide concrete practical guidance that helps developers build secure software. These techniques should be applied proactively at the early stages of software development to ensure maximum effectiveness.</p>"},{"location":"archive/2018/0x04-introduction/#the-top-10-proactive-controls","title":"The Top 10 Proactive Controls","text":"<p>The list is ordered by importance with list item number 1 being the most important:</p> <ul> <li>OWASP-2018-C1: Define Security Requirements</li> <li>OWASP-2018-C2: Leverage Security Frameworks and Libraries</li> <li>OWASP-2018-C3: Secure Database Access</li> <li>OWASP-2018-C4: Encode and Escape Data</li> <li>OWASP-2018-C5: Validate All Inputs</li> <li>OWASP-2018-C6: Implement Digital Identity</li> <li>OWASP-2018-C7: Enforce Access Controls</li> <li>OWASP-2018-C8: Protect Data Everywhere</li> <li>OWASP-2018-C9: Implement Security Logging and Monitoring</li> <li>OWASP-2018-C10: Handle All Errors and Exceptions</li> </ul>"},{"location":"archive/2018/0x04-introduction/#how-this-list-was-created","title":"How this List Was Created","text":"<p>This list was originally created by the current project leads with contributions from several volunteers. The document was then shared globally so even anonymous suggestions could be considered. Hundreds of changes were accepted from this open community process.</p>"},{"location":"archive/2018/0x04-introduction/#target-audience","title":"Target Audience","text":"<p>This document is primarily written for developers. However, development managers, product owners, Q/A professionals, program managers, and anyone involved in building software can also benefit from this document. </p>"},{"location":"archive/2018/0x04-introduction/#how-to-use-this-document","title":"How to Use this Document","text":"<p>This document is intended to provide initial awareness around building secure software. This document will also provide a good foundation of topics to help drive introductory software security developer training. These controls should be used consistently and thoroughly throughout all applications. However, this document should be seen as a starting point rather than a comprehensive set of techniques and practices. A full secure development process should include comprehensive requirements from a standard such as the OWASP ASVS in addition to including a range of software development activities described in maturity models such as OWASP SAMM and BSIMM.</p>"},{"location":"archive/2018/0x04-introduction/#link-to-the-owasp-top-10-project","title":"Link to the OWASP Top 10 Project","text":"<p>The OWASP Top 10 Proactive Controls is similar to the OWASP Top 10 but is focused on defensive techniques and controls as opposed to risks. Each technique or control in this document will map to one or more items in the risk based OWASP Top 10. This mapping information is included at the end of each control description.</p>"},{"location":"archive/2018/c1-security-requirements/","title":"C1: Define Security Requirements","text":""},{"location":"archive/2018/c1-security-requirements/#description","title":"Description","text":"<p>A security requirement is a statement of needed security functionality that ensures one of many different security properties of software is being satisfied. Security requirements are derived from industry standards, applicable laws, and a history of past vulnerabilities. Security requirements define new features or additions to existing features to solve a specific security problem or eliminate a potential vulnerability.</p> <p>Security requirements provide a foundation of vetted security functionality for an application. Instead of creating a custom approach to security for every application, standard security requirements allow developers to reuse the definition of security controls and best practices. Those same vetted security requirements provide solutions for security issues that have occurred in the past. Requirements exist to prevent the repeat of past security failures.</p>"},{"location":"archive/2018/c1-security-requirements/#the-owasp-asvs","title":"The OWASP ASVS","text":"<p>The OWASP Application Security Verification Standard (ASVS) is a catalog of available security requirements and verification criteria. OWASP ASVS  can be a source of detailed security requirements for development teams.</p> <p>Security requirements are categorized into different buckets based on a shared higher order security function. For example, the ASVS contains categories such as authentication, access control, error handling / logging, and web services. Each category contains a collection of requirements that represent the best practices for that category drafted as verifiable statements.</p>"},{"location":"archive/2018/c1-security-requirements/#augmenting-requirements-with-user-stories-and-misuse-cases","title":"Augmenting Requirements with User Stories and Misuse Cases","text":"<p>The ASVS requirements are basic verifiable statements which can be expanded upon with user stories and misuse cases. The advantage of a user story or misuse case is that it ties the application to exactly what the user or attacker does to the system, versus describing what the system offers to the user. </p> <p>Here is an example of expanding on an ASVS 3.0.1 requirement. From the \"Authentication Verification Requirements\" section of ASVS 3.0.1, requirement 2.19 focuses on default passwords.</p> <pre><code>2.19 Verify there are no default passwords in use for the application framework \n    or any components used by the application (such as \"admin/password\").\n</code></pre> <p>This requirement contains both an action to verify that no default passwords exist, and also carries with it the guidance that no default passwords should be used within the application.</p> <p>A user story focuses on the perspective of the user, administrator, or attacker of the system, and describes functionality based on what a user wants the system to do for them. A user story takes the form of \"As a user, I can do x, y, and z\".</p> <pre><code>As a user, I can enter my username and password to gain access to the application.\nAs a user, I can enter a long password that has a maximum of 1023 characters.\n</code></pre> <p>When the story is focused on the attacker and their actions, it is referred to as a misuse case.</p> <pre><code>As an attacker, I can enter in a default username and password to gain access.\n</code></pre> <p>This story contains the same message as the traditional requirement from ASVS, with additional user or attacker details to help make the\u00a0requirement more testable.</p>"},{"location":"archive/2018/c1-security-requirements/#implementation","title":"Implementation","text":"<p>Successful use of security requirements involves four steps. The process includes discovering / selecting, documenting, implementing, and then confirming correct implementation of new security features and functionality within an application. </p>"},{"location":"archive/2018/c1-security-requirements/#discovery-and-selection","title":"Discovery and Selection","text":"<p>The process begins with discovery and selection of security requirements. In this phase, the developer is understanding security requirements from a standard source such as ASVS and choosing which requirements to include for a given release of an application. The point of discovery and selection is to choose a manageable number of security requirements for this release or sprint, and then continue to iterate for each sprint, adding more security functionality over time.</p>"},{"location":"archive/2018/c1-security-requirements/#investigation-and-documentation","title":"Investigation and Documentation","text":"<p>During investigation and documentation, the developer reviews the existing application against the new set of security requirements to determine whether the application currently meets the requirement or if some development is required. This investigation culminates in the documentation of the results of the review.</p>"},{"location":"archive/2018/c1-security-requirements/#implementation_1","title":"Implementation","text":"<p>After the need is determined for development, the developer must now modify the application in some way to add the new functionality or eliminate an insecure option. In this phase the developer first determines the design required to address the requirement, and then completes the code changes to meet the requirement.</p>"},{"location":"archive/2018/c1-security-requirements/#test","title":"Test","text":"<p>Test cases should be created to confirm the existence of the new functionality or disprove the existence of a previously insecure option.</p>"},{"location":"archive/2018/c1-security-requirements/#vulnerabilities-prevented","title":"Vulnerabilities Prevented","text":"<p>Security requirements define the security functionality of an application. Better security built in from the beginning of an applications life cycle results in the prevention of many types of vulnerabilities. </p>"},{"location":"archive/2018/c1-security-requirements/#references","title":"References","text":"<ul> <li>OWASP Application Security Verification Standard (ASVS)</li> <li>OWASP Mobile Application Security Verification Standard (MASVS)</li> <li>OWASP Top Ten</li> </ul>"},{"location":"archive/2018/c10-errors-exceptions/","title":"C10: Handle all Errors and Exceptions","text":""},{"location":"archive/2018/c10-errors-exceptions/#description","title":"Description","text":"<p>Exception handling is a programming concept that allows an application to respond to different error states (like network down, or database connection failed, etc) in various ways. Handling exceptions and errors correctly is critical to making your code reliable and secure.</p> <p>Error and exception handling occurs in all areas of an application including critical business logic as well as security features and framework code.</p> <p>Error handling is also important from an intrusion detection perspective. Certain attacks against your application may trigger errors which can help detect attacks in progress.</p>"},{"location":"archive/2018/c10-errors-exceptions/#error-handling-mistakes","title":"Error Handling Mistakes","text":"<p>Researchers at the University of Toronto have found that even small mistakes in error handling or forgetting to handle errors can lead to catastrophic failures in distributed systems.</p> <p>Mistakes in error handling can lead to different kinds of security vulnerabilities.</p> <ul> <li>Information leakage: Leaking sensitive information in error messages can unintentionally help attackers. For example, an error that returns a stack trace or other internal error details can provide an attacker with information about your environment. Even small differences in handling different error conditions (e.g., returning \"invalid user\" or \"invalid password\" on authentication errors) can provide valuable clues to attackers. As described above, be sure to log error details for forensics and debugging purposes, but don\u2019t expose this information, especially to an external client.</li> <li>TLS bypass:  The Apple goto \"fail bug\" was a control-flow error in error handling code that lead to a complete compromise of TLS connections on apple systems.</li> <li>DOS: A lack of basic error handling can lead to system shutdown. This is usually a fairly easy vulnerability for attackers to exploit. Other error handling problems could lead to increased usage of CPU or disk in ways that could degrade the system.</li> </ul>"},{"location":"archive/2018/c10-errors-exceptions/#positive-advice","title":"Positive Advice","text":"<ul> <li>Manage exceptions in a centralized manner to avoid duplicated try/catch blocks in the code. Ensure that all unexpected behavior is correctly handled inside the application.</li> <li>Ensure that error messages displayed to users do not leak critical data, but are still verbose enough to enable the proper user response.</li> <li>Ensure that exceptions are logged in a way that gives enough information for support, QA, forensics or incident response teams to understand the problem.</li> <li>Carefully test and verify error handling code.</li> </ul>"},{"location":"archive/2018/c10-errors-exceptions/#references","title":"References","text":"<ul> <li>OWASP Code Review Guide: Error Handling</li> <li>OWASP Testing Guide: Testing for Error Handling</li> <li>OWASP Improper Error Handling</li> <li>CWE 209: Information Exposure Through an Error Message</li> <li>CWE 391: Unchecked Error Condition</li> </ul>"},{"location":"archive/2018/c10-errors-exceptions/#tools","title":"Tools","text":"<ul> <li>Error Prone  - A static analysis tool from Google to catch common mistakes in error handling for Java developers</li> <li>One of the most famous automated tools for finding errors at runtime is Netflix's Chaos Monkey, which intentionally disables system instances to ensure that the overall service will recover correctly.</li> </ul>"},{"location":"archive/2018/c2-leverage-security-frameworks-libraries/","title":"C2: Leverage Security Frameworks and Libraries","text":""},{"location":"archive/2018/c2-leverage-security-frameworks-libraries/#description","title":"Description","text":"<p>Secure coding libraries and software frameworks with embedded security help software developers guard against security-related design and implementation flaws. A developer writing an application from scratch might not have sufficient knowledge, time, or budget to properly implement or maintain security features. Leveraging security frameworks helps accomplish security goals more efficiently and accurately.</p>"},{"location":"archive/2018/c2-leverage-security-frameworks-libraries/#implementation-best-practices","title":"Implementation Best Practices","text":"<p>When incorporating third party libraries or frameworks into your software, it is important to consider the following best practices:</p> <ol> <li>Use libraries and frameworks from trusted sources that are actively maintained and widely used by many applications.</li> <li>Create and maintain an inventory catalog of all the third party libraries.</li> <li>Proactively keep libraries and components up to date. Use a tool like OWASP Dependency Check and Retire.JS to identify project dependencies and check if there are any known, publicly disclosed vulnerabilities for all third party code.</li> <li>Reduce the attack surface by encapsulating the library and expose only the required behaviour into your software.</li> </ol>"},{"location":"archive/2018/c2-leverage-security-frameworks-libraries/#vulnerabilities-prevented","title":"Vulnerabilities Prevented","text":"<p>Secure frameworks and libraries can help to prevent a wide range of web application vulnerabilities. It is critical to keep these frameworks and libraries up to date as described in the [using components with known vulnerabilities Top Ten 2017 risks.</p>"},{"location":"archive/2018/c2-leverage-security-frameworks-libraries/#tools","title":"Tools","text":"<ul> <li>OWASP Dependency Check - identifies project dependencies and checks for publicly disclosed vulnerabilities</li> <li>Retire.JS scanner for JavaScript libraries</li> </ul>"},{"location":"archive/2018/c3-secure-database/","title":"C3: Secure Database Access","text":""},{"location":"archive/2018/c3-secure-database/#description","title":"Description","text":"<p>This section describes secure access to all data stores, including both relational databases and NoSQL databases. Some areas to consider:</p> <ol> <li>Secure queries</li> <li>Secure configuration</li> <li>Secure authentication</li> <li>Secure communication</li> </ol>"},{"location":"archive/2018/c3-secure-database/#secure-queries","title":"Secure Queries","text":"<p>SQL Injection occurs when untrusted user input is dynamically added to a SQL query in an insecure manner, often via basic string concatenation. SQL Injection is one of the most dangerous application security risks. SQL Injection is easy to exploit and could lead to the entire database being stolen, wiped, or modified. The application can even be used to run dangerous commands against the operating system hosting your database, thereby giving an attacker a foothold on your network.</p> <p>In order to mitigate SQL injection, untrusted input should be prevented from being interpreted as part of a SQL command. The best way to do this is with the programming technique known as 'Query Parameterization'. This defense should be applied to SQL, OQL, as well as stored procedure construction.</p> <p>A good list of query parameterization examples in ASP, ColdFusion, C#, Delphi, .NET, Go, Java, Perl, PHP, PL/SQL, PostgreSQL, Python, R, Ruby and Scheme can be found at http://bobby-tables.com and the OWASP Cheat Sheet on Query Parameterization.</p> <p>Caution on Query Parameterization</p> <p>Certain locations in a database query are not parameterizable. These locations are different for each database vendor. Be certain to do very careful exact-match validation or manual escaping when confronting database query parameters that cannot be bound to a parameterized query. Also, while the use of parameterized queries largely has a positive impact on performance, certain parameterized queries in specific database implementations will affect performance negatively. Be sure to test queries for performance; especially complex queries with extensive like clause or text searching capabilities.</p>"},{"location":"archive/2018/c3-secure-database/#secure-configuration","title":"Secure Configuration","text":"<p>Unfortunately, database management systems do not always ship in a \"secure by default\" configuration. Care must be taken to ensure that the security controls available from the Database Management System (DBMS) and hosting platform are enabled and properly configured. There are standards, guides, and benchmarks available for most common DBMS. </p> <p>A quick guidance on providing a secure configuration can be found in the Database Cheat Sheet.</p>"},{"location":"archive/2018/c3-secure-database/#secure-authentication","title":"Secure Authentication","text":"<p>All access to the database should be properly authenticated. Authentication to the DBMS should be accomplished in a secure manner. Authentication should take place only over a secure channel. Credentials must be properly secured and available for use.</p> <p>A quick guidance on providing a secure authentication process can be found in the Database Cheat Sheet.</p>"},{"location":"archive/2018/c3-secure-database/#secure-communication","title":"Secure Communication","text":"<p>Most DBMS support a variety of communications methods (services, APIs, etc) - secure (authenticated, encrypted) and insecure (unauthenticated or unencrypted). It is a good practice to only use the secure communications options per the Protect Data Everywhere control.</p> <p>A quick guidance on providing a secure communication mean can be found in the Database Cheat Sheet.</p>"},{"location":"archive/2018/c3-secure-database/#vulnerabilities-prevented","title":"Vulnerabilities Prevented","text":"<ul> <li>OWASP Top 10 2021-A3: Injection</li> <li>OWASP Mobile Top 10 2014-M1 Weak Server Side Controls</li> </ul>"},{"location":"archive/2018/c3-secure-database/#references","title":"References","text":"<ul> <li>OWASP Cheat Sheet: Query Parameterization</li> <li>OWASP Cheat Sheet: Database Security</li> <li>Bobby Tables: A guide to preventing SQL injection</li> <li>CIS Database Hardening Standards</li> </ul>"},{"location":"archive/2018/c4-encode-escape-data/","title":"C4: Encode and Escape Data","text":""},{"location":"archive/2018/c4-encode-escape-data/#description","title":"Description","text":"<p>Encoding and escaping are defensive techniques meant to stop injection attacks. Encoding (commonly called \"Output Encoding\") involves translating special characters into some different but equivalent form that is no longer dangerous in the target interpreter, for example translating the <code>&lt;</code> character into the <code>&amp;lt;</code> string when writing to an HTML page. Escaping involves adding a special character before the character/string to avoid it being misinterpreted, for example, adding a <code>\\</code> character before a <code>\"</code> (double quote) character so that it is interpreted as text and not as closing a string.</p> <p>Output encoding is best applied just before the content is passed to the target interpreter. If this defense is performed too early in the processing of a request then the encoding or escaping may interfere with the use of the content in other parts of the program. For example if you HTML escape content before storing that data in the database and the UI automatically escapes that data a second time then the content will not display properly due to being double escaped.</p>"},{"location":"archive/2018/c4-encode-escape-data/#contextual-output-encoding","title":"Contextual Output Encoding","text":"<p>Contextual output encoding is a crucial security programming technique needed to stop XSS. This defense is performed on output, when you're building a user interface, at the last moment before untrusted data is dynamically added to HTML. The type of encoding will depend on the location (or context) in the document where data is being displayed or stored. The different types of encoding that would be used for building secure user interfaces includes HTML Entity Encoding, HTML Attribute Encoding, JavaScript Encoding, and URL Encoding.</p>"},{"location":"archive/2018/c4-encode-escape-data/#java-encoding-examples","title":"Java Encoding Examples","text":"<p>For examples of the OWASP Java Encoder providing contextual output encoding see: OWASP Java Encoder Project Examples.</p>"},{"location":"archive/2018/c4-encode-escape-data/#net-encoding-examples","title":".NET Encoding Examples","text":"<p>Starting with .NET 4.5 , the Anti-Cross Site Scripting library is part of the framework, but not enabled by default. You can specify to use AntiXssEncoder from this library as the default encoder for your entire application using the web.conf settings. When applied is important to contextual encode your output - that means to use the right function from the AntiXSSEncoder library for the appropriate location of data in document.</p>"},{"location":"archive/2018/c4-encode-escape-data/#php-encoding-examples","title":"PHP Encoding Examples","text":"<p>Zend Framework 2</p> <p>In Zend Framework 2 (ZF2), <code>Zend\\Escaper</code> can be used for encoding the output. For contextual encoding examples see Context-specific escaping with zend-escaper.</p>"},{"location":"archive/2018/c4-encode-escape-data/#other-types-of-encoding-and-injection-defense","title":"Other Types of Encoding and Injection Defense","text":"<p>Encoding/Escaping can be used to neutralize content against other forms of injection. For example, it's possible to neutralize certain special meta-characters when adding input to an operating system command. This is called \"OS command escaping\", \"shell escaping\", or similar. This defense can be used to stop \"Command Injection\" vulnerabilities.</p> <p>There are other forms of escaping that can be used to stop injection such as XML attribute escaping stopping various forms of XML and XML path injection, as well as LDAP distinguished name escaping that can be used to stop various forms of LDAP injection.</p>"},{"location":"archive/2018/c4-encode-escape-data/#character-encoding-and-canonicalization","title":"Character Encoding and Canonicalization","text":"<p>Unicode Encoding is a method for storing characters with multiple bytes. Wherever input data is allowed, data can be entered using Unicode to disguise malicious code and permit a variety of attacks. RFC 2279 references many ways that text can be encoded.</p> <p>Canonicalization is a method in which systems convert data into a simple or standard form.  Web applications commonly use character canonicalization to ensure all content is of the same character type when stored or displayed.</p> <p>To be secure against canonicalization related attacks means an application should be safe when malformed Unicode and other malformed character representations are entered.</p>"},{"location":"archive/2018/c4-encode-escape-data/#vulnerabilities-prevented","title":"Vulnerabilities Prevented","text":"<ul> <li>OWASP Top 10 2017 - A1: Injection</li> <li>OWASP Top 10 2017 - A7: Cross Site Scripting (XSS)</li> <li>OWASP Mobile_Top_10_2014-M7 Client Side Injection</li> </ul>"},{"location":"archive/2018/c4-encode-escape-data/#references","title":"References","text":"<ul> <li>XSS - General information</li> <li>OWASP Cheat Sheet: XSS Prevention - Stopping XSS in your web application</li> <li>OWASP Cheat Sheet: DOM based XSS Prevention</li> <li>OWASP Cheat Sheet: Injection Prevention</li> </ul>"},{"location":"archive/2018/c4-encode-escape-data/#tools","title":"Tools","text":"<ul> <li>OWASP Java Encoder Project</li> <li>AntiXSSEncoder</li> <li>Zend\\Escaper - examples of contextual encoding</li> </ul>"},{"location":"archive/2018/c5-validate-inputs/","title":"C5: Validate All Inputs","text":""},{"location":"archive/2018/c5-validate-inputs/#description","title":"Description","text":"<p>Input validation is a programming technique that ensures only properly formatted data may enter a software system component.</p>"},{"location":"archive/2018/c5-validate-inputs/#syntax-and-semantic-validity","title":"Syntax and Semantic Validity","text":"<p>An application should check that data is both syntactically and semantically valid (in that order) before using it in any way (including displaying it back to the user).</p> <p>Syntax validity means that the data is in the form that is expected. For example, an application may allow a user to select a four-digit \"account ID\" to perform some kind of operation. The application should assume the user is entering a SQL injection payload, and should check that the data entered by the user is exactly four digits in length, and consists only of numbers (in addition to utilizing proper query parameterization).</p> <p>Semantic validity includes only accepting input that is within an acceptable range for the given application functionality and context. For example, a start date must be before an end date when choosing date ranges.</p>"},{"location":"archive/2018/c5-validate-inputs/#allowlisting-vs-denylisting","title":"Allowlisting vs Denylisting","text":"<p>There are two general approaches to performing input syntax validation, commonly known as allow and deny lists:</p> <ul> <li>Denylisting or denylist validation* attempts to check that given data does not contain \"known bad\" content. For example, a web application may block input that contains the exact text <code>&lt;SCRIPT&gt;</code> in order to help prevent XSS. However, this defense could be evaded with a lower case script tag or a script tag of mixed case.</li> <li>Allowlisting or allowlist validation attempts to check that a given data matches a set of \"known good\" rules. For example a allowlist validation rule for a US state would be a 2-letter code that is only one of the valid US states.</li> </ul> <p>Important When building secure software, allowlisting is the recommended minimal approach. Denylisting is prone to error and can be bypassed with various evasion techniques and can be dangerous when depended on by itself. Even though denylisting can often be evaded, it can often be useful to help detect obvious attacks. So while allowlisting helps limit the attack surface by ensuring data is of the right syntactic and semantic validity, denylisting helps detect and potentially stop obvious attacks.</p>"},{"location":"archive/2018/c5-validate-inputs/#client-side-and-server-side-validation","title":"Client side and Server side Validation","text":"<p>Input validation must always be done on the server-side for security. While client side validation can be useful for both functional and some security purposes, it can often be easily bypassed. This makes server-side validation even more fundamental to security. For example, JavaScript validation may alert the user that a particular field must consist of numbers but the server side application must validate that the submitted data only consists of numbers in the appropriate numerical range for that feature.</p>"},{"location":"archive/2018/c5-validate-inputs/#regular-expressions","title":"Regular Expressions","text":"<p>Regular expressions offer a way to check whether data matches a specific pattern. Let\u2019s start with a basic example.</p> <p>The following regular expression is used to define a allowlist rule to validate usernames.</p> <pre><code>^[a-z0-9_]{3,16}$\n</code></pre> <p>This regular expression allows only lowercase letters, numbers and the underscore character. The username is also restricted to a length of 3 and 16 characters.</p> <p>Caution: Potential for Denial of Service</p> <p>Care should be exercised when creating regular expressions. Poorly designed expressions may result in potential denial of service conditions (aka ReDoS ). Various tools can test to verify that regular expressions are not vulnerable to ReDoS.</p> <p>Caution: Complexity</p> <p>Regular expressions are just one way to accomplish validation. Regular expressions can be difficult to maintain or understand for some developers. Other validation alternatives involve writing validation methods programmatically which can be easier to maintain for some developers.</p>"},{"location":"archive/2018/c5-validate-inputs/#limits-of-input-validation","title":"Limits of Input Validation","text":"<p>Input validation does not always make data \"safe\" since certain forms of complex input may be \"valid\" but still dangerous. For example, a valid email address may contain a SQL injection attack or a valid URL may contain a Cross Site Scripting attack. Additional defenses besides input validation should always be applied to data such as query parameterization or escaping.</p>"},{"location":"archive/2018/c5-validate-inputs/#challenges-of-validating-serialized-data","title":"Challenges of Validating Serialized Data","text":"<p>Some forms of input are so complex that validation can only minimally protect the application. For example, it's dangerous to deserialize untrusted data or data that can be manipulated by an attacker. The only safe architectural pattern is to not accept serialized objects from untrusted sources or to only deserialize in limited capacity for only simple data types. You should avoid processing serialized data formats and use easier to defend formats such as JSON when possible.</p> <p>If that is not possible then consider a series of validation defenses when processing serialized data. * Implement integrity checks or encryption of the serialized objects to prevent hostile object creation or data tampering. * Enforce strict type constraints during deserialization before object creation; typically code is expecting a definable set of classes. Bypasses to this technique have been demonstrated. * Isolate code that deserializes, such that it runs in very low privilege environments, such as temporary containers. * Log security deserialization exceptions and failures, such as where the incoming type is not the expected type, or the deserialization throws exceptions. * Restrict or monitor incoming and outgoing network connectivity from containers or servers that deserialize. * Monitor deserialization, alerting if a user deserializes constantly.</p>"},{"location":"archive/2018/c5-validate-inputs/#unexpected-user-input-mass-assignment","title":"Unexpected User Input (Mass Assignment)","text":"<p>Some frameworks support automatic binding of HTTP requests parameters to server-side objects used by the application. This auto-binding feature can allow an attacker to update server-side objects that were not meant to be modified. The attacker can possibly modify their access control level or circumvent the intended business logic of the application with this feature.</p> <p>This attack has a number of names including: mass assignment, autobinding and object injection.</p> <p>As a simple example, if the user object has a field named <code>privilege</code> which specifies the user's privilege level in the application, a malicious user can look for pages where user data is modified and add <code>privilege=admin</code> to the HTTP parameters sent.  If auto-binding is enabled in an insecure fashion, the server-side object representing the user will be modified accordingly.</p> <p>Two approaches can be used to handle this: * Avoid binding input directly and use Data Transfer Objects (DTOs) instead. * Enable auto-binding but set up allowlist rules for each page or feature to define which fields are allowed to be auto-bound.</p> <p>More examples are available in the OWASP Mass Assignment Cheat Sheet.</p>"},{"location":"archive/2018/c5-validate-inputs/#validating-and-sanitizing-html","title":"Validating and Sanitizing HTML","text":"<p>Consider an application that needs to accept HTML from users (via a WYSIWYG editor that represents content as HTML or features that directly accept HTML in input). In this situation validation or escaping will not help.</p> <ul> <li>Regular expressions are not expressive enough to understand the complexity of HTML5.</li> <li>Encoding or escaping HTML will not help since it will cause the HTML to not render properly.</li> </ul> <p>Therefore, you need a library that can parse and clean HTML formatted text. Please see the XSS Prevention Cheat Sheet on HTML Sanitization for more information on HTML Sanitization.</p>"},{"location":"archive/2018/c5-validate-inputs/#validation-functionality-in-libraries-and-frameworks","title":"Validation Functionality in Libraries and Frameworks","text":"<p>All languages and most frameworks provide validation libraries or functions which should be leveraged to validate data. Validation libraries typically cover common data types, length requirements, integer ranges, \"is null\" checks and more. Many validation libraries and frameworks allow you to define your own regular expression or logic for custom validation in a way that allows the programmer to leverage that functionality throughout your application. Examples of validation functionality include PHP\u2019s filter functions or the Hibernate Validator for Java. Examples of HTML Sanitizers include Ruby on Rails sanitize method, OWASP Java HTML Sanitizer or DOMPurify.</p>"},{"location":"archive/2018/c5-validate-inputs/#vulnerabilities-prevented","title":"Vulnerabilities Prevented","text":"<ul> <li>Input validation reduces the attack surface of applications and can sometimes make attacks more difficult against an application.</li> <li>Input validation is a technique that provides security to certain forms of data, specific to certain attacks and cannot be reliably applied as a general security rule.</li> <li>Input validation should not be used as the primary method of preventing XSS, SQL Injection and other attacks.</li> </ul>"},{"location":"archive/2018/c5-validate-inputs/#references","title":"References","text":"<ul> <li>OWASP Cheat Sheet: Input Validation</li> <li>OWASP Cheat Sheet: iOS - Security Decisions via Untrusted Inputs</li> <li>OWASP Testing Guide: Testing for Input Validation</li> </ul>"},{"location":"archive/2018/c5-validate-inputs/#tools","title":"Tools","text":"<ul> <li>OWASP Java HTML Sanitizer Project</li> <li>Java JSR-303/JSR-349 Bean Validation</li> <li>Java Hibernate Validator</li> <li>JEP-290 Filter Incoming Serialization Data</li> <li>Apache Commons Validator</li> <li>PHP\u2019s filter functions</li> </ul>"},{"location":"archive/2018/c6-digital-identity/","title":"C6: Implement Digital Identity","text":""},{"location":"archive/2018/c6-digital-identity/#description","title":"Description","text":"<p>Digital Identity is the unique representation of a user (or other subject) as they engage in an online transaction. Authentication is the process of verifying that an individual or entity is who they claim to be. Session management is a process by which a server maintains the state of the users authentication so that the user may continue to use the system without re-authenticating. The NIST Special Publication 800-63B: Digital Identity Guidelines (Authentication and Lifecycle Management) provides solid guidance on implementing digital identity, authentication and session management controls.</p> <p>Below are some recommendations for secure implementation.</p>"},{"location":"archive/2018/c6-digital-identity/#authentication-levels","title":"Authentication Levels","text":"<p>NIST 800-63b describes three levels of a authentication assurance called a authentication assurance level (AAL). AAL level 1 is reserved for lower-risk applications that do not contain PII or other private data. At AAL level 1 only single-factor authentication is required, typically through the use of a password.</p>"},{"location":"archive/2018/c6-digital-identity/#level-1-passwords","title":"Level 1 : Passwords","text":"<p>Passwords are really really important. We need policy, we need to store them securely, we need to sometimes allow users to reset them.</p>"},{"location":"archive/2018/c6-digital-identity/#password-requirements","title":"Password Requirements","text":"<p>Passwords should comply with the following requirements at the very least:</p> <ul> <li>be at least 8 characters in length if multi-factor authentication (MFA) and other controls are also used. If MFA is not possible, this should be increased to at least 10 characters</li> <li>all printing ASCII characters as well as the space character should be acceptable in memorized secrets</li> <li>encourage the use of long passwords and passphrases</li> <li>remove complexity requirements as these have been found to be of limited effectiveness. Instead, the adoption of MFA or longer password lengths is recommended</li> <li>ensure that passwords used are not commonly used passwords that have been already been leaked in a previous compromise.  You may choose to block the top 1000 or 10000 most common passwords which meet the above length requirements and are found in compromised password lists. The following link contains the most commonly found passwords: https://github.com/danielmiessler/SecLists/tree/master/Passwords.</li> </ul>"},{"location":"archive/2018/c6-digital-identity/#implement-secure-password-recovery-mechanism","title":"Implement Secure Password Recovery Mechanism","text":"<p>It is common for an application to have a mechanism for a user to gain access to their account in the event they forget their password. A good design workflow for a password recovery feature will use multi-factor authentication elements. For example, it may ask a security question - something they know, and then send a generated token to a device - something they own.</p> <p>Please see the Forgot Password Cheat Sheet and Choosing and Using Security Questions Cheat Sheet for further details.</p>"},{"location":"archive/2018/c6-digital-identity/#implement-secure-password-storage","title":"Implement Secure Password Storage","text":"<p>In order to provide strong authentication controls, an application must securely store user credentials. Furthermore, cryptographic controls should be in place such that if a credential (e.g., a password) is compromised, the attacker does not immediately have access to this information.</p> <p>PHP Example for Password Storage</p> <p>Below is an example for secure password hashing in PHP using <code>password_hash()</code> function (available since 5.5.0) which defaults to using the bcrypt algorithm. The example uses a work factor of 15.</p> <pre><code>&lt;?php\n $cost = 15;\n $password_hash = password_hash(\"secret_password\", PASSWORD_DEFAULT,[\"cost\" =&gt; $cost]);\n?&gt;\n</code></pre> <p>Please see the OWASP Password Storage Cheat Sheet for further details.</p>"},{"location":"archive/2018/c6-digital-identity/#level-2-multi-factor-authentication","title":"Level 2 : Multi-Factor Authentication","text":"<p>NIST 800-63b AAL level 2 is reserved for higher-risk applications that contain \"self-asserted PII or other personal information made available online.\" At AAL level 2 multi-factor authentication is required including OTP or other forms of multi-factor implementation.</p> <p>Multi-factor authentication (MFA) ensures that users are who they claim to be by requiring them to identify themselves with a combination of: * Something you know \u2013 password or PIN * Something you own \u2013 token or phone * Something you are \u2013 biometrics, such as a fingerprint</p> <p>Using passwords as a sole factor provides weak security. Multi-factor solutions provide a more robust solution by requiring an attacker to acquire more than one element to authenticate with the service.</p> <p>It is worth noting that biometrics, when employed as a single factor of authentication, are not considered acceptable secrets for digital authentication. They can be obtained online or by taking a picture of someone with a camera phone (e.g., facial images) with or without their knowledge, lifted from objects someone touches (e.g., latent fingerprints), or captured with high resolution images (e.g., iris patterns). Biometrics must be used only as part of multi-factor authentication with a physical authenticator (something you own). For example, accessing a multi-factor one-time password (OTP) device that will generate a one-time password that the user manually enters for the verifier.</p>"},{"location":"archive/2018/c6-digital-identity/#level-3-cryptographic-based-authentication","title":"Level 3 : Cryptographic Based Authentication","text":"<p>NIST 800-63b Authentication Assurance Level 3 (AAL3) is required when the impact of compromised systems could lead to personal harm, significant financial loss, harm the public interest or involve civil or criminal violations. AAL3 requires authentication that is \"based on proof of possession of a key through a cryptographic protocol.\" This type of authentication is used to achieve the strongest level of authentication assurance. This is typically done though hardware cryptographic modules.</p>"},{"location":"archive/2018/c6-digital-identity/#session-management","title":"Session Management","text":"<p>Once the initial successful user authentication has taken place, an application may choose to track and maintain this authentication state for a limited amount of time. This will allow the user to continue using the application without having to keep re-authentication with each request. Tracking of this user state is called Session Management.</p>"},{"location":"archive/2018/c6-digital-identity/#session-generation-and-expiration","title":"Session Generation and Expiration","text":"<p>User state is tracked in a session. This session is typically stored on the server for traditional web based session management. A session identifier is then given to the user so the user can identify which server-side session contains the correct user data. The client only needs to maintain this session identifier, which also keeps sensitive server-side session data off of the client.</p> <p>Here are a few controls to consider when building or implementing session management solutions:</p> <ul> <li>Ensure that the session id is long, unique and random.</li> <li>The application should generate a new session or at least rotate the session id during authentication and re-authentication.</li> <li>The application should implement an idle timeout after a period of inactivity and an absolute maximum lifetime for each session, after which users must re-authenticate. The length of the timeouts should be inversely proportional with the value of the data protected.</li> </ul> <p>Please see the Session Management Cheat Sheet further details. ASVS Section 3 covers additional session management requirements.</p>"},{"location":"archive/2018/c6-digital-identity/#browser-cookies","title":"Browser Cookies","text":"<p>Browser cookies are a common method for web application to store session identifiers for web applications implementing standard session management techniques. Here are some defenses to consider when using browser cookies.</p> <ul> <li>When browser cookies are used as the mechanism for tracking the session of an authenticated user,  these should be accessible to a minimum set of domains and paths and should be tagged to expire at, or soon after, the session's validity period.</li> <li>The 'secure' flag should be set to ensure the transfer is done via secure channel only (TLS).</li> <li>HttpOnly flag should be set to prevent the cookie from  being accessed via JavaScript.</li> <li>Adding \"SameSite\" attributes to cookies prevents some modern browsers from sending cookies with cross-site requests and provides protection against cross-site request forgery and information leakage attacks.</li> </ul>"},{"location":"archive/2018/c6-digital-identity/#tokens","title":"Tokens","text":"<p>Server-side sessions can be limiting for some forms of authentication. \"Stateless services\" allow for client side management of session data for performance purposes so they server has less of a burden to store and verify user session. These \"stateless\" applications generate a short-lived access token which can be used to authenticate a client request without sending the user's credentials after the initial authentication.</p>"},{"location":"archive/2018/c6-digital-identity/#jwt-json-web-tokens","title":"JWT (JSON Web Tokens)","text":"<p>JSON Web Token (JWT) is an open standard (RFC 7519) that defines a compact and self-contained way for securely transmitting information between parties as a JSON object. This information can be verified and trusted because it is digitally signed. A JWT token is created during authentication and is verified by the server (or servers) before any processing.</p> <p>However, JWT's are often not saved by the server after initial creation. JWT's are typically created and then handed to a client without being saved by the server in any way. The integrity of the token is maintained through the use of digital signatures so a server can later verify that the JWT is still valid and was not tampered with since its creation.</p> <p>This approach is both stateless and portable in the way that client and server technologies can be different yet still interact.</p> <p>Caution</p> <p>Digital identity, authentication and session management are very big topics. We're scratching the surface of the topic of Digital Identity here. Ensure that your most capable engineering talent is responsible for maintaining the complexity involved with most Identity solutions.</p>"},{"location":"archive/2018/c6-digital-identity/#vulnerabilities-prevented","title":"Vulnerabilities Prevented","text":"<ul> <li>OWASP Top 10 2017 A2- Broken Authentication and Session Management</li> <li>OWASP Mobile Top 10 2014-M5- Poor Authorization and Authentication</li> </ul>"},{"location":"archive/2018/c6-digital-identity/#references","title":"References","text":"<ul> <li>OWASP Cheat Sheet: Authentication</li> <li>OWASP Cheat Sheet: Password Storage</li> <li>OWASP Cheat Sheet: Forgot Password</li> <li>OWASP Cheat Sheet: Choosing and Using Security Questions</li> <li>OWASP Cheat Sheet: Session Management</li> <li>OWASP Cheat Sheet: IOS Developer</li> <li>OWASP Testing Guide: Testing for Authentication</li> <li>NIST Special Publication 800-63 Revision 3 - Digital Identity Guidelines</li> </ul>"},{"location":"archive/2018/c6-digital-identity/#tools","title":"Tools","text":"<ul> <li>Daniel Miessler: Most commonly found passwords</li> </ul>"},{"location":"archive/2018/c7-enforce-access-controls/","title":"C7: Enforce Access Controls","text":""},{"location":"archive/2018/c7-enforce-access-controls/#description","title":"Description","text":"<p>Access Control (or Authorization) is the process of granting or denying specific requests from a user, program, or process. Access control also involves the act of granting and revoking those privileges.</p> <p>It should be noted that authorization (verifying access to specific features or resources) is not equivalent to authentication (verifying identity).</p> <p>Access Control functionality often spans many areas of software depending on the complexity of the access control system. For example, managing access control metadata or building caching for scalability purposes are often additional components in an access control system that need to be built or managed. There are several different types of access control design that should be considered.</p> <ul> <li>Discretionary Access Control (DAC) is a means of restricting access to objects (e.g., files, data entities) based on the identity and need-to-know of subjects (e.g., users, processes) and/or groups to which the object belongs.</li> <li>Mandatory Access Control (MAC) is a means of restricting access to system resources based on the sensitivity (as represented by a label) of the information contained in the system resource and the formal authorization (i.e., clearance) of users to access information of such sensitivity.</li> <li>Role Based Access Control (RBAC) is a model for controlling access to resources where permitted actions on resources are identified with roles rather than with individual subject identities.</li> <li>Attribute Based Access Control (ABAC) will grant or deny user requests based on arbitrary attributes of the user and arbitrary attributes of the object, and environment conditions that may be globally recognized and more relevant to the policies at hand.</li> </ul>"},{"location":"archive/2018/c7-enforce-access-controls/#access-control-design-principles","title":"Access Control Design Principles","text":"<p>The following \"positive\" access control design requirements should be considered at the initial stages of application development. </p>"},{"location":"archive/2018/c7-enforce-access-controls/#1-design-access-control-thoroughly-up-front","title":"1) Design Access Control Thoroughly Up Front","text":"<p>Once you have chosen a specific access control design pattern, it is often difficult and time consuming to re-engineer access control in your application with a new pattern. Access Control is one of the main areas of application security design that must be thoroughly designed up front, especially when addressing requirements like multi-tenancy and horizontal (data dependent) access control.</p> <p>Access Control design may start simple but can often grow into a complex and feature-heavy security control. When evaluating access control capability of software frameworks, ensure that your access control functionality will allow for customization for your specific access control feature need.</p>"},{"location":"archive/2018/c7-enforce-access-controls/#2-force-all-requests-to-go-through-access-control-checks","title":"2) Force All Requests to Go Through Access Control Checks","text":"<p>Ensure that all request go through some kind of access control verification layer. Technologies like Java filters or other automatic request processing mechanisms are ideal programming artifacts that will help ensure that all requests go through some kind of access control check.</p>"},{"location":"archive/2018/c7-enforce-access-controls/#3-deny-by-default","title":"3) Deny by Default","text":"<p>Deny by default is the principle that if a request is not specifically allowed, it is denied. There are many ways that this rule will manifest in application code. Some examples of these are:</p> <ol> <li>Application code may throw an error or exception while processing access control requests. In these cases access control should always be denied.</li> <li>When an administrator creates a new user or a user registers for a new account, that account should have minimal or no access by default until that access is configured.</li> <li>When a new feature is added to an application all users should be denied to use that feature until it's properly configured.</li> </ol>"},{"location":"archive/2018/c7-enforce-access-controls/#4-principle-of-least-privilege","title":"4) Principle of Least Privilege","text":"<p>Ensure that all users, programs, or processes are only given as least or as little necessary access as possible. Be wary of systems that do not provide granular access control configuration capabilities.</p>"},{"location":"archive/2018/c7-enforce-access-controls/#5-dont-hardcode-roles","title":"5) Don't Hardcode Roles","text":"<p>Many application frameworks default to access control that is role based. It is common to find application code that is filled with checks of this nature. <pre><code>    if (user.hasRole(\"ADMIN\")) || (user.hasRole(\"MANAGER\")) {\n        deleteAccount();\n    }\n</code></pre> Be careful about this type of role-based programming in code. It has the following limitations or dangers. * Role based programming of this nature is fragile. It is easy to create incorrect or missing role checks in code. * Role based programming does not allow for multi-tenancy. Extreme measures like forking the code or added checks for each customer will be required to allow role based systems to have different rules for different customers. * Role based programming does not allow for data-specific or horizontal access control rules. * Large codebases with many access control checks can be difficult to audit or verify the overall application access control policy.</p> <p>Instead, please consider the following access control programming methodology:</p> <pre><code>    if (user.hasAccess(\"DELETE_ACCOUNT\")) {\n        deleteAccount();\n    }\n</code></pre> <p>Attribute or feature-based access control checks of this nature are the starting point to building well-designed and feature-rich access control systems. This type of programming also allows for greater access control customization capability over time.</p>"},{"location":"archive/2018/c7-enforce-access-controls/#6-log-all-access-control-events","title":"6) Log All Access Control Events","text":"<p>All access control failures should be logged as these may be indicative of a malicious user probing the application for vulnerabilities.</p>"},{"location":"archive/2018/c7-enforce-access-controls/#vulnerabilities-prevented","title":"Vulnerabilities Prevented","text":"<ul> <li>OWASP Top 10 2017-A5-Broken Access Control</li> <li>OWASP Mobile Top 10 2014-M5 Poor Authorization and Authentication</li> </ul>"},{"location":"archive/2018/c7-enforce-access-controls/#references","title":"References","text":"<ul> <li>OWASP Cheat Sheet: Access Control</li> <li>OWASP Cheat Sheet:  iOS Developer - Poor Authorization and Authentication</li> <li>OWASP Testing Guide: Testing for Authorization</li> </ul>"},{"location":"archive/2018/c7-enforce-access-controls/#tools","title":"Tools","text":"<ul> <li>OWASP ZAP with the optional Access Control Testing add-on</li> </ul>"},{"location":"archive/2018/c8-protect-data-everywhere/","title":"C8: Protect Data Everywhere","text":""},{"location":"archive/2018/c8-protect-data-everywhere/#description","title":"Description","text":"<p>Sensitive data such as passwords, credit card numbers, health records, personal information and business secrets require extra protection, particularly if that data falls under privacy laws (EU's General Data Protection Regulation GDPR), financial data protection rules such as PCI Data Security Standard (PCI DSS) or other regulations.</p> <p>Attackers can steal data from web and webservice applications in a number of ways. For example, if sensitive information in sent over the internet  without communications security, then an attacker on a shared wireless connection could see and steal another user's data. Also, an attacker could use SQL Injection to steal passwords and other credentials from an applications database and expose that information to the public.</p>"},{"location":"archive/2018/c8-protect-data-everywhere/#data-classification","title":"Data Classification","text":"<p>It's critical to classify data in your system and determine which level of sensitivity each piece of data belongs to. Each data category can then be mapped to protection rules necessary for each level of sensitivity. For example, public marketing information that is not sensitive may be categorized as public data which is ok to place on the public website. Credit card numbers may be classified as private user data which may need to be encrypted while stored or in transit.</p>"},{"location":"archive/2018/c8-protect-data-everywhere/#encrypting-data-in-transit","title":"Encrypting Data in Transit","text":"<p>When transmitting sensitive data over any network, end-to-end communications security (or encryption-in-transit) of some kind should be considered. TLS is by far the most common and widely supported cryptographic protocol for communications security. It is used by many types of applications (web, webservice, mobile) to communicate over a network in a secure fashion. TLS must be properly configured in a variety of ways in order to properly defend secure communications.</p> <p>The primary benefit of transport layer security is the protection of web application data from unauthorized disclosure and modification when it is transmitted between clients (web browsers) and the web application server, and between the web application server and back end and other non-browser based enterprise components.</p>"},{"location":"archive/2018/c8-protect-data-everywhere/#encrypting-data-at-rest","title":"Encrypting Data at Rest","text":"<p>The first rule of sensitive data management is to avoid storing sensitive data when at all possible. If you must store sensitive data then make sure it's cryptographically protected in some way to avoid unauthorized disclosure and modification.</p> <p>Cryptography (or crypto) is one of the more advanced topics of information security, and one whose understanding requires the most schooling and experience. It is difficult to get right because there are many approaches to encryption, each with advantages and disadvantages that need to be thoroughly understood by web solution architects and developers. In addition, serious cryptography research is typically based in advanced mathematics and number theory, providing a serious barrier to entry.</p> <p>Instead of building cryptographic capability from scratch, it is strongly recommended that peer reviewed and open solutions be used, such as the Google Tink project, Libsodium, and secure storage capability built into many software frameworks and cloud services.</p>"},{"location":"archive/2018/c8-protect-data-everywhere/#mobile-application-secure-local-storage","title":"Mobile Application: Secure Local Storage","text":"<p>Mobile applications are at particular risk of data leakage because mobile devices are regularly lost or stolen yet contain sensitive data.</p> <p>As a general rule, only the minimum data required should be stored on the mobile device. But if you must store sensitive data on a mobile device, then sensitive data should be stored within each mobile operating systems specific data storage directory. On Android this will be the Android keystore and on iOS this will be the iOS keychain.</p>"},{"location":"archive/2018/c8-protect-data-everywhere/#secret-lifecycle","title":"Secret Lifecycle","text":"<p>Secret keys can be used in a number of sensitive functions. For example, they can be used to sign JWTs, encrypt credit cards, sign hash, provide various forms of authentication and more. In managing keys, a number of precautious should be adhered including but not limited to the following:</p> <ul> <li>Ensure that any secret key is protected from unauthorized access</li> <li>Store keys in a proper secrets vault as described in Application Secrets Management</li> <li>Use independent keys when multiple keys are required</li> <li>Build support for changing algorithms and keys when needed</li> <li>Build application features to handle a key rotation</li> </ul>"},{"location":"archive/2018/c8-protect-data-everywhere/#secret-datatype","title":"Secret Datatype","text":"<p>When an immutable datatype such as <code>string</code> is used to store secrets, secrets can remain plaintext in the memory for a long time. Even if you try to nullify the string value, it still remains in the memory.  <code>string</code> is an immutable type and cannot be changed. When you modify a string (try to overwrite it), a new copy of it is created.  This means another copy of the unprotected secret will remain in the memory.  Furthermore, there is no gurantee when garbage collector is going to clean up the secret. This increases exposure of plaintext secrets in the memory.</p> <p>If secrets remain unprotected in the memory, they can get disclosed on the disk or external log aggregators  through a number of scenarios: server crash logs, caching, serialisation or memory paging.</p> <p>A safe way to handle secret is by using Read Once pattern. Read once is a defensive design pattern where a value can be only accessed once. After the first read, value is cleared from memory, and subsequent access is not possible. For an example implementation see this post.</p>"},{"location":"archive/2018/c8-protect-data-everywhere/#application-secrets-management","title":"Application Secrets Management","text":"<p>Applications contain numerous \"secrets\" that are needed for security operations. These include certificates, SQL connection passwords, third party service account credentials, passwords, SSH keys, encryption keys and more. The unauthorized disclosure or modification of these secrets could lead to complete system compromise. In managing application secrets, consider the following.</p> <ul> <li>Don't store secrets in code, config files or pass them through environment variables. Use tools like GitRob or TruffleHog to scan code repos for secrets.</li> <li>Keep keys and your other application-level secrets in a secrets vault like KeyWhiz or Hashicorp's Vault project or Amazon KMS to provide secure storage and access to application-level secrets at run-time.</li> </ul>"},{"location":"archive/2018/c8-protect-data-everywhere/#vulnerabilities-prevented","title":"Vulnerabilities Prevented","text":"<ul> <li>OWASP Top 10 2017 - A3: Sensitive Data Exposure</li> <li>OWASP Mobile Top 10 2016 -M2: Insecure Data Storage</li> </ul>"},{"location":"archive/2018/c8-protect-data-everywhere/#references","title":"References","text":"<ul> <li>OWASP Cheat Sheet: Transport Layer Protection</li> <li>Ivan Ristic: SSL/TLS Deployment Best Practices</li> <li>OWASP Cheat Sheet: HSTS</li> <li>OWASP Cheat Sheet: Cryptographic Storage</li> <li>OWASP Cheat Sheet: Password Storage</li> <li>OWASP Cheat Sheet: Secrets Management</li> <li>OWASP Cheat Sheet: IOS Developer - Insecure Data Storage</li> <li>OWASP Testing Guide: Testing for TLS</li> <li>Do not use String to store secret. It gets disclosed</li> </ul>"},{"location":"archive/2018/c8-protect-data-everywhere/#tools","title":"Tools","text":"<ul> <li>SSLyze - SSL configuration scanning library and CLI tool</li> <li>SSLLabs - Free service for scanning and checking TLS/SSL configuration</li> <li>OWASP O-Saft TLS Tool - TLS connection testing tool</li> <li>GitRob - Command line tool to find sensitive information in publicly available files on GitHub</li> <li>TruffleHog  - Searches for secrets accidentally committed</li> <li>KeyWhiz - Secrets manager</li> <li>Hashicorp Vault - Secrets manager</li> <li>Amazon KMS - Manage keys on Amazon AWS</li> </ul>"},{"location":"archive/2018/c9-security-logging/","title":"C9: Implement Security Logging and Monitoring","text":""},{"location":"archive/2018/c9-security-logging/#description","title":"Description","text":"<p>Logging is a concept that most developers already use for debugging and diagnostic purposes. Security logging is an equally basic concept: to log security information during the runtime operation of an application. Monitoring is the live review of application and security logs using various forms of automation. The same tools and patterns can be used for operations, debugging and security purposes.</p>"},{"location":"archive/2018/c9-security-logging/#benefits-of-security-logging","title":"Benefits of Security Logging","text":"<p>Security logging can be used for: 1. Feeding intrusion detection systems 2. Forensic analysis and investigations 3. Satisfying regulatory compliance requirements</p>"},{"location":"archive/2018/c9-security-logging/#security-logging-implementation","title":"Security Logging Implementation","text":"<p>The following is a list of security logging implementation best practices.</p> <ul> <li>Follow a common logging format and approach within the system and across systems of an organization. An example of a common logging framework is the Apache Logging Services which helps provide logging consistency between Java, PHP, .NET,  and C++ applications.</li> <li>Do not log too much or too little. For example, make sure to always log the timestamp and identifying information including the source IP and user-id, but be careful not to log private or confidential data.</li> <li>Pay close attention to time syncing across nodes to ensure that timestamps are consistent.</li> </ul>"},{"location":"archive/2018/c9-security-logging/#logging-for-intrusion-detection-and-response","title":"Logging for Intrusion Detection and Response","text":"<p>Use logging to identify activity that indicates that a user is behaving maliciously. Potentially malicious activity to log includes:</p> <ul> <li>Submitted data that is outside of an expected numeric range.</li> <li>Submitted data that involves changes to data that should not be modifiable (select list, checkbox or other limited entry component).</li> <li>Requests that violate server-side access control rules.</li> <li>A more comprehensive list of possible detection points is available here.</li> </ul> <p>When your application encounters such activity, your application should at the very least log the activity and mark it as a high severity issue.  Ideally, your application should also respond to a possible identified attack, by for example invalidating the user\u2019s session and locking the user's account. The response mechanisms allows the software to react in realtime to possible identified attacks. </p>"},{"location":"archive/2018/c9-security-logging/#secure-logging-design","title":"Secure Logging Design","text":"<p>Logging solutions must be built and managed in a secure way. Secure Logging design may include the following:</p> <ul> <li>Encode and validate any dangerous characters before logging to prevent log injection attacks.</li> <li>Do not log sensitive information. For example, do not log password, session ID, credit cards, or social security numbers.</li> <li>Protect log integrity. An attacker may attempt to tamper with the logs. Therefore, the permission of log files and log changes audit should be considered.</li> <li>Forward logs from distributed systems to a central, secure logging service. This will ensure log data cannot be lost if one node is compromised. This also allows for centralized monitoring.</li> </ul>"},{"location":"archive/2018/c9-security-logging/#references","title":"References","text":"<ul> <li>OWASP Log injection</li> <li>OWASP Cheat Sheet: Logging How to properly implement logging in an application </li> <li>OWASP Cheat Sheet: Application Logging Vocabulary A standard vocabulary for logging security events</li> </ul>"},{"location":"archive/2018/c9-security-logging/#tools","title":"Tools","text":"<ul> <li>Apache Logging Services</li> </ul>"},{"location":"archive/2018/final-word/","title":"Final word","text":"<p>This document should be seen as a starting point rather than a comprehensive set of techniques and practices. We want to again emphasize that this document is intended to provide initial awareness around building secure software.</p> <p>Good next steps to help build an application security program include:</p> <ol> <li>To understand some of the risks in web application security please review the OWASP Top Ten and the OWASP Mobile Top Ten.</li> <li>Per Proactive Control #1, a secure development program should include a comprehensive list of security requirements based on a standard such as the OWASP (Web) ASVS and the OWASP (Mobile) MASVS.</li> <li>To understand the core building blocks of a secure software program from a more macro point of view please review the OWASP OpenSAMM project.</li> </ol> <p>If you have any questions for the project leadership team, please contact with your questions, comments, and ideas at our GitHub project repository: https://github.com/OWASP/www-project-proactive-controls/issues</p>"},{"location":"archive/2018/info/","title":"Info","text":""},{"location":"archive/2018/info/#table-of-contents","title":"Table of Contents","text":"<ul>   {% assign mypages = site.pages | where:\"document\",\"OWASP Top Ten Proactive Controls 2018\"| sort: \"order\" %}     {% for page in mypages %}     {% if page.order &gt; 0 %}     <li>{{ page.title }}</li>     {% endif %}     {% endfor %} </ul>"},{"location":"introduction/about-owasp/","title":"About OWASP","text":"<p>The Open Worldwide Application Security Project (OWASP) is an open community dedicated to enabling organizations to develop, purchase, and maintain applications and APIs that can be trusted.</p> <p>All OWASP tools, documents, videos, presentations, and chapters are free and open to anyone interested in improving application security.</p> <p>We advocate approaching application security as a people, process, and technology problem, because the most effective approaches to application security require improvements in these areas.</p> <p>OWASP is a new kind of organization. Our freedom from commercial pressures allows us to provide unbiased, practical, and cost-effective information about application security.</p> <p>OWASP is not affiliated with any technology company, although we support the informed use of commercial security technology. OWASP produces many types of materials in a collaborative, transparent, and open way.</p> <p>The OWASP Foundation is the non-profit entity that ensures the project's long-term success. Almost everyone associated with OWASP is a volunteer, including the OWASP board, chapter leaders, project leaders, and project members. We support innovative security research with grants and infrastructure.</p>"},{"location":"introduction/contributing/","title":"How to Contribute?","text":"<p>Please don\u2019t hesitate to contact the OWASP Proactive Control project with your questions, comments, and ideas.</p> <p>You can contact maintainers directly, use our project-top10-proactive-controls OWASP slack channel, or visit our github page.</p> <p>You find the source code of the current version of the OWASP Top 10 Proactive Controls in the <code>docs/</code> directory within the git repository. Please focus upon contributions for the current version, not archived versions within <code>docs/archive</code>.</p> <p>When you check our open issues on github, you can see that some issues are tagged with <code>help wanted</code> or <code>good first issue</code>. Choose these if you want to help out the project!</p>"},{"location":"introduction/contributing/#how-to-test-the-owasp-proactive-control-website-locally","title":"How to test the OWASP Proactive Control website locally?","text":"<p>If you can run python, you can locally run the OWASP Proactive Control website locally. We recommend this to test your changes before pushing them to github.</p> <p>To do this, we will use <code>venv</code> to create a local python environment to install the needed <code>mkdocs</code> package.</p> <pre><code># creates and activates a new python environment in a new `venv` directory\n$ python3 -m venv venv\n$ source venv/bin/activate\n\n# install the mkdocs package\n$ pip install mkdocs-material\n\n# switch into your checked-out OWASP Proactive Controls directory\n$ cd owasp-proactive-controls\n\n# run the local webserver\n$ mkdocs server\n\n# now you can point your browser to http://localhost:8000 and check\n# how your changes will look like\n</code></pre>"},{"location":"introduction/related-owasp-projects/","title":"Related OWASP Projects","text":"<p>OWASP is a volunteer-driven organization. Those volunteers contributed many useful documents, and this section points to some related OWASP documents and projects:</p>"},{"location":"introduction/related-owasp-projects/#owasp-top-10","title":"OWASP Top 10","text":"<p>The best-known OWASP document is the OWASP Top 10. They detail the most common web application vulnerabilities and are also the base for this document. In contrast, this document is focused on defensive techniques and controls as opposed to risks. Each control in this document will map to one or more items in the risk-based OWASP Top 10. This mapping information is included at the end of each control description.</p>"},{"location":"introduction/related-owasp-projects/#owasp-asvs","title":"OWASP ASVS","text":"<p>The OWASP Application Security Verification Standard (ASVS) is a catalog of available security requirements and verification criteria. OWASP ASVS can be a source of detailed security requirements for development teams. Security requirements are categorized into different buckets based on a shared higher order security function. For example, the ASVS contains categories such as authentication, access control, error handling / logging, and web services. Each category contains a collection of requirements that represent the best practices for that category drafted as verifiable statements.</p>"},{"location":"introduction/related-owasp-projects/#owasp-samm","title":"OWASP SAMM","text":"<p>Software Assurance Maturity Model (SAMM) is an open framework to help organizations implement a strategy for maturing the software security tailored to the specific risks of the organization. . SAMM supports the complete software lifecycle and can be used to identify what</p>"},{"location":"introduction/related-owasp-projects/#threat-modeling-in-general","title":"Threat Modeling in General","text":"<p>Threat Modeling is an important part of secure application development, which can help identify potential security threats, derive security requirements, and tailor security controls to prevent potential threats. Successful use of security requirements involves four steps: discovery, documentation, implementation, and verification of the correct implementation of the functionality within an application. Threat modelling is one way to derive security requirements. Other sources are: industry standards, applicable laws, history of past vulnerabilities. Modeling tools, like OWASP Threat Dragon can be used to create threat model diagrams as part of a secure development lifecycle.</p>"},{"location":"introduction/related-owasp-projects/#domain-specific-documents","title":"Domain-Specific Documents","text":"<p>It is important to notice that this document primarily focuses on web applications, but other Top 10s could apply to your application, too. Examples of those are:</p> <ul> <li>OWASP API Top 10</li> <li>OWASP Mobile Application Top 10</li> </ul>"},{"location":"the-top-10/c1-accesscontrol/","title":"C1: Implement Access Control","text":""},{"location":"the-top-10/c1-accesscontrol/#description","title":"Description","text":"<p>Access Control (or Authorization) is allowing or denying specific requests from a user, program, or process. With each access control decision, a given subject requests access to a given object. Access control is the process that considers the defined policy and determines if a given subject is allowed to access a given object. Access control also involves the act of granting and revoking those privileges. Access Control often applies on multiple levels, e.g., given an application with a database backend, it applies both on the business logic level as well as on a database row level. In addition, applications can offer multiple ways of performing operations (e.g., through APIs or the website). All those different levels and access paths must be aligned, i.e., use the same access control checks, to protect against security vulnerabilities. Authorization (verifying access to specific features or resources) is not equivalent to authentication (verifying identity).</p>"},{"location":"the-top-10/c1-accesscontrol/#threats","title":"Threats","text":"<ul> <li>An attacker could take advantage of a loosely configured access control policy to access data the organization did not intend to make accessible.</li> <li>An attacker could discover multiple access control components within an application and exploit the weakest.</li> <li>An administrator could forget to decommission an old account, and an attacker could discover that account and use it to access data.</li> <li>An attacker could gain access to data that had a policy that dropped into a final step of allowing access. (Lack of default deny)</li> </ul>"},{"location":"the-top-10/c1-accesscontrol/#implementation","title":"Implementation","text":"<p>Below is a minimum set of access control design requirements that should be considered at the initial stages of application development.</p>"},{"location":"the-top-10/c1-accesscontrol/#1-design-access-control-thoroughly-up-front","title":"1) Design Access Control Thoroughly Up Front","text":"<p>Once you have chosen a specific access control design pattern, it is often difficult and time-consuming to re-engineer access control in your application with a new pattern. Access Control is one of the main areas of application security design that must be thoroughly designed up front, especially when addressing requirements like multi-tenancy and horizontal (data dependent) access control.</p> <p>Two core types of access control design should be considered.</p> <ul> <li>Role Based Access Control (RBAC) is a model for controlling access to resources where permitted actions on resources are identified with roles rather than with individual subject identities.</li> <li>Attribute Based Access Control (ABAC) will grant or deny user access based on arbitrary attributes of the user and arbitrary attributes of the object, and environment conditions that may be globally recognized, and more relevant to the policies at hand. Access Control design may start simple but can often become complex and feature-heavy security control. When evaluating the access control capability of software frameworks, ensure that your access control functionality will allow for customization for your specific access control feature need.</li> </ul>"},{"location":"the-top-10/c1-accesscontrol/#2-force-every-access-request-to-go-through-an-access-control-check","title":"2) Force Every Access Request to Go Through an Access Control Check","text":"<p>Ensure that all access requests are forced to go through an access control verification layer. Technologies like Java filters or other automatic request processing mechanisms are ideal programming components that will ensure that all requests go through an access control check. This is referred to as Policy Enforcement Point in RFC 2904.</p>"},{"location":"the-top-10/c1-accesscontrol/#3-consolidate-the-access-control-check","title":"3) Consolidate the access control check","text":"<p>Use a single access control procedure or routine. This prevents the scenario where you have multiple access control implementations, where most are correct, but some are flawed. By using a centralized approach, you can focus security resources on reviewing and fixing one central library or function that performs the access control check, and then reuse it throughout your code base and organization.</p>"},{"location":"the-top-10/c1-accesscontrol/#4-deny-by-default","title":"4) Deny by Default","text":"<p>Ensure that by default, all the requests are denied, unless they are specifically allowed. This also includes accessing API (REST or webhooks) with missing access controls. There are many ways that this rule will manifest in the application code. Some examples are:</p> <ol> <li> <p>Application code may throw an error or exception while processing access control requests. In these cases, access control should always be denied.</p> </li> <li> <p>When an administrator creates a new user or a user registers for a new account, that account should have minimal or no access by default until that access is configured.</p> </li> <li> <p>When a new feature is added to an application, all users should be denied to use it until it\u2019s properly configured.</p> </li> </ol>"},{"location":"the-top-10/c1-accesscontrol/#5-principle-of-least-privilege-just-in-time-jit-just-enough-access-jea","title":"5) Principle of Least Privilege / Just in Time (JIT), Just Enough Access (JEA)","text":"<p>An example of implementing that principle is to create dedicated privileged roles and accounts for every organization function that requires highly privileged activities and avoid using an \u201cadmin\u201d role/account that is fully privileged daily.</p> <p>To further improve the security, you can implement Just-in-Time (JIT) or Just-enough-Access (JEA): ensure that all users, programs, or processes are only given just enough access to achieve their current mission. This access should be provided just in time, when the subject makes the request, and the access should be granted for a short time. Be wary of systems that do not provide granular access control configuration capabilities.</p>"},{"location":"the-top-10/c1-accesscontrol/#6-do-not-hardcode-roles","title":"6) Do not Hardcode Roles","text":"<p>Many application frameworks default to access control that is role based. It is common to find application code filled with checks of this nature.</p> <pre><code>if (user.hasRole(\"ADMIN\")) || (user.hasRole(\"MANAGER\")) {\n    deleteAccount();\n}\n</code></pre> <p>Be careful about this type of role-based programming in code. It has the following limitations or dangers:</p> <ul> <li>Role-based programming of this nature is fragile. It is easy to create incorrect or missing role checks in code.</li> <li>Hard-Coded Roles do not allow for multi-tenancy. Extreme measures like forking the code or adding checks for each customer will be required to allow role-based systems to have different rules for different customers.</li> <li>Large code bases with many access control checks can make it difficult to audit or verify the overall application access control policy.</li> <li>Hard coded roles can also be seen as a backdoor when discovered during audits.</li> </ul>"},{"location":"the-top-10/c1-accesscontrol/#7-abac-policy-enforcement-point-example","title":"7) ABAC Policy Enforcement Point Example","text":"<p>Please consider the following access control enforcement points using this following programming methodology:</p> <pre><code>if (user.hasPermission(\"DELETE_ACCOUNT\")) {\n    deleteAccount();\n}\n</code></pre> <p>Attribute or feature-based access control checks of this nature are the starting point to building well-designed and feature-rich access control systems. This type of programming also allows for greater access control customization capability over time.</p>"},{"location":"the-top-10/c1-accesscontrol/#vulnerabilities-prevented","title":"Vulnerabilities Prevented","text":"<ul> <li>OWASP Top 10 2021-A01_2021-Broken Access Control</li> <li>CWE Top 25 - 11:CWE-862 Missing Authorization</li> <li>CWE Top 25 - 24:CWE-863 Incorrect Authorization</li> </ul>"},{"location":"the-top-10/c1-accesscontrol/#references","title":"References","text":"<ul> <li>OWASP Cheat Sheet: Authorization Cheat Sheet</li> <li>OWASP Cheat Sheet: Logging Cheat Sheet</li> <li>OWASP ASVS V4 Access Control</li> <li>OWASP Testing Guide: Authorization Testing</li> <li>OAuth2.0 protocol for authorization</li> <li>Draft OAuth2.1</li> <li>Policy Enforcement in RFC 2904</li> </ul>"},{"location":"the-top-10/c1-accesscontrol/#tools","title":"Tools","text":"<ul> <li>ZAP with the optional Access Control Testing add-on</li> <li>Open Policy Agent</li> </ul>"},{"location":"the-top-10/c10-stop-server-side-request-forgery/","title":"C10: Stop Server Side Request Forgery","text":""},{"location":"the-top-10/c10-stop-server-side-request-forgery/#description","title":"Description","text":"<p>While Injection Attacks typically target the victim server itself, Server-Side Request Forgery (SSRF) attacks try to coerce the server to perform a request on behalf of the attacker. Why is this beneficial for the attacker? The outgoing request will be performed with the identity of the victim server and thus the attacker might execute operations with elevated operations.</p>"},{"location":"the-top-10/c10-stop-server-side-request-forgery/#threats","title":"Threats","text":"<p>Examples of this contain:</p> <ul> <li>If an SSRF attack is possible on an server within the DMZ, an attacker might be able to access other servers within the DMZ without passing a perimeter firewall</li> <li>Many servers have local services running on localhost, often without any authentication/authorization as localhost. This can be abused by SSRF attacks.</li> <li>If SSO is used, SSRF can be used to extract tokens/tickets/hashes from servers etc.</li> </ul>"},{"location":"the-top-10/c10-stop-server-side-request-forgery/#implementation","title":"Implementation","text":"<p>There multiple ways of preventing SSRF:</p> <ul> <li>Input validation</li> <li>If outgoing requests have to be made, check the target against an allow-list</li> <li>If using XML, configure parser securely to prevent XEE Be aware of Unicode and other Character transformations when performing input validation.</li> </ul>"},{"location":"the-top-10/c10-stop-server-side-request-forgery/#vulnerabilities-prevented","title":"Vulnerabilities Prevented","text":"<ul> <li>A10:2021 \u2013 Server-Side Request Forgery (SSRF)</li> </ul>"},{"location":"the-top-10/c10-stop-server-side-request-forgery/#references","title":"References","text":"<ul> <li>Server-Side Request Forgery Prevention Cheat Sheet</li> <li>A New Era of SSRF - Exploiting URL Parser in Trending Programming Languages!</li> </ul>"},{"location":"the-top-10/c10-stop-server-side-request-forgery/#tools","title":"Tools","text":"<ul> <li>SSRFmap</li> </ul>"},{"location":"the-top-10/c2-crypto/","title":"C2: Use Cryptography the proper way","text":""},{"location":"the-top-10/c2-crypto/#description","title":"Description","text":"<p>Sensitive data such as passwords, credit card numbers, health records, personal information and business secrets require extra protection, particularly if that data falls under privacy laws (EU\u2019s General Data Protection Regulation GDPR), financial data protection rules such as PCI Data Security Standard (PCI DSS) or other regulations.</p> <p>Attackers can steal data from web and web service applications in a number of ways. For example, if sensitive information is sent over the internet without communications security, then an attacker on a shared wireless connection could capture and steal another user\u2019s data. Also, an attacker could use SQL Injection to steal passwords and other credentials from an applications database and expose that information to the public.</p> <p>Privacy is assurance that the confidentiality of, and access to, certain information about an entity is protected. Users of the things developers build want their information protected from disclosure.</p> <p>Protect sensitive data such as passwords, credit card numbers, health records, personal information, and business secrets.</p> <p>Regulations exist to force companies to protect user\u2019s personal information. The European Union values individual privacy, such that they created the EU General Data Protection Regulation GDPR. Financial data protection rules such as PCI Data Security Standard (PCI DSS) also exist to protect cardholder privacy.</p> <p>Cryptography is the art or science concerning the principles, means, and methods for rendering plain information unintelligible and restoring encrypted information to intelligible form. Individual user data requires cryptography to ensure it is properly cared for when stored.</p>"},{"location":"the-top-10/c2-crypto/#classify-data-types-in-your-application","title":"Classify data types in your application","text":"<p>It\u2019s critical to classify data in your system and determine which level of sensitivity each piece of data belongs to. Each data category can then be mapped to protection rules necessary for each level of sensitivity. For example, public marketing information that is not sensitive may be categorized as public data which is ok to place on the public website. Credit card numbers may be classified as private user data which will need to be encrypted while stored, processed or in transit.</p> <p>Data classification can also be mandated by legislation, e.g., GDPR when serving users within the European Union.</p> <p>Classify the data sent, processed, and stored in your system and determine what level of sensitivity the data belongs to. Categorize the data to define specific protection rules for each type. The rule creation enables your team to perform data minimization and try not to store sensitive data whenever possible.</p> <p>For example, public marketing information that is not sensitive may be categorized as public data, which is okay to place on the public website and does not need to be encrypted. Credit card numbers need to be encrypted while stored, processed, and in transit.</p>"},{"location":"the-top-10/c2-crypto/#threats","title":"Threats","text":"<ul> <li>An attacker could exploit weak or outdated encryption algorithms to decrypt sensitive information.</li> <li>Improperly stored encryption keys could be compromised, leading to unauthorized data access.</li> <li>An attacker can perform SQL Injection attacks to steal encrypted data from databases.</li> <li>Failure to implement proper key management could result in unauthorized access to encrypted data.</li> </ul>"},{"location":"the-top-10/c2-crypto/#implementation","title":"Implementation","text":"<p>When it comes to cryptography, there are a few simple rules:</p> <ul> <li>Never transmit plain-text data. The technical capability exists to easily encrypt all data that is sent between any point A and B. Embrace the use of cryptography to protect all data at rest and in transit.</li> <li>Do not create your own cryptographic protocols. The creation of a cryptographic protocol is a tricky proposition. When NIST created AES, they had an open competition where the best cryptographers worldwide submitted proposals and then looked for flaws in the other proposals. Instead of using your developer cycles to create a new crypto protocol, use an existing, battle-tested standard. Focus your innovation on making your feature or product better.</li> <li>Do not implement cryptographic routines. Use an existing library that implements cryptographic routines.</li> </ul>"},{"location":"the-top-10/c2-crypto/#protect-data-at-rest","title":"Protect data at rest","text":"<p>The first rule of sensitive data management is to avoid storing sensitive data when at all possible. If you must store sensitive data then make sure it is cryptographically protected in some way to avoid unauthorized disclosure and modification. Cryptography (or crypto) is one of the more advanced topics of information security and one whose understanding requires the most schooling and experience. It is difficult to get right because there are many approaches to encryption, each with advantages and disadvantages that need to be thoroughly understood by web solution architects and developers. In addition, serious cryptography research is typically based on advanced mathematics and number theory, providing a serious barrier to entry. Designing or building cryptographic algorithms is very error-prone (see side-channel attacks). Instead of building cryptographic capability from scratch, it is strongly recommended that peer-reviewed and open solutions be used, such as the Google <code>Tink</code> project, <code>Libsodium</code>, and secure storage capability built into many software frameworks and cloud services.</p>"},{"location":"the-top-10/c2-crypto/#store-passwords-safely","title":"Store passwords safely","text":"<p>Most web applications will face the challenge of storing user\u2019s passwords to set up authentication services. Store the passwords safely to ensure an attacker cannot quickly obtain them. Do not store the passwords in plain text anywhere in the database. Always use a hashing function to store passwords. Enhance the hashing function by adding a random salt for each item to increase the randomness of hashes.</p>"},{"location":"the-top-10/c2-crypto/#special-case-application-secrets-management","title":"Special Case: Application Secrets management","text":"<p>Applications contain numerous \u201csecrets\u201d that are needed for security operations. These include certificates, SQL connection passwords, third party service account credentials, passwords, SSH keys, encryption keys and more. The unauthorized disclosure or modification of these secrets could lead to complete system compromise. In managing application secrets, consider the following: Don\u2019t store secrets in code, config files or pass them through environment variables. Use tools like GitRob or TruffleHog to scan code repos for secrets. Your code should be written in a way that even if your code would be disclosed, e.g., due to a defective configured github repository, your running applications are still secure. Keep keys and your other application-level secrets in a secrets vault like KeyWhiz or Hashicorp\u2019s Vault project , Amazon KMS, or AWS Secrets Manager to provide secure storage and access to application-level secrets at run-time. Many web-frameworks such as Ruby on Rails provide integrated ways of dealing with secrets and credentials.</p>"},{"location":"the-top-10/c2-crypto/#key-lifecycle","title":"Key Lifecycle","text":"<p>Secret keys are used in applications with a number of sensitive functions. For example, secret keys can be used to sign JWTs, protect credit cards, provide various forms of authentication as well as facilitate other sensitive security features. In managing keys, a number of rules should be followed including</p> <ul> <li>Ensure that any secret key is protected from unauthorized access</li> <li>All authorized access to a secret key is logged for forensic purposes</li> <li>Store keys in a proper secrets vault as described below</li> <li>Use independent keys when multiple keys are required</li> <li>Build support for changing cryptographic algorithms to prepare for future needed changes</li> <li>Build application features to support and handle key rotation gracefully. This can happen on a periodic base or after a key has been compromised.</li> </ul>"},{"location":"the-top-10/c2-crypto/#protect-data-in-transit","title":"Protect data in transit","text":"<p>Sensitive data such as passwords, credit card numbers, health records, personal information and business secrets require extra protection, particularly if that data falls under privacy laws (EU\u2019s General Data Protection Regulation GDPR), financial data protection rules such as PCI Data Security Standard (PCI DSS) or other regulations. Attackers can steal data from web and web service applications in a number of ways. For example, if sensitive information is sent over the internet without communications security, then an attacker on a shared wireless connection could capture and steal another user\u2019s data. Also, an attacker could use SQL Injection to steal passwords and other credentials from an applications database and expose that information to the public.</p>"},{"location":"the-top-10/c2-crypto/#use-current-cryptographic-protocols","title":"Use current cryptographic protocols","text":"<p>When developing web applications, use TLSv1.2 or TLSv1.3, preferably TLSv1.3. If possible, investigate the usage of HTTP/2 or HTTP/3 as they warrant the usage of security TLS versions/algorithms.</p> <ul> <li>Directly turn off other older protocols to avoid protocol downgrade attacks.</li> <li>Do not offer HTTP. Disable both HTTP and SSL compression.</li> <li>Always utilize a secure random number generator (RNG).</li> </ul>"},{"location":"the-top-10/c2-crypto/#instruct-clients-to-enforce-transport-level-encryption","title":"Instruct Clients to enforce Transport Level Encryption","text":"<p>Web servers can instruct web browsers to uphold minimal transport-level security:</p> <ul> <li>Use the Strict-Transport-Security Header to enforce opportunistic encryption and certificate validation checks.</li> <li>Content-Security-Policy allows for automatic client-side upgrade from HTTP to HTTPS.</li> <li>When setting cookies, always utilize the \u201csecure\u201d flag to prevent transmission over HTTP.</li> </ul>"},{"location":"the-top-10/c2-crypto/#support-cryptographic-agility-cryptography-changes-over-time","title":"Support Cryptographic Agility: Cryptography changes over Time","text":"<p>Cryptographic recommendations change over time. To allow for this, make cryptographic choices such as used algorithms or key sizes configurable. This is called Cryptographic Agility</p> <p>If the application needs to support high availability, design key-rollover procedures.</p>"},{"location":"the-top-10/c2-crypto/#vulnerabilities-prevented","title":"Vulnerabilities Prevented","text":"<ul> <li>https://owasp.org/Top10/A02_2021-Cryptographic_Failures/</li> <li>https://mas.owasp.org/MASVS/controls/MASVS-CRYPTO-1/</li> </ul>"},{"location":"the-top-10/c2-crypto/#references","title":"References","text":"<ul> <li>OWASP Cheat Sheet: Transport Layer Protection</li> <li>Ivan Ristic: SSL/TLS Deployment Best Practices</li> <li>OWASP Cheat Sheet: HSTS</li> <li>OWASP Cheat Sheet: Cryptographic Storage</li> <li>OWASP Cheat Sheet: Password Storage</li> <li>OWASP Web Security Testing Guide: Testing for Weak Cryptography</li> <li>OWASP WrongSecrets : vulnerable application with example of how to NOT use secrets</li> </ul>"},{"location":"the-top-10/c2-crypto/#tools","title":"Tools","text":"<ul> <li>https://github.com/nabla-c0d3/sslyze</li> <li>https://testssl.sh/</li> <li>SSLyze - SSL configuration scanning library and CLI tool</li> <li>SSLLabs - Free service for scanning and checking TLS/SSL configuration</li> <li>OWASP O-Saft TLS Tool - TLS connection testing tool</li> <li>GitRob - Command line tool to find sensitive information in publicly available files on GitHub</li> <li>TruffleHog - Searches for secrets accidentally committed</li> <li>Hashicorp Vault - Secrets manager</li> <li>Amazon KMS - Manage keys on AWS</li> <li>AWS Secrets Manager - Manage secrets on AWS</li> <li>Azure Key Vault - Manage keys and secrets on Azure</li> <li>Google Cloud KMS - Manage keys on Google Cloud Platform</li> <li>Google Secret Manager - Manage secrets on Google Cloud Platform</li> </ul>"},{"location":"the-top-10/c3-validate-input-and-handle-exceptions/","title":"C3: Validate all Input &amp; Handle Exceptions","text":""},{"location":"the-top-10/c3-validate-input-and-handle-exceptions/#description","title":"Description","text":"<p>Input validation is a programming technique that ensures only properly formatted data may enter a software system component. When the injection attack targets a client (for example JavaScript based attacks), web servers can perform quoting/encoding on the attacker-provided data before forwarding it to the client.</p> <p>Injection attacks commonly occur if an application confuses data input as executable commands and are often possible where input validation is forgotten or implemented wrong. For example, imagine that a web application accepts an email address as input from a user. The email address would be the expected \u201cdata\u201d. Attackers now search for ways to confuse applications to execute this (supposed) data as commands. Different injection attacks target different areas:</p> <ul> <li>When an attacker tricks an application into interpreting user input (data) as SQL commands (or parts thereof), there is a SQL injection attack. The injected command executes within the database server.</li> <li>Remote command injection (RCE) happens if an application confuses user data with commands that execute on the web application server/host. Server-Side Template Injections are another example of injections executed within the application server.</li> <li>When Javascript-Injections happen, a web application has accepted user data but is coerced to execute that data as code. Injected javascript code is typically executed within another user\u2019s web browser, thus not directly attacking the web server but other users.</li> </ul>"},{"location":"the-top-10/c3-validate-input-and-handle-exceptions/#syntactic-and-semantic-validity","title":"Syntactic and Semantic Validity","text":"<p>An application should check that data is syntactically and semantically valid (in that order) before using it in any way (including displaying it back to the user).</p> <ul> <li> <p>Syntactic validity means that the data is in the expected form. For example, an application may allow users to select a four-digit \u201caccount ID\u201d to perform some operation. The application should assume the user is entering a SQL injection payload and check that the data entered by the user is precisely four digits in length and consists only of numbers (in addition to utilizing proper query parametrization).</p> </li> <li> <p>Semantic validity includes only accepting input within an acceptable range for application functionality and context. For example, a start date must be before an end date when choosing date ranges.</p> </li> </ul>"},{"location":"the-top-10/c3-validate-input-and-handle-exceptions/#threats","title":"Threats","text":"<ul> <li>An attacker could exploit SQL injection vulnerabilities by submitting malicious input to manipulate database queries, potentially gaining unauthorized access to sensitive data.</li> <li>An attacker could perform cross-site scripting (XSS) attacks by injecting malicious scripts into web pages, which are then executed in other users' browsers, potentially stealing session tokens or personal information.</li> <li>An attacker could execute arbitrary code remotely by injecting malicious commands into system calls or APIs, potentially taking control of the target system.</li> <li>An attacker could trigger buffer overflow errors by supplying input exceeding expected lengths, potentially overwriting memory and executing arbitrary code.</li> <li>An attacker could launch denial of service attacks by overwhelming systems with malformed or excessive input, potentially rendering services unavailable to legitimate users.</li> <li>An attacker could access unauthorized files and directories through path traversal attacks, potentially exposing sensitive system files or configuration data.</li> <li>An attacker could insert malicious payloads into XML documents to exploit XML parsing vulnerabilities, potentially leading to information disclosure or system compromise.</li> <li>An attacker could inject malicious templates into server-side template engines, potentially achieving remote code execution on the server.</li> <li>An attacker could confuse applications and bypass security controls through HTTP parameter pollution attacks, potentially manipulating application logic or accessing restricted functionality.</li> </ul>"},{"location":"the-top-10/c3-validate-input-and-handle-exceptions/#implementation","title":"Implementation","text":"<p>Protection against Injection Attacks is typically based upon a defense-in-depth approach and incorporates input filtering, output escaping, and utilization of hardening mechanisms. The former two are only dependent upon implemented security measures, and the latter is mostly dependent upon client-support, e.g., when protecting against XSS, filtering XSS from input and escaping output data server-side would prevent XSS regardless of the used web browser; adding a Content-Security-Policy prevents XSS, but only if the user\u2019s browser supports it. Due to this, security must never depend upon optional hardening measures alone.</p>"},{"location":"the-top-10/c3-validate-input-and-handle-exceptions/#prevent-malicious-data-from-entering-the-system","title":"Prevent malicious data from entering the system","text":"<p>Never trust provided data! Screen all data for malicious patterns or, even better, check all data against an allow list.</p>"},{"location":"the-top-10/c3-validate-input-and-handle-exceptions/#allowlisting-vs-denylisting","title":"Allowlisting vs Denylisting","text":"<p>There are two general approaches to performing syntactic validation, commonly known as allow and deny lists:</p> <ul> <li>Denylisting or denylist validation attempts to check that given data does not contain \u201cknown bad\u201d content. For example, a web application may block input containing the exact text &lt;SCRIPT&gt; to help prevent XSS. However, this defense could be evaded with a lowercase script tag or a script tag of mixed case.</li> <li>Allowlisting or allowlist validation attempts to check that a given data matches a set of \u201cknown good\u201d rules. For example, a allowlist validation rule for a US state would be a 2-letter code that is only one of the valid US states. Allowlisting is the recommended minimal approach. Denylisting is prone to error, can be bypassed with various evasion techniques, and can be dangerous when dependent on itself. Even though denylisting is often evaded, it can be useful to help detect obvious attacks. So while allowlisting helps limit the attack surface by ensuring data is of the right syntactic and semantic validity, denylisting helps detect and potentially stop obvious attacks.</li> </ul>"},{"location":"the-top-10/c3-validate-input-and-handle-exceptions/#client-side-and-server-side-validation","title":"Client side and Server side Validation","text":"<p>Always perform Input validation on the server side for security. While client-side validation is useful for both functional and security purposes, it is easily bypassed. Therefore, client-side validation is performed for usability purposes, but the application\u2019s security must not depend upon it. For example, JavaScript validation may alert the user that a particular field must consist of numbers. Still, the server-side application must validate that the submitted data only consists of numbers in the appropriate numerical range for that feature. Another benefit of using both client AND server-side validation is that any server-side validation warnings can be logged to inform operations of a potential hacker as the client-side validation had been bypassed.</p>"},{"location":"the-top-10/c3-validate-input-and-handle-exceptions/#regular-expressions","title":"Regular Expressions","text":"<p>Regular expressions offer a way to check whether data matches a specific pattern. Let\u2019s start with a basic example. The following regular expression defines an allowlist rule to validate usernames.</p> <pre><code>^\\[a-z0-9_\\]{3,16}$\n</code></pre> <p>This regular expression allows only lowercase letters, numbers, and the underscore character. The username is also restricted to a length of 3 and 16 characters.</p> <p>Caution: Potential for Denial of Service</p> <p>Care should be exercised when creating regular expressions. Poorly designed expressions may result in potential denial of service conditions (aka ReDoS ). Various tools can be tested to verify that regular expressions are not vulnerable to ReDoS.</p> <p>Caution: Complexity</p> <p>Regular expressions are just one way to accomplish validation. Regular expressions can be difficult to maintain or understand for some developers. Other validation alternatives involve writing validation methods programmatically, which can be easier to maintain for some developers.</p>"},{"location":"the-top-10/c3-validate-input-and-handle-exceptions/#unexpected-user-input-mass-assignment","title":"Unexpected User Input (Mass Assignment)","text":"<p>Some frameworks support automatic binding of HTTP requests parameters to server-side objects used by the application. This auto-binding feature can allow an attacker to update server-side objects that were not meant to be modified. The attacker can possibly modify their access control level or circumvent the intended business logic of the application with this feature. This attack has a number of names including: mass assignment, autobinding and object injection. As a simple example, if the user object has a field privilege which specifies the user\u2019s privilege level in the application, a malicious user can look for pages where user data is modified and add privilege=admin to the HTTP parameters sent. If auto-binding is enabled in an insecure fashion, the server-side object representing the user will be modified accordingly.</p> <p>Two approaches can be used to handle this:</p> <ul> <li>Avoid binding input directly and use Data Transfer Objects (DTOs) instead.</li> <li>Enable auto-binding but set up allowlist rules for each page or feature to define which fields are allowed to be auto-bound.</li> </ul> <p>More examples are available in the OWASP Mass Assignment Cheat Sheet</p>"},{"location":"the-top-10/c3-validate-input-and-handle-exceptions/#limits-of-input-validation","title":"Limits of Input Validation","text":"<p>Input validation does not always make data \u201csafe\u201d since certain complex input forms may be \u201cvalid\u201d but still dangerous. For example, a valid email address may contain a SQL injection attack, or a valid URL may contain a Cross Site Scripting attack. Additional defenses besides input validation should always be applied to data, such as query parameterization or escaping.</p>"},{"location":"the-top-10/c3-validate-input-and-handle-exceptions/#use-mechanisms-that-uphold-the-separation-of-data-and-commands","title":"Use mechanisms that uphold the separation of data and commands","text":"<p>Even if malicious data has passed the input checking, applications can prevent injection attacks by never executing those malicious data as commands/code. Multiple measures can achieve this goal, most of them are technology-dependent. For Example:</p> <ul> <li>When using relational databases through SQL, utilize Prepared-Statements. SQL Injection attacks typically happen if an attacker can provide input data that \u201cescapes\u201d from SQL-Commands created through string concatenation. Using Prepared Statements allows the computer to automatically encode input data in a way that does not allow it to \u201cescape\u201d from the command template.</li> <li>When using an ORM, be sure that you know how objects are mapped to SQL commands. While their layer of indirection might prevent common SQLi, specially prepared attacks are often still feasible.</li> <li>Server-Side Template Injection (SSTI) uses a templating engine on the server-side to dynamically generate content that is then displayed to the user. SSTI engines often allow configuration of sandboxing, i.e., only allow execution of a limited amount of methods.</li> <li>Executing System Commands with user input as parameters is prone to injection attacks. If feasible, this should be avoided.</li> </ul>"},{"location":"the-top-10/c3-validate-input-and-handle-exceptions/#javascript-injection-attacks","title":"JavaScript Injection Attacks","text":"<p>A special case are JavaScript based Injection attacks (XSS). The injected malicious code is commonly executed within a victim\u2019s browser. Typically, attackers try to steal the user\u2019s session information from the browser and not directly execute commands (as they do on the server-side). In addition to server-side input filtering and output escaping, multiple client-side hardening measurements can be taken (these also protect against the special case of DOM-based XSS where no server-side logic is involved and thus cannot filter malicious code):</p> <ul> <li>Mark sensitive cookies with httpOnly so JavaScript cannot access them</li> <li>Utilize a Content-Security-Policy to reduce the attack-surface for JavaScript-based Attacks</li> <li>Use a secure by default framework like Angular</li> </ul>"},{"location":"the-top-10/c3-validate-input-and-handle-exceptions/#validating-and-sanitizing-html","title":"Validating and Sanitizing HTML","text":"<p>Consider an application that needs to accept HTML from users (via a WYSIWYG editor that represents content as HTML or features that directly accept HTML in input). In this situation, validation or escaping will not help.</p> <ul> <li>Regular expressions are not expressive enough to understand the complexity of HTML5.</li> <li>Encoding or escaping HTML will not help since it will cause the HTML not to render properly.</li> </ul> <p>Therefore, you need a library to parse and clean HTML formatted text. Please see the XSS Prevention Cheat Sheet on HTML Sanitization for more information on HTML Sanitization.</p>"},{"location":"the-top-10/c3-validate-input-and-handle-exceptions/#special-case-validate-data-during-deserialization","title":"Special Case: Validate Data During Deserialization","text":"<p>Some forms of input are so complex that validation can only minimally protect the application. For example, it\u2019s dangerous to deserialize untrusted data or data that can be manipulated by an attacker. The only safe architectural pattern is to not accept serialized objects from untrusted sources or to only deserialize in limited capacity for only simple data types. You should avoid processing serialized data formats and use easier to defend formats such as JSON when possible.</p> <p>If that is not possible then consider a series of validation defenses when processing serialized data.</p> <ul> <li>Implement integrity checks and encryption of the serialized objects to prevent hostile object creation or data tampering.</li> <li>Enforce strict type constraints during deserialization before object creation; typically code is expecting a definable set of classes. Bypasses to this technique have been demonstrated.</li> <li>Isolate code that deserializes, such that it runs in very low privilege environments, such as temporary containers.</li> <li>Log security deserialization exceptions and failures, such as where the incoming type is not the expected type, or the deserialization throws exceptions.</li> <li>Restrict or monitor incoming and outgoing network connectivity from containers or servers that deserialize.</li> <li>Monitor deserialization, alerting if a user deserializes constantly.</li> </ul>"},{"location":"the-top-10/c3-validate-input-and-handle-exceptions/#vulnerabilities-prevented","title":"Vulnerabilities Prevented","text":"<ul> <li>Input validation reduces the attack surface of applications and can sometimes make attacks more difficult against an application.</li> <li>Input validation is a technique that provides security to certain forms of data, specific to certain attacks and cannot be reliably applied as a general security rule.</li> <li>Input validation should not be used as the primary method of preventing XSS, SQL Injection and other attacks.</li> <li>2023 CWE Top 25 - 3 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')</li> <li>2023 CWE Top 25 - 5 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')</li> <li>2023 CWE Top 25 - 16 Improper Neutralization of Special Elements used in a Command ('Command Injection')</li> <li>2023 CWE Top 25 - 23 Improper Control of Generation of Code ('Code Injection')</li> </ul>"},{"location":"the-top-10/c3-validate-input-and-handle-exceptions/#references","title":"References","text":"<p>Regarding Input Validation:</p> <ul> <li>OWASP Cheat Sheet: Input Validation</li> <li>OWASP Testing Guide: Testing for Input Validation</li> <li>Injection Prevention Cheat Sheet</li> <li>Injection Prevention Cheat Sheet in Java</li> <li>Hardening with CSP: CSP with Google</li> <li>Deploying CSP in Single Page Applications</li> </ul>"},{"location":"the-top-10/c3-validate-input-and-handle-exceptions/#tools","title":"Tools","text":"<p>Helping with Input Validation:</p> <ul> <li>OWASP Java HTML Sanitizer Project</li> <li>Java JSR-303/JSR-349 Bean Validation</li> <li>Java Hibernate ValidatorApache Commons ValidatorPHP\u2019s filter functions</li> </ul> <p>Testing for Injection Attacks:</p> <ul> <li>Sqlmap.py</li> <li>ZAP-based scans</li> </ul> <p>Helping with Hardening:</p> <ul> <li>CSP Evaluator</li> </ul>"},{"location":"the-top-10/c4-secure-architecture/","title":"C4: Address Security from the Start","text":""},{"location":"the-top-10/c4-secure-architecture/#description","title":"Description","text":"<p>When designing a new application, creating a secure architecture prevents vulnerabilities before they even become part of the application. This prevents costly repairs and repudiation problems.</p> <p>There are design principles that lead to secure architectures:</p> <ul> <li>keep it simple, stupid (KISS): the easier an application is to understand, the easier it is to reason about its components and their interactions. This allows to reason about the application's security behavior.</li> <li>Make it easy to do the right thing: don't expect the user to read documentation or invest time to \"do things the right way\". By default the application should behave in a secure manner. To make it insecure, an explicit action by the user has to take place.</li> <li>don't rely on obscurity: if the only security is due to the intransparency of the application or its source code, the application is not secure at all.</li> <li>Identify and minimize your exposed components (\"attack surface\"): attackers cannot attack what's not there.</li> <li>Design for Defense-in-Depth: think about what happens, if a component is breached and about the potential blast radius of an attack.</li> </ul>"},{"location":"the-top-10/c4-secure-architecture/#threats","title":"Threats","text":"<ul> <li>If the application is only protected by security-by-obscurity, an attacker that reverse-engineers the application has full permissions as soon the obfuscation is cleared-up. In addition, an attacker is able to monitor network traffic: while the obfuscation might be performed on the code-level, the operations on the network level can easily be analyzed.</li> <li>A web-application with a complex authorization scheme is deployed. A new software developer is tasked with extending one of the components. Due to the complexity, they misconfigure the authorization scheme and an attacker is able to exploit IDOR.</li> <li>A web-application with a complex authorization scheme is deployed. A new software developer adds a new plugin to the system. The system makes it hard to do the right thing, and all security configuration must be manually added to the plugin, by-default no security measures are taken. The new developer is not configuring anything thus the new plugin introduces an IDOR into the system.</li> <li>A web-application has many components, all of which are exposed to the public internet. The resulting attack surface is massive. For example, a database management tool (e.g., <code>phpmyadmin</code>) is deployed. After a 0day was found in <code>mysqladmin</code>, the whole database was extracted. During normal use, nobody uses <code>phpmyadmin</code>.</li> </ul>"},{"location":"the-top-10/c4-secure-architecture/#implementation","title":"Implementation","text":"<p>The mantra \"Complexity is the enemy of security\" can be seen throughout this implementation guidance.</p>"},{"location":"the-top-10/c4-secure-architecture/#design-for-clarity-and-transparency","title":"Design for Clarity and Transparency","text":"<p>Architecture should focus upon simplicity: the designed software should be only as complex as the intended user's requirements warrant. Focusing upon simplicity brings multiple benefits for the created software:</p> <ul> <li>It is easier to reason about a simple system. This allows to reason about potential security impacts of changes.</li> <li>Long-term maintenance is aided through the simpler design.</li> <li>The design should focus upon transparency, i.e., the security should not depend upon security-by-obscurity.</li> </ul>"},{"location":"the-top-10/c4-secure-architecture/#make-it-easy-to-do-the-right-thing","title":"Make it easy to do the right thing","text":"<p>Two terms often heard are \"security by design\" and \"security by default\". The former implies, that the software system should be usable in a secure manner while the latter means that the initial configuration of the software system is secure.</p> <p>This implies, that an system administrator has to make an explicit choice to introduce insecure configuration into the system. In contrast, the path of least resistance should always result in a secure system.</p> <p>When focusing upon end-user interactions, this aspect is important for designing user interfaces and flows. When focusing upon developer interactions, developer-facing facilities such as framework, APIs, network APIs should be designed that when using them with default values, only secure operations should occur. Think about this when designing your configuration files too</p>"},{"location":"the-top-10/c4-secure-architecture/#clearly-articulate-whats-trusted-to-do-what-and-ensure-those-relationships-are-enforced","title":"Clearly articulate what's trusted to do what, and ensure those relationships are enforced","text":"<p>Clearly articulate what's trusted to do what, and ensure those relationships are enforced, e.g., trust boundaries delineate blast radius and are enforced by controls, such as firewalls or gateways.</p> <p>Attenuate what's allowed by careful validation at each step. Go deeper with threat modeling mnemonics like stride or methodologies like stride per element.</p>"},{"location":"the-top-10/c4-secure-architecture/#identify-and-minimize-your-exposed-components-attack-surface","title":"Identify and minimize your exposed components (\"attack surface\")","text":"<p>Identify all areas that an attacker can access, review them and try to minimize them: attackers cannot attack what's not there.</p> <p>In addition, exposing only a minimal set of operations makes long-term maintenance easier.</p>"},{"location":"the-top-10/c4-secure-architecture/#use-well-known-architecture-patterns","title":"Use well-known Architecture Patterns","text":"<p>Experts have shared their wisdom about best practices in an easily digestible format called secure architecture patterns. Architecture patterns are reusable and can be applied across multiple applications.</p> <p>For a solution to be considered a pattern, it must have these characteristics:</p> <ul> <li>First, a secure architecture pattern must solve a security problem.</li> <li>Second, a secure architecture pattern must not be tied to a specific vendor or technology.</li> <li>Third, a secure architecture pattern must demonstrate how it mitigates threats.</li> <li>Fourth, a secure architecture pattern must use standardized terms for threats and controls for easy reuse.<sup>^footnote-1</sup></li> </ul> <p>An architecture pattern is a way to solve a problem using a standard solution versus creating a custom solution. A secure architecture pattern is a standard solution that has been reviewed and hardened against known security threats.</p> <p>Implementation:</p> <ol> <li>Identify the problem that requires solving.</li> <li>Consider the catalog of available secure architecture patterns.</li> <li>Choose a secure architecture pattern for the design.</li> <li>Implement the secure architecture pattern.</li> </ol>"},{"location":"the-top-10/c4-secure-architecture/#vulnerabilities-prevented","title":"Vulnerabilities Prevented","text":"<ul> <li>Business Logic Flaws: These patterns can help in structuring the application to avoid complex and often overlooked business logic vulnerabilities.</li> <li>OWASP Top 10 2021-A04 (Insecure Design): Secure architecture patterns directly target the mitigation of risks associated with insecure design, a key concern highlighted by OWASP.</li> </ul>"},{"location":"the-top-10/c4-secure-architecture/#references","title":"References","text":"<ul> <li>https://securitypatterns.io/what-is-a-security-pattern/</li> <li>https://owasp.org/www-pdf-archive/Vanhilst_owasp_140319.pdf</li> <li>https://cheatsheetseries.owasp.org/cheatsheets/Microservices_based_Security_Arch_Doc_Cheat_Sheet.html</li> <li>https://cheatsheetseries.owasp.org/cheatsheets/Secure_Product_Design_Cheat_Sheet.html</li> </ul>"},{"location":"the-top-10/c4-secure-architecture/#tools","title":"Tools","text":"<ul> <li>maybe add some threat modeling tools here?</li> </ul>"},{"location":"the-top-10/c5-secure-by-default/","title":"C5: Secure By Default Configurations","text":""},{"location":"the-top-10/c5-secure-by-default/#description","title":"Description","text":"<p>\u201cSecure-by-Default\u201d means products are resilient against prevalent exploitation techniques out of the box without additional charge.<sup><sup>[2]</sup></sup> The benefit of having an application secure from the start is that it removes the burden away from developers on how to lock a system down, providing them with an already secure product. It reduces the effort required to deploy products in a secure manner and gives greater confidence that they will remain secure over time.</p>"},{"location":"the-top-10/c5-secure-by-default/#threats","title":"Threats","text":"<ul> <li>An attacker could gain unauthorized access by exploiting default, weak, or well-known credentials that haven't been changed from their out-of-the-box state.</li> <li>An attacker could take advantage of overly permissive default settings to access sensitive resources or perform unauthorized actions.</li> <li>An attacker could gather sensitive information by probing unnecessarily enabled features or services that are active by default.</li> <li>An attacker could conduct cross-site scripting (XSS) attacks by exploiting lenient default security headers that don't provide adequate protection against such threats.</li> </ul>"},{"location":"the-top-10/c5-secure-by-default/#implementation","title":"Implementation","text":"<p>In modern cloud applications, when developers build applications, they are also building the infrastructure for their applications, making infrastructure decisions, including security-critical configurations, while writing their code. These are deployed on infrastructure created and configured via code, Infrastructure-as-code (IaC), using configurations applied at the application level ( including web server and database), at container, Function as a Service, or infrastructure level. For example, in the case of web applications, folder permissions need to follow the principle of least privilege to limit resource access rights. When web and mobile applications are deployed in production, the debugging should be disabled.</p> <p>Is it important that when developers put together their infrastructure components, they:</p> <ol> <li>Implement configurations based on the Least privilege principle - for example: ensure that your cloud storage (S3 or other) is configured to be private and accessed by the minimum amount of time</li> <li>Access is denied by default and allowed via an allowed list</li> <li>Use container images that have been scanned for package and component vulnerabilities and pulled from a private container registry</li> <li>Prefer declarative infrastructure configuration over manual configuration activities. On a low-level, utilize Infrastructure-as-Code templates for automated provisioning and configuration of your cloud and on-premises infrastructure. On a high-level utilize Policy-as-Code to enforce policies including privilege assignments. Using a declarative format allows those policies to be managed similar to source code: checked-in into a source code management system, versioned, access-controlled, subject to change management, etc.</li> <li>Traffic encryption - by default or do not implement unencrypted communication channels in the first place</li> </ol>"},{"location":"the-top-10/c5-secure-by-default/#continuous-configurations-verification","title":"Continuous Configurations Verification","text":"<p>As part of software development, a developer needs to ensure that software is configured securely by default at the application level. For example,</p> <ul> <li>The code which defines the infrastructure should follow the principle of least privilege.</li> <li>Configurations and features that aren\u2019t required such as accounts, software, and demo capabilities should be disabled.</li> </ul>"},{"location":"the-top-10/c5-secure-by-default/#vulnerabilities-prevented","title":"Vulnerabilities Prevented","text":"<ul> <li>OWASP Top 10 2021 A05 \u2013 Security Misconfiguration</li> </ul>"},{"location":"the-top-10/c5-secure-by-default/#references","title":"References","text":"<ul> <li>OWASP Cheat Sheet: Infrastructure as Code Security Cheatsheet</li> <li>OWASP ASVS: Application Security Verification Standard V14 Configuration</li> <li>Cloud security guidance - NCSC.GOV.UK</li> </ul>"},{"location":"the-top-10/c5-secure-by-default/#tools","title":"Tools","text":"<ul> <li>Tfsec - open source static analysis for your Terraform templates</li> <li>Terrascan - scan for Infrastructure-as-Code vulnerabilities</li> <li>Checkov - Scan for open-source and Infrastructure-as-Code vulnerabilities</li> <li>Scout Suite is an open source multi-cloud security-auditing tool which currently supports: Amazon Web Services, Microsoft Azure, Google Cloud Platform</li> <li>prowler</li> <li>Cloudmapper</li> <li>Snyk - Scan for open-source, code, container, and Infrastructure-as-Code vulnerabilities</li> <li>Trivy - Scan for open-source, code, container, and Infrastructure-as-Code vulnerabilities</li> <li>KICS - Scan for Infrastructure-as-Code vulnerabilities</li> <li>Kubescape - Scan for Kubernetes vulnerabilities</li> <li>Kyverno - Securing Kubernetes using Policies</li> </ul>"},{"location":"the-top-10/c6-use-secure-dependencies/","title":"C6: Keep your Components Secure","text":""},{"location":"the-top-10/c6-use-secure-dependencies/#description","title":"Description","text":"<p>It is a common practice in software development to leverage libraries and frameworks. Secure libraries and software frameworks with embedded security help software developers prevent security-related design and implementation flaws. A developer writing an application from scratch might not have sufficient knowledge, time, or budget to properly implement or maintain security features. Leveraging security frameworks (both open source and vendor) help accomplish security goals more efficiently and accurately.</p> <p>When possible, the emphasis should be on using the existing secure features of frameworks rather than importing yet another third party libraries, which requires regular updates and maintenance. It is preferable to have developers take advantage of what they're already using instead of forcing yet another library on them.</p> <p>When incorporating third party libraries or frameworks into your software, it is important to consider the following two categories of best practices:</p> <ol> <li>Identify trusted libraries and frameworks to bring into your software.</li> <li>Monitor and update packages to ensure that your software is not vulnerable to the possible security vulnerabilities introduced by the third party components.</li> </ol>"},{"location":"the-top-10/c6-use-secure-dependencies/#threats","title":"Threats","text":"<ul> <li>An attacker could exploit known vulnerabilities in outdated third-party components to gain unauthorized access or execute malicious code.</li> <li>An attacker could conduct supply chain attacks by compromising libraries or frameworks used in the development process, potentially inserting malicious code into the final product.</li> <li>An attacker could extract sensitive information by exploiting insecure configurations in third-party components that haven't been properly hardened.</li> <li>An attacker could launch denial of service attacks by targeting known vulnerabilities in external libraries, potentially disrupting the availability of services.</li> </ul>"},{"location":"the-top-10/c6-use-secure-dependencies/#implementation","title":"Implementation","text":"<p>Below each of these categories are further detailed to help secure your software.</p>"},{"location":"the-top-10/c6-use-secure-dependencies/#best-practices-to-identify-trusted-libraries","title":"Best Practices to Identify Trusted libraries","text":"<p>Below are listed a few criteria you can use to select the next library or framework for your software. This is not an exhaustive list, but is a good start.</p> <ol> <li> <p>Sources: Download recommended security libraries from official sources over secure links and prefer signed packages to reduce the chance of including a modified, malicious component (See A08:2021-Software and Data Integrity Failures).</p> </li> <li> <p>Popularity: Leverage libraries and frameworks used by many applications which have around large communities. Consider data points such as the number of GitHub stars a package\u2019s source code repository has received, and number of downloads from within a package manager.</p> </li> <li> <p>Activity: Ensure that the library/ framework is actively maintained and issues are resolved in a timely fashion.</p> </li> <li> <p>Maturity: Use stable versions . Projects in early stages of development area higher risk to your software .</p> </li> <li> <p>Complexity: A large, complex library with lots of dependencies, is more difficult to incorporate into your software. Also, a high number of dependencies indicates a higher number of future upgrades to ensure all those dependencies are up-to-date and secured.</p> </li> <li> <p>Security: If the package is open source, you can use static application security testing (SAST) or Software Composition Analysis (SCA) to help identify malicious code or security weaknesses, before first including them.</p> </li> </ol>"},{"location":"the-top-10/c6-use-secure-dependencies/#best-practices-to-keep-them-secure","title":"Best Practices to Keep them Secure","text":"<p>New security vulnerabilities are disclosed every day and are published in public databases like the NIST National Vulnerability Database (NVD) which identifies publicly known vulnerabilities using Common Vulnerabilities and Exposures (CVE). Furthermore, exploits made available in public databases allow attackers to automate their attacks. As a result of this, it is important to ensure on a regular basis that your software is free of well-known security vulnerabilities.</p> <ol> <li> <p>Maintain an inventory catalog of all the third party components. It is recommended to automatically create SBOMs (Software-Bill-Of-Materials) from within the build pipeline. A SBOM contains all used third-party dependencies and their versions and can be automatically monitored by a variety of supply chain management tools.</p> </li> <li> <p>Perform continuous checks. Use your SBOMs together with periodic or continuous monitoring tools such as OWASP dependency-track to automatically detect well-known publicly disclosed vulnerabilities.</p> </li> <li> <p>Verify for security early and often - integrate SCA tools in early stages of software development, to gain visibility in the number and criticality of security vulnerabilities of the software and its dependencies from every stage of the software development lifecycle.</p> </li> <li> <p>Proactively update libraries and components. Updating software must be a recurring task that occurs throughout the lifecycle of the application or product, from ideation to retirement.</p> </li> </ol>"},{"location":"the-top-10/c6-use-secure-dependencies/#vulnerabilities-prevented","title":"Vulnerabilities Prevented","text":"<p>Secure frameworks and libraries can help to prevent a wide range of web application vulnerabilities. It is critical to keep these frameworks and libraries up to date as described in using vulnerable and outdated components with known vulnerabilities Top 10 2021.</p>"},{"location":"the-top-10/c6-use-secure-dependencies/#references","title":"References","text":"<ul> <li>OWASP Cheat Sheet: Third Party Javascript Management</li> <li>OpenSSF Scorecard - Security health metrics for Open Source</li> </ul>"},{"location":"the-top-10/c6-use-secure-dependencies/#tools","title":"Tools","text":"<ul> <li>OWASP Dependency-Check \u00ad- to identify project dependencies and check for publicly disclosed vulnerabilities</li> <li>OWASP Dependency-Track - periodically monitor SBOM files for new vulnerabilities</li> <li>Retire.JS scanner for JavaScript libraries</li> <li>Renovate for automated dependencies updates</li> <li>Harbor : an open source registry that secures artifacts with policies and role-based access control</li> </ul>"},{"location":"the-top-10/c7-implement-digital-identity/","title":"C7: Implement Digital Identity","text":""},{"location":"the-top-10/c7-implement-digital-identity/#description","title":"Description","text":"<p>Digital Identity is a unique representation of an individual, organization (or another subject) as they engage in an online transaction. Authentication is the process of verifying that an individual or entity is who they claim to be.</p> <p>Session management is the process by which a server maintains the state of the user\u2019s authentication so that the user may continue to use the system without re-authenticating. Digital identity, authentication, and session management are very complex topics. We're scratching the surface of the topic of Digital Identity here. Ensure that your most capable engineering talent is responsible for maintaining the complexity involved with most Identity solutions. The NIST Special Publication 800-63B: Digital Identity Guidelines (Authentication and Lifecycle Management provide solid guidance on implementing digital identity, authentication, and session management controls. Below are some recommendations for secure implementation to ensure strong digital identity controls are implemented in applications.</p>"},{"location":"the-top-10/c7-implement-digital-identity/#authentication-assurance-levels","title":"Authentication Assurance Levels","text":"<p>NIST 800-63b describes three levels of authentication assurance called Authentication Assurance Level (AAL):</p> <ul> <li>Level 1 : Passwords: The first level, AAL level 1 is reserved for lower-risk applications that do not contain PII or other private data. At AAL level 1 only single-factor authentication is required, typically through the use of a password (something you know). The security of passwords (or credentials in general) is of utmost importance, this includes both secure storage (using a key-derivation function and such) as well as corresponding processes, e.g. having a secure password-reset flow.</li> <li>Level 2 : Multi-Factor Authentication: NIST 800-63b AAL level 2 is reserved for higher-risk applications that contain \"self-asserted PII or other personal information made available online.\" At AAL level 2 multi-factor authentication is required including OTP or other forms of multi-factor implementation.</li> <li>Level 3 : Cryptographic Based Authentication: NIST 800-63b Authentication Assurance Level 3 (AAL3) is required when the impact of compromised systems could lead to personal harm, significant financial loss, harm the public interest or involve civil or criminal violations. AAL3 requires authentication that is \"based on proof of possession of a key through a cryptographic protocol.\" This type of authentication is used to achieve the strongest level of authentication assurance. This is typically done through hardware cryptographic modules. When developing web applications, this will commonly lead to WebAuthn or PassKeys.</li> </ul>"},{"location":"the-top-10/c7-implement-digital-identity/#level-2-multi-factor-authentication","title":"Level 2 : Multi-Factor Authentication","text":"<p>NIST 800-63b AAL level 2 is reserved for higher-risk applications that contain \"self-asserted PII or other personal information made available online.\" At AAL level 2 multi-factor authentication is required including OTP or other forms of multi-factor implementation. Multi-factor authentication (MFA) ensures that users are who they claim to be by requiring them to identify themselves with a combination of:</p> <ul> <li>Something you know \u2013 password or PIN</li> <li>Something you own \u2013 token or phone, when using a phone please use a standard authenticator application heeding standardized protocols such as FIDO2.</li> <li>Something you are \u2013 biometrics, such as a fingerprint Using passwords as a sole factor provides weak security. Multi-factor solutions provide a more robust solution by requiring an attacker to acquire more than one element to authenticate with the service. It is worth noting that biometrics, when employed as a single factor of authentication, are not considered acceptable secrets for digital authentication. They can be obtained online or by taking a picture of someone with a camera phone (e.g., facial images) with or without their knowledge, lifted from objects someone touches (e.g., latent fingerprints), or captured with high-resolution images (e.g., iris patterns). Biometrics must be used only as part of multi-factor authentication with a physical authenticator (something you own). For example, accessing a multi-factor one-time password (OTP) device will generate a one-time password that the user manually enters for the verifier.</li> </ul>"},{"location":"the-top-10/c7-implement-digital-identity/#level-3-cryptographic-based-authentication","title":"Level 3 : Cryptographic Based Authentication","text":"<p>NIST 800-63b Authentication Assurance Level 3 (AAL3) is required when the impact of compromised systems could lead to personal harm, significant financial loss, harm the public interest or involve civil or criminal violations. AAL3 requires authentication that is \"based on proof of possession of a key through a cryptographic protocol.\" This type of authentication is used to achieve the strongest level of authentication assurance. This is typically done through hardware cryptographic modules. When developing web applications, this will commonly lead to WebAuthn or PassKeys.</p>"},{"location":"the-top-10/c7-implement-digital-identity/#session-management-client-vs-server-side-sessions","title":"Session Management: client- vs server-side sessions","text":"<p>HTTP on its own is a session-less protocol: no data is shared between requests. When you look at how we are using the web, this is clearly not what is user-visible as for example you log into a website and stay logged in during subsequent requests. This is possible as session-management has been implemented on top of HTTP. Once the initial successful user authentication has taken place, an application may choose to track and maintain this authentication state for a limited amount of time. This will allow the user to continue using the application without having to keep re-authentication with each request. Tracking of this user state is called Session Management. Session-Management can be roughly categorized in client- and server-side session management. In the former, all session data is stored within the client and transmitted on each request to the server. The latter stores session-specific data on the server, e.g., in a database, and only transmits an identifier to the client. The client then submits only the session-identifier on each request and the server retrieves the session-data from the server-side storage.</p> <p>From a security-perspective server-side sessions have multiple benefits:</p> <ul> <li>Data is not directly stored on the client: this can be problematic, e.g., when handling sensitive data. In addition, client-side session-management solutions must ensure that client-side data has not been tampered with.</li> <li>Less data is transmitted between client and server (which is not as relevant as network bandwidth has increased)</li> <li>Server-side session-management allows for session-invalidation, e.g., a user can logout all of their sessions By default, always use server-side session management..</li> </ul>"},{"location":"the-top-10/c7-implement-digital-identity/#threats","title":"Threats","text":"<ul> <li>An attacker could hijack user sessions by stealing or predicting session tokens, potentially gaining unauthorized access to authenticated user accounts.</li> <li>An attacker could execute session fixation attacks by exploiting weak session management, forcing a user to use a known session identifier.</li> <li>An attacker could perform cross-site request forgery (CSRF) attacks on authenticated sessions, tricking users into unknowingly executing unwanted actions on a web application.</li> </ul>"},{"location":"the-top-10/c7-implement-digital-identity/#implementation","title":"Implementation","text":""},{"location":"the-top-10/c7-implement-digital-identity/#when-using-passwords","title":"When using Passwords","text":""},{"location":"the-top-10/c7-implement-digital-identity/#password-requirements","title":"Password Requirements","text":"<p>Passwords should comply with the following requirements at the very least:</p> <ul> <li>be at least 8 characters in length if multi-factor authentication (MFA) and other controls are also used. If MFA is not possible, this should be increased to at least 10 characters</li> <li>all printing ASCII characters as well as the space character should be acceptable in memorized secrets</li> <li>encourage the use of long passwords and passphrases</li> <li>remove complexity requirements as these have been found to be of limited effectiveness. Instead, the adoption of MFA or longer password lengths is recommended</li> <li>ensure that passwords used are not commonly used passwords that have been already been leaked in a previous compromise. You may choose to block the top 1000 or 10000 most common passwords which meet the above length requirements and are found in compromised password lists. The following link contains the most commonly found passwords: https://github.com/danielmiessler/SecLists/tree/master/Passwords</li> <li>Enforce password rotation, to avoid potential breaches due to the fact the same password is being used for a very long period of time</li> </ul>"},{"location":"the-top-10/c7-implement-digital-identity/#implement-secure-password-recovery-mechanism","title":"Implement Secure Password Recovery Mechanism","text":"<p>It is common for an application to have a mechanism for a user to gain access to their account in the event they forget their password. A good design workflow for a password recovery feature will use multi-factor authentication elements. For example, it may ask a security question - something they know, and then send a generated token to a device - something they own. Please see the Forgot_Password_Cheat_Sheet and Choosing_and_Using_Security_Questions_Cheat_Sheet for further details.</p>"},{"location":"the-top-10/c7-implement-digital-identity/#implement-secure-password-storage","title":"Implement Secure Password Storage","text":"<p>In order to provide strong authentication controls, an application must securely store user credentials. Furthermore, cryptographic controls should be in place such that if a credential (e.g., a password) is compromised, the attacker does not immediately have access to this information. Please see the OWASP Password Storage Cheat Sheet for further details.</p>"},{"location":"the-top-10/c7-implement-digital-identity/#server-side-session-management","title":"Server-Side Session-Management","text":"<p>Typically server-side session management is implemented with HTTP cookies which are used to store a session-identifier. When a new session is requested, the server generates a new session-identifier and transmits it to the client (browser). On each subsequent request, the session-identifier is transmitted from the client to the server, and the server uses this session-identifier to lookup session-data within a server-side database.</p>"},{"location":"the-top-10/c7-implement-digital-identity/#session-generation-and-expiration","title":"Session Generation and Expiration","text":"<p>User state is tracked in a session. This session is typically stored on the server for traditional web based session management. A session identifier is then given to the user so the user can identify which server-side session contains the correct user data. The client only needs to maintain this session identifier, which also keeps sensitive server-side session data off of the client. Here are a few controls to consider when building or implementing session management solutions:</p> <ul> <li>Ensure that the session id is long, unique and random, i.e., is of high entropy.</li> <li>The application should generate a new session during authentication and re-authentication.</li> <li>The application should implement an idle timeout after a period of inactivity and an absolute maximum lifetime for each session, after which users must re-authenticate. The length of the timeouts should be inversely proportional with the value of the data protected.</li> </ul> <p>Please see the Session Management Cheat Sheet further details. ASVS Section 3 covers additional session management requirements.</p>"},{"location":"the-top-10/c7-implement-digital-identity/#client-side-session-management","title":"Client-Side Session-Management","text":"<p>Server-side sessions can be limiting for some forms of authentication. \"Stateless services\" allow for client side management of session data for performance purposes so the server has less of a burden to store user sessions. These \"stateless\" applications typically generate a short-lived access token containing all of the current user\u2019s access permissions which is then included in all subsequent requests. Cryptography must be employed so that the client cannot alter the permissions stored within the token. When a client requests a server operation, the client includes the retrieved access token and the server verifies that the token has not been tampered with and extracts the permissions from the token. These permissions are then used for subsequent permission checks.</p>"},{"location":"the-top-10/c7-implement-digital-identity/#jwt-json-web-tokens","title":"JWT (JSON Web Tokens)","text":"<p>JSON Web Token (JWT) is an open standard (RFC 7519) that defines a compact and self-contained way for securely transmitting information between parties as a JSON object. This information can be verified and trusted as long as it is digitally signed by a trusted authority. A JWT token is created during authentication and is verified by the server (or servers) before any processing. However, JWTs are often not saved by the server after initial creation. JWTs are typically created and then handed to a client without being saved by the server in any way. The integrity of the token is maintained through the use of digital signatures so a server can later verify that the JWT is still valid and was not tampered with since its creation. This approach is both stateless and portable in the way that client and server technologies can be different yet still interact. Please note, that if you are using JWTs you have to make sure that the returned JWT is actually using one of the signing algorithms that you are using. Otherwise, an attacker could try to create a JWT signed with the NULL algorithm, use a MAC-vs-Signature confusion attack, or provide a custom JWS key for signing. When you are issuing JWTs, make double-sure that you are using a secure private key for signing the JWTs: each output JWT gives an attacker all information needed to perform an offline cracking attack, so you should rotate keys frequently too.</p>"},{"location":"the-top-10/c7-implement-digital-identity/#browser-cookies","title":"Browser Cookies","text":"<p>Browser cookies are a common method for web applications to store session identifiers for web applications implementing standard session management techniques. Here are some defenses to consider when using browser cookies.</p> <ul> <li>When browser cookies are used as the mechanism for tracking the session of an authenticated user, these should be accessible to a minimum set of domains and paths and should be tagged to expire at, or soon after, the session\u2019s validity period.</li> <li>Please be aware that not explicitly stating a domain during cookie setup will use the current origin as domain. This is a sensible default.</li> <li>Please be aware, that while stating a path during cookie setup will limit the browser to only submit the cookie if the request lies within the stated path. This protects the cookie of one application from being accessed by another application within a different path on the same server. This protection is brittle: if the \u201cother\u201d application has an XSS vulnerability and the attacker can introduce iframes, the \u201cpath\u201d protection can be circumvented.</li> <li>The \u2018secure\u2019 flag should be set to ensure the transfer is done via secure channel only (TLS).</li> <li>HttpOnly flag should be set to prevent the cookie from being accessed via JavaScript.</li> <li>Adding \u201cSameSite\u201d attributes to cookies prevents some modern browsers from sending cookies with cross-site requests and provides protection against cross-site request forgery and information leakage attacks.</li> </ul>"},{"location":"the-top-10/c7-implement-digital-identity/#vulnerabilities-prevented","title":"Vulnerabilities Prevented","text":"<ul> <li>A07:2021 \u2013 Identification and Authentication Failures</li> <li>OWASP Mobile Top 10 2016-M4- Insecure Authentication</li> </ul>"},{"location":"the-top-10/c7-implement-digital-identity/#references","title":"References","text":"<ul> <li>OWASP Cheat Sheet: Authentication</li> <li>OWASP Cheat Sheet: Password Storage</li> <li>OWASP Cheat Sheet: Forgot Password</li> <li>OWASP Cheat Sheet: Choosing and Using Security Questions</li> <li>OWASP Cheat Sheet: Session Management</li> <li>NIST Special Publication 800-63 Revision 3 - Digital Identity Guidelines</li> </ul>"},{"location":"the-top-10/c7-implement-digital-identity/#tools","title":"Tools","text":"<ul> <li>Daniel Miessler: Most commonly found passwords</li> </ul>"},{"location":"the-top-10/c8-help-the-browser-defend-the-user/","title":"C8: Leverage Browser Security Features","text":""},{"location":"the-top-10/c8-help-the-browser-defend-the-user/#description","title":"Description","text":"<p>Browsers are the gateway to the web for most users. As such, it's critical to employ robust security measures to protect the user from various threats. This section outlines the techniques and policies that can be implemented to bolster browser security.</p> <p>While we are currently focusing upon traditional web browsers, please note that there is a diverse world of other client programs out there, ranging from API clients to smart-TVs.</p>"},{"location":"the-top-10/c8-help-the-browser-defend-the-user/#opportunistic-security-and-browser-support","title":"Opportunistic Security and Browser-Support","text":"<p>Instructing the web browser to enforce security measures is always opportunistic: the web application cannot verify that the browser heeds the guidance given and thus these security measures should always be seen as additional (and optional) Hardening Measures that further complicate an attacker\u2019s life.</p> <p>In addition, web browsers must actually support the security guidance offered by web applications. The level of support differs between different browsers and their versions. Web sites such as https://caniuse.com can be used to check which web browser (versions) support which features. The supported security features can change over time, e.g., the X-XSS-Protection header has been removed from all major browsers; the browsers\u2019 default behavior can change over time as seen with Referrer-Policy; and even the semantics of existing headers can change over time as seen with X-Content-Type-Options.</p> <p>While the changing browser feature set can be problematic, typically newer browser provide more security features. They sometimes even enable them by default. Explicitly setting those security headers can unify the different browsers\u2019 behaviors and thus reduces maintenance effort.</p> <p>A fully compromised browser might not heed security guidance but if an adversary was able to take full control of a browser, they already have far more damaging attack paths than just ignoring security guidance.</p>"},{"location":"the-top-10/c8-help-the-browser-defend-the-user/#threats","title":"Threats","text":"<ul> <li>An attacker could execute cross-site scripting (XSS) attacks by exploiting inadequate Content Security Policy settings, potentially injecting malicious scripts into web pages.</li> <li>An attacker could perform clickjacking attacks by taking advantage of missing X-Frame-Options headers, potentially tricking users into unintended interactions with disguised web elements.</li> <li>An attacker could gather sensitive information through <code>Referer</code> HTTP headers when proper Referrer-Policy is not set, potentially exposing private data or user activities.</li> <li>An attacker could exploit MIME type confusion vulnerabilities in the absence of X-Content-Type-Options headers, potentially executing malicious scripts disguised as benign file types.</li> <li>An attacker could hijack user sessions by exploiting insecure cookie settings, potentially gaining unauthorized access to user accounts.</li> <li>An attacker could perform DNS rebinding attacks in the absence of proper DNS pinning, potentially bypassing same-origin policy restrictions.</li> <li>An attacker could exploit cross-origin resource sharing (CORS) misconfigurations to gain unauthorized access to resources, potentially compromising data confidentiality and integrity.</li> </ul>"},{"location":"the-top-10/c8-help-the-browser-defend-the-user/#implementation","title":"Implementation","text":"<p>Typically, there are two (Security Header specific) ways that web applications can use to instruct web browsers about security: HTTP headers and HTML tags.</p> <p>The behavior taken if a security directive is given more than one time is security header specific. For example, a duplicate X-Frame-Options header will disable its protection while a duplicate Content-Security-Policy header will lead to a stricter policy thus tightening its security. The following is a non-exhaustive list of potential Hardening mechanisms:</p>"},{"location":"the-top-10/c8-help-the-browser-defend-the-user/#configure-the-browser-to-prevent-information-disclosure","title":"Configure the Browser to prevent Information Disclosure","text":"<p>Information disclosure occurs if the browser transmits information over unencrypted channels (HTTP instead of HTTPS) or sends our too much information in the first place (e.g., through the Referer-Header). The following mechanisms reduce the possibility of information disclosure:</p> <ul> <li>HTTP Strict Transport Security (HSTS): Ensures that browsers only connect to your website over HTTPS, preventing SSL stripping attacks.</li> <li>Content Security Policy (CSP): CSP policies can instruct the browser to automatically upgrade HTTP connections to HTTPS. In addition directives such as the form-src directive can be used to prevent forms from transmitting data to external sites.</li> <li>Referrer-Policy: when navigating between pages, the browser\u2019s HTTP request includes the current URL within the outgoing request. This URL can include sensitive information. Using Referrer-Policy, a web-site can unify the browser\u2019s behavior and select which information should be transmitted between web sites.</li> <li>The cookie\u2019s secure flag: while not a HTTP header, this security flag is related to information disclosure. If set, the web browser will not transmit a cookie over unencrypted HTTP transports.</li> </ul>"},{"location":"the-top-10/c8-help-the-browser-defend-the-user/#reduce-the-potential-impact-of-xss","title":"Reduce the potential Impact of XSS","text":"<p>Javascript based XSS attacks have been very common for decades. To reduce the potential impact of vulnerabilities, browsers offer rich defensive mechanisms that should reduce the potential impact of XSS attacks:</p> <ul> <li>Content Security Policy (CSP): CSP is a powerful tool that helps prevent a wide range of attacks including Cross-Site Scripting (XSS) and data injection. Strict CSP policies can effectively disable inline JavaScript and style, making it much harder for attackers to inject malicious content. Host Allowlist CSP: Blocking all third-party JavaScript can significantly reduce the attack surface and prevent the exploitation of vulnerabilities in third-party libraries. Strict CSP: A CSP utilizing nonces or hashes in the 'script-src' directive (often referred to as \"strict CSP\") provides a robust mitigation against XSS vulnerabilities. Optionally, the use of the CSP 'strict-dynamic' keyword can help to streamline the implementation of a strict CSP and to ensure compatibility with third-party JavaScript libraries when required.     Trusted Types: This is a browser API that helps prevent DOM-based cross-site scripting vulnerabilities by ensuring only secure data types can be inserted into the DOM.</li> <li>The cookie\u2019s httpOnly flag: while not a HTTP header, setting this flag prevents Javascript from accessing this cookie and should be done esp. For Session cookies.</li> </ul>"},{"location":"the-top-10/c8-help-the-browser-defend-the-user/#prevent-clickjacking","title":"Prevent Clickjacking","text":"<p>Clickjacking, also known as UI-redress attacks, try to confuse users by overlaying a malicious site on top of a benign one. The user believes to interact with the benign one while in reality they are interacting with the malicious one.</p> <ul> <li>X-Frame-Options (XFO): Prevents clickjacking attacks by ensuring your content is not embedded into other sites. This header is finicky to use, e.g., when used twice it is disabled.</li> <li>Content Security Policy (CSP): the different frame-* directives allow for fine-grained control of which sites are allowed to include the current website as well as which other sites can be included within the current website.</li> </ul>"},{"location":"the-top-10/c8-help-the-browser-defend-the-user/#control-the-browsers-advanced-capabilities","title":"Control the Browser\u2019s Advanced Capabilities","text":"<p>Modern browsers do not only display HTML code but are used to interface with multiple system components such as WebCams, Microphones, USB Devices, etc. While many websites do not utilize those features, attackers can abuse those.</p> <ul> <li>Permission Policy: through a permission policy a web-site can instruct the browser that the defined features will not be used by the web-site. For example, a web-site can state that it will never capture user audio. Even if an attacker is able to inject malicious code, they can thus not instruct the web-browser to capture audio.</li> </ul>"},{"location":"the-top-10/c8-help-the-browser-defend-the-user/#prevent-csrf-attacks","title":"Prevent CSRF Attacks","text":"<p>CSRF attacks abuse an existing trust relationship between the web browser and web sites.</p> <ul> <li>Same-Origin Cookies: Marking cookies as SameSite can mitigate the risk of cross-origin information leakage, as well as provide some protection against cross-site request forgery attacks.</li> <li>Fetch Metadata Request Headers: Checking Fetch Metadata request headers on the server-side allows deploying a strong defense-in-depth mechanism\u2014a Resource Isolation Policy\u2014to protect your application against common cross-origin attacks like CSRF.</li> </ul>"},{"location":"the-top-10/c8-help-the-browser-defend-the-user/#vulnerabilities-prevented","title":"Vulnerabilities Prevented","text":"<p>Implementing these browser defenses can help mitigate a range of vulnerabilities, including but not limited to:</p> <ul> <li>Cross-Site Scripting (XSS)</li> <li>Cross-Site Request Forgery (CSRF)</li> <li>Clickjacking</li> <li>Data Theft through insecure transmission</li> <li>Session Hijacking</li> <li>Abusing unintended browser hardware access (microphone, cameras, etc.)</li> </ul>"},{"location":"the-top-10/c8-help-the-browser-defend-the-user/#tools","title":"Tools","text":"<ul> <li>Web Check</li> <li>Security Headers</li> <li>Mozilla Observatory</li> <li>CSP Evaluator</li> </ul>"},{"location":"the-top-10/c8-help-the-browser-defend-the-user/#references","title":"References","text":"<ul> <li>Content Security Policy (CSP)</li> <li>Strict Content Security Policy</li> <li>Trusted Types</li> <li>OWASP Secure Headers Project</li> <li>Security Headers Quick Reference</li> <li>Fetch Metadata Request Headers</li> <li>Fetch Metadata Resource Isolation Policy</li> <li>Caniuse.com</li> </ul>"},{"location":"the-top-10/c9-security-logging-and-monitoring/","title":"C9: Implement Security Logging and Monitoring","text":""},{"location":"the-top-10/c9-security-logging-and-monitoring/#description","title":"Description","text":"<p>Logging is a concept that most developers already use for debugging and diagnostic purposes. Security logging is an equally basic concept: to log security information during the runtime operation of an application. Monitoring is the live review of application and security logs using various forms of automation. The same tools and patterns can be used for operations, debugging and security purposes.</p>"},{"location":"the-top-10/c9-security-logging-and-monitoring/#benefits-of-security-logging","title":"Benefits of Security Logging","text":"<p>Security logging can be used for:</p> <ol> <li>Feeding intrusion detection systems</li> <li>Forensic analysis and investigations</li> <li>Satisfying regulatory compliance requirements</li> </ol>"},{"location":"the-top-10/c9-security-logging-and-monitoring/#logging-for-intrusion-detection-and-response","title":"Logging for Intrusion Detection and Response","text":"<p>Use logging to identify activity that indicates that a user is behaving maliciously. Potentially malicious activity to log includes:</p> <ul> <li>Submitted data that is outside of an expected numeric range.</li> <li>Submitted data that involves changes to data that should not be modifiable (select list, checkbox or other limited entry component).</li> <li>Requests that violate server-side access control rules.</li> <li>A more comprehensive list of possible detection points is available here. When your application encounters such activity, your application should at the very least log the activity and mark it as a high severity issue. Ideally, your application should also respond to a possible identified attack, by for example invalidating the user\u2019s session and locking the user\u2019s account. The response mechanisms allow the software to react in realtime to possible identified attacks.</li> </ul>"},{"location":"the-top-10/c9-security-logging-and-monitoring/#secure-logging-design","title":"Secure Logging Design","text":"<p>Logging solutions must be built and managed in a secure way. Secure Logging design may include the following:</p> <ul> <li>Allow expected characters only and/or encode the input based on the target to prevent log injection attacks. The preferred approach would be that the logging solution performs input escaping instead of dropping data: otherwise the logging solution might discard data which would be needed for a later analysis.</li> <li>Do not log sensitive information. For example, do not log password, session ID, credit cards, or social security numbers.</li> <li>Protect log integrity. An attacker may attempt to tamper with the logs. Therefore, the permission of log files and log changes audit should be considered.</li> <li>Forward logs from distributed systems to a central, secure logging service. This will ensure log data cannot be lost if one node is compromised. This also allows for centralized or even automated monitoring.</li> </ul>"},{"location":"the-top-10/c9-security-logging-and-monitoring/#threats","title":"Threats","text":"<ul> <li>An attacker could perform log injection attacks by manipulating log entries, potentially inserting malicious data or commands into log files.</li> <li>An attacker could gain unauthorized access to sensitive information through overly verbose logging practices that inadvertently capture and store confidential data.</li> <li>An attacker could engage in log tampering to cover tracks of malicious activities, potentially erasing or modifying evidence of their intrusion.</li> <li>An attacker could launch denial of service attacks by overwhelming logging systems with a flood of data, potentially disrupting normal system operations or obscuring other malicious actions.</li> <li>An attacker could gain unauthorized access to log files due to improper access controls, potentially exposing sensitive system information or user data.</li> <li>An attacker could engage in log forging to create false audit trails, potentially misleading investigators or framing innocent parties for malicious activities.</li> <li>An attacker could take advantage of insufficient logging practices to conduct malicious activities without detection, potentially prolonging their unauthorized access to systems.</li> <li>An attacker could exploit log file race conditions in multi-threaded applications, potentially corrupting log data or gaining unauthorized access to sensitive information.</li> <li>An attacker could perform replay attacks using information gleaned from logs, potentially reusing captured data to impersonate legitimate users or repeat authenticated actions.</li> </ul>"},{"location":"the-top-10/c9-security-logging-and-monitoring/#implementation","title":"Implementation","text":"<p>The following is a list of security logging implementation best practices.</p> <ul> <li>Follow a common logging format and approach within the system and across systems of an organization. An example of a common logging framework is the Apache Logging Services which helps provide logging consistency between Java, PHP, .NET, and C++ applications.</li> <li>Do not log too much or too little. For example, make sure to always log the timestamp and identifying information including the source IP and user-id, but be careful not to log private (such as username) or confidential data (such as business data) unless extra care is taken.</li> <li>Pay close attention to time syncing across nodes to ensure that timestamps are consistent.</li> </ul>"},{"location":"the-top-10/c9-security-logging-and-monitoring/#vulnerabilities-prevented","title":"Vulnerabilities Prevented","text":"<ul> <li>Brute-Force Attacks against Login-Mechanisms</li> </ul>"},{"location":"the-top-10/c9-security-logging-and-monitoring/#references","title":"References","text":"<ul> <li>Logging Cheat Sheet</li> <li>OWASP Logging Guide</li> </ul>"},{"location":"the-top-10/c9-security-logging-and-monitoring/#tools","title":"Tools","text":""},{"location":"the-top-10/introduction/","title":"Introduction","text":"<p>For years, developers have suffered through introducing the same security issues into the things they build. The most common issues, which have existed for decades, have been documented by the OWASP Top Ten. Many of the issues in the earliest version still exist in some form today. A mechanism is needed to counter these challenges, and that mechanism is proactive controls.</p> <p>Proactive controls are a catalog of better practices, a set of items developers can embrace and implement in their code bases to avoid many common security issues. Proactive controls provide positive patterns to implement solutions considered secure by design.</p> <p>Imagine working on a web-based software, releasing a new version, and then getting reports that it contained a security vulnerability that is now being exploited in the wild. You are now forced to act reactively: analyzing the vulnerability, fixing it, creating a new software release, and getting it to your users. All this is tedious and a bit awkward, esp. When the security vulnerability was critical.</p> <p>Proactive controls prevent this by focusing on the development itself. Their idea is to prevent common vulnerabilities during an application's inception so that those tedious and embarrassing bug fixes can be avoided altogether. Common knowledge is that a proactive approach will save resources and money in the long run.</p> <p>The OWASP Top 10 Proactive Controls 2024 is a list of security techniques every software architect and developer should know and heed. The main goal of this document is to provide concrete, practical guidance that helps developers build secure software. These techniques should be applied proactively at the early stages of software development to ensure maximum effectiveness.</p> <p>Please note that while complying with best proactive practices will reduce the chance of a vulnerability being in your code, there is no guarantee that code is security-bug free. And that\u2019s okay: You have to break an egg to make an omelet \u2014 the only way of not introducing any security bugs is not to code at all. We accept that while striving to prevent as many security issues as possible.</p>"},{"location":"the-top-10/introduction/#how-this-list-was-created","title":"How this List Was Created","text":"<p>This list was originally created by the current project leads with contributions from several volunteers. The document was then shared globally so even anonymous suggestions could be considered. Hundreds of changes were accepted from this open community process.</p>"},{"location":"the-top-10/introduction/#security-controls","title":"Security Controls","text":"<p>The description of each control has the same structure. The control itself has an unique name preceeded by the control number: Cx: Control Name, e.g., C1: Implement Access Control.</p> <p>Each control has the same sections:</p> <ul> <li>Description: A detailed description of the control including some best practices to consider.</li> <li>Threat(s): A threat or threats that this control counters.</li> <li>Implementation: Best practices and examples to illustrate how to implement each control.</li> <li>Vulnerabilities Prevented: List of prevented vulnerabilities or risks addressed (OWASP TOP 10 Risk, CWE, etc.)</li> <li>References: List of references for further study (OWASP Cheat sheet, Security Hardening Guidelines, etc.)</li> <li>Tools: Set of tools/projects to easily introduce/integrate security controls into your software.</li> </ul>"}]}
\ No newline at end of file
diff --git a/sitemap.xml b/sitemap.xml
index fbfda96..49f5498 100644
--- a/sitemap.xml
+++ b/sitemap.xml
@@ -2,78 +2,150 @@
 <urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
     <url>
          <loc>https://top10proactive.owasp.org/</loc>
-         <lastmod>2024-09-05</lastmod>
+         <lastmod>2024-09-10</lastmod>
     </url>
     <url>
          <loc>https://top10proactive.owasp.org/final-word/</loc>
-         <lastmod>2024-09-05</lastmod>
+         <lastmod>2024-09-10</lastmod>
     </url>
     <url>
          <loc>https://top10proactive.owasp.org/about-top-10/contributors/</loc>
-         <lastmod>2024-09-05</lastmod>
+         <lastmod>2024-09-10</lastmod>
     </url>
     <url>
          <loc>https://top10proactive.owasp.org/about-top-10/in-the-news/</loc>
-         <lastmod>2024-09-05</lastmod>
+         <lastmod>2024-09-10</lastmod>
     </url>
     <url>
          <loc>https://top10proactive.owasp.org/about-top-10/old-versions-and-translations/</loc>
-         <lastmod>2024-09-05</lastmod>
+         <lastmod>2024-09-10</lastmod>
+    </url>
+    <url>
+         <loc>https://top10proactive.owasp.org/archive/2014/</loc>
+         <lastmod>2024-09-10</lastmod>
+    </url>
+    <url>
+         <loc>https://top10proactive.owasp.org/archive/2016/</loc>
+         <lastmod>2024-09-10</lastmod>
+    </url>
+    <url>
+         <loc>https://top10proactive.owasp.org/archive/2018/0x01-about-owasp/</loc>
+         <lastmod>2024-09-10</lastmod>
+    </url>
+    <url>
+         <loc>https://top10proactive.owasp.org/archive/2018/0x02-about-project/</loc>
+         <lastmod>2024-09-10</lastmod>
+    </url>
+    <url>
+         <loc>https://top10proactive.owasp.org/archive/2018/0x03-about-structure/</loc>
+         <lastmod>2024-09-10</lastmod>
+    </url>
+    <url>
+         <loc>https://top10proactive.owasp.org/archive/2018/0x04-introduction/</loc>
+         <lastmod>2024-09-10</lastmod>
+    </url>
+    <url>
+         <loc>https://top10proactive.owasp.org/archive/2018/c1-security-requirements/</loc>
+         <lastmod>2024-09-10</lastmod>
+    </url>
+    <url>
+         <loc>https://top10proactive.owasp.org/archive/2018/c10-errors-exceptions/</loc>
+         <lastmod>2024-09-10</lastmod>
+    </url>
+    <url>
+         <loc>https://top10proactive.owasp.org/archive/2018/c2-leverage-security-frameworks-libraries/</loc>
+         <lastmod>2024-09-10</lastmod>
+    </url>
+    <url>
+         <loc>https://top10proactive.owasp.org/archive/2018/c3-secure-database/</loc>
+         <lastmod>2024-09-10</lastmod>
+    </url>
+    <url>
+         <loc>https://top10proactive.owasp.org/archive/2018/c4-encode-escape-data/</loc>
+         <lastmod>2024-09-10</lastmod>
+    </url>
+    <url>
+         <loc>https://top10proactive.owasp.org/archive/2018/c5-validate-inputs/</loc>
+         <lastmod>2024-09-10</lastmod>
+    </url>
+    <url>
+         <loc>https://top10proactive.owasp.org/archive/2018/c6-digital-identity/</loc>
+         <lastmod>2024-09-10</lastmod>
+    </url>
+    <url>
+         <loc>https://top10proactive.owasp.org/archive/2018/c7-enforce-access-controls/</loc>
+         <lastmod>2024-09-10</lastmod>
+    </url>
+    <url>
+         <loc>https://top10proactive.owasp.org/archive/2018/c8-protect-data-everywhere/</loc>
+         <lastmod>2024-09-10</lastmod>
+    </url>
+    <url>
+         <loc>https://top10proactive.owasp.org/archive/2018/c9-security-logging/</loc>
+         <lastmod>2024-09-10</lastmod>
+    </url>
+    <url>
+         <loc>https://top10proactive.owasp.org/archive/2018/final-word/</loc>
+         <lastmod>2024-09-10</lastmod>
+    </url>
+    <url>
+         <loc>https://top10proactive.owasp.org/archive/2018/info/</loc>
+         <lastmod>2024-09-10</lastmod>
     </url>
     <url>
          <loc>https://top10proactive.owasp.org/introduction/about-owasp/</loc>
-         <lastmod>2024-09-05</lastmod>
+         <lastmod>2024-09-10</lastmod>
     </url>
     <url>
          <loc>https://top10proactive.owasp.org/introduction/contributing/</loc>
-         <lastmod>2024-09-05</lastmod>
+         <lastmod>2024-09-10</lastmod>
     </url>
     <url>
          <loc>https://top10proactive.owasp.org/introduction/related-owasp-projects/</loc>
-         <lastmod>2024-09-05</lastmod>
+         <lastmod>2024-09-10</lastmod>
     </url>
     <url>
          <loc>https://top10proactive.owasp.org/the-top-10/c1-accesscontrol/</loc>
-         <lastmod>2024-09-05</lastmod>
+         <lastmod>2024-09-10</lastmod>
     </url>
     <url>
          <loc>https://top10proactive.owasp.org/the-top-10/c10-stop-server-side-request-forgery/</loc>
-         <lastmod>2024-09-05</lastmod>
+         <lastmod>2024-09-10</lastmod>
     </url>
     <url>
          <loc>https://top10proactive.owasp.org/the-top-10/c2-crypto/</loc>
-         <lastmod>2024-09-05</lastmod>
+         <lastmod>2024-09-10</lastmod>
     </url>
     <url>
          <loc>https://top10proactive.owasp.org/the-top-10/c3-validate-input-and-handle-exceptions/</loc>
-         <lastmod>2024-09-05</lastmod>
+         <lastmod>2024-09-10</lastmod>
     </url>
     <url>
          <loc>https://top10proactive.owasp.org/the-top-10/c4-secure-architecture/</loc>
-         <lastmod>2024-09-05</lastmod>
+         <lastmod>2024-09-10</lastmod>
     </url>
     <url>
          <loc>https://top10proactive.owasp.org/the-top-10/c5-secure-by-default/</loc>
-         <lastmod>2024-09-05</lastmod>
+         <lastmod>2024-09-10</lastmod>
     </url>
     <url>
          <loc>https://top10proactive.owasp.org/the-top-10/c6-use-secure-dependencies/</loc>
-         <lastmod>2024-09-05</lastmod>
+         <lastmod>2024-09-10</lastmod>
     </url>
     <url>
          <loc>https://top10proactive.owasp.org/the-top-10/c7-implement-digital-identity/</loc>
-         <lastmod>2024-09-05</lastmod>
+         <lastmod>2024-09-10</lastmod>
     </url>
     <url>
          <loc>https://top10proactive.owasp.org/the-top-10/c8-help-the-browser-defend-the-user/</loc>
-         <lastmod>2024-09-05</lastmod>
+         <lastmod>2024-09-10</lastmod>
     </url>
     <url>
          <loc>https://top10proactive.owasp.org/the-top-10/c9-security-logging-and-monitoring/</loc>
-         <lastmod>2024-09-05</lastmod>
+         <lastmod>2024-09-10</lastmod>
     </url>
     <url>
          <loc>https://top10proactive.owasp.org/the-top-10/introduction/</loc>
-         <lastmod>2024-09-05</lastmod>
+         <lastmod>2024-09-10</lastmod>
     </url>
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@@ -96,9 +96,7 @@
     
       
 
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@@ -219,6 +217,98 @@
       
         
           
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+<nav class="md-tabs" aria-label="Tabs" data-md-component="tabs">
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+    <ul class="md-tabs__list">
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+  Top 10 2014
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       <main class="md-main" data-md-component="main">
@@ -232,8 +322,10 @@
                     
 
 
+  
+
 
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+<nav class="md-nav md-nav--primary md-nav--lifted" aria-label="Navigation" data-md-level="0">
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+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1" checked>
         
           
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           <label class="md-nav__title" for="__nav_1">
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+        
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+          <label class="md-nav__title" for="__nav_1_1">
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           </label>
@@ -498,9 +642,10 @@
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+      <a href="../../final-word/" class="md-nav__link">
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+          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="0">
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+          <label class="md-nav__title" for="__nav_2">
+            <span class="md-nav__icon md-icon"></span>
+            Top 10 2018
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
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     <li class="md-nav__item">
-      <a href="../../final-word/" class="md-nav__link">
+      <a href="../../archive/2018/0x01-about-owasp/" class="md-nav__link">
         
   
   <span class="md-ellipsis">
-    Final Word
+    About OWASP
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x02-about-project/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Project
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x03-about-structure/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Structure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x04-introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c1-security-requirements/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c2-leverage-security-frameworks-libraries/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c3-secure-database/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c4-encode-escape-data/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c5-validate-inputs/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c6-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c7-enforce-access-controls/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c8-protect-data-everywhere/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Protect Data Everywhere
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c9-security-logging/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c10-errors-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Handle All Errors and Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2016/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2016
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2014/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2014
   </span>
   
 
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     </div>
     
     
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+    <script id="__config" type="application/json">{"base": "../..", "features": ["navigation.sections", "navigation.tracking", "navigation.path", "navigation.tabs", "navigation.top", "search.suggest", "search.highlight", "content.tabs.link", "content.code.annotation", "content.code.copy"], "search": "../../assets/javascripts/workers/search.07f07601.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script>
     
     
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index 69c0b95..4ca10aa 100644
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+++ b/the-top-10/c10-stop-server-side-request-forgery/index.html
@@ -96,9 +96,7 @@
     
       
 
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   <nav class="md-header__inner md-grid" aria-label="Header">
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@@ -219,6 +217,98 @@
       
         
           
+            
+<nav class="md-tabs" aria-label="Tabs" data-md-component="tabs">
+  <div class="md-grid">
+    <ul class="md-tabs__list">
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+        <a href="../.." class="md-tabs__link">
+          
+  
+  Current Top 10 (WIP, 2024)
+
+        </a>
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+  
+
+    
+  
+
+      
+        
+  
+  
+  
+    
+    
+      <li class="md-tabs__item">
+        <a href="../../archive/2018/0x01-about-owasp/" class="md-tabs__link">
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+  
+  Top 10 2018
+
+        </a>
+      </li>
+    
+  
+
+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="../../archive/2016/" class="md-tabs__link">
+        
+  
+    
+  
+  Top 10 2016
+
+      </a>
+    </li>
+  
+
+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="../../archive/2014/" class="md-tabs__link">
+        
+  
+    
+  
+  Top 10 2014
+
+      </a>
+    </li>
+  
+
+      
+    </ul>
+  </div>
+</nav>
+          
         
       
       <main class="md-main" data-md-component="main">
@@ -232,8 +322,10 @@
                     
 
 
+  
+
 
-<nav class="md-nav md-nav--primary" aria-label="Navigation" data-md-level="0">
+<nav class="md-nav md-nav--primary md-nav--lifted" aria-label="Navigation" data-md-level="0">
   <label class="md-nav__title" for="__drawer">
     <a href="../.." title="OWASP Top 10 Proactive Controls" class="md-nav__button md-logo" aria-label="OWASP Top 10 Proactive Controls" data-md-component="logo">
       
@@ -262,6 +354,8 @@
       
   
   
+    
+  
   
   
     
@@ -271,28 +365,74 @@
         
         
       
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+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1" checked>
         
           
           <label class="md-nav__link" for="__nav_1" id="__nav_1_label" tabindex="">
             
   
   <span class="md-ellipsis">
-    Introduction
+    Current Top 10 (WIP, 2024)
   </span>
   
 
             <span class="md-nav__icon md-icon"></span>
           </label>
         
-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="false">
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="true">
           <label class="md-nav__title" for="__nav_1">
+            <span class="md-nav__icon md-icon"></span>
+            Current Top 10 (WIP, 2024)
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    
+    
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+      
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+          
+          
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--section md-nav__item--nested">
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+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_1" >
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+          
+          <label class="md-nav__link" for="__nav_1_1" id="__nav_1_1_label" tabindex="">
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+  
+  <span class="md-ellipsis">
+    Introduction
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+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_1_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_1">
             <span class="md-nav__icon md-icon"></span>
             Introduction
           </label>
@@ -388,9 +528,10 @@
     </li>
   
 
-    
-      
-      
+              
+            
+              
+                
   
   
   
@@ -399,7 +540,10 @@
     
     
       
+      
         
+          
+          
         
       
     
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+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_2" >
         
           
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+          <label class="md-nav__link" for="__nav_1_2" id="__nav_1_2_label" tabindex="">
             
   
   <span class="md-ellipsis">
@@ -422,8 +566,8 @@
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           </label>
         
-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="false">
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+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_2">
             <span class="md-nav__icon md-icon"></span>
             About the Top 10
           </label>
@@ -498,9 +642,10 @@
     </li>
   
 
-    
-      
-      
+              
+            
+              
+                
   
   
     
@@ -511,7 +656,10 @@
     
     
       
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+          
+          
         
       
     
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-        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_3" checked>
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_3" checked>
         
           
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+          <label class="md-nav__link" for="__nav_1_3" id="__nav_1_3_label" tabindex="">
             
   
   <span class="md-ellipsis">
@@ -534,8 +682,8 @@
             <span class="md-nav__icon md-icon"></span>
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-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_3_label" aria-expanded="true">
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+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_3_label" aria-expanded="true">
+          <label class="md-nav__title" for="__nav_1_3">
             <span class="md-nav__icon md-icon"></span>
             The Top 10 List
           </label>
@@ -872,19 +1020,430 @@
     </li>
   
 
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
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+  
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+    
+    
+      
+      
+        
       
+    
+    
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+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" >
+        
+          
+          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    Top 10 2018
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_2">
+            <span class="md-nav__icon md-icon"></span>
+            Top 10 2018
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
   
   
   
   
     <li class="md-nav__item">
-      <a href="../../final-word/" class="md-nav__link">
+      <a href="../../archive/2018/0x01-about-owasp/" class="md-nav__link">
         
   
   <span class="md-ellipsis">
-    Final Word
+    About OWASP
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x02-about-project/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Project
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x03-about-structure/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Structure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x04-introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c1-security-requirements/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c2-leverage-security-frameworks-libraries/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c3-secure-database/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c4-encode-escape-data/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c5-validate-inputs/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c6-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c7-enforce-access-controls/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c8-protect-data-everywhere/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Protect Data Everywhere
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c9-security-logging/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c10-errors-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Handle All Errors and Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2016/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2016
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2014/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2014
   </span>
   
 
@@ -1006,7 +1565,7 @@ <h2 id="implementation">Implementation</h2>
 <ul>
 <li>Input validation</li>
 <li>If outgoing requests have to be made, check the target against an allow-list</li>
-<li>If using XML, configure parsers securely to prevent XEE
+<li>If using XML, configure parser securely to prevent XEE
 Be aware of <a href="https://cheatsheetseries.owasp.org/assets/Server_Side_Request_Forgery_Prevention_Cheat_Sheet_Orange_Tsai_Talk.pdf">Unicode and other Character transformations</a> when performing input validation.</li>
 </ul>
 <h2 id="vulnerabilities-prevented">Vulnerabilities Prevented</h2>
@@ -1104,7 +1663,7 @@ <h2 id="tools">Tools</h2>
     </div>
     
     
-    <script id="__config" type="application/json">{"base": "../..", "features": ["navigation.sections", "navigation.tracking", "navigation.path", "navigation.top", "search.suggest", "search.highlight", "content.tabs.link", "content.code.annotation", "content.code.copy"], "search": "../../assets/javascripts/workers/search.07f07601.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script>
+    <script id="__config" type="application/json">{"base": "../..", "features": ["navigation.sections", "navigation.tracking", "navigation.path", "navigation.tabs", "navigation.top", "search.suggest", "search.highlight", "content.tabs.link", "content.code.annotation", "content.code.copy"], "search": "../../assets/javascripts/workers/search.07f07601.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script>
     
     
       <script src="../../assets/javascripts/bundle.56dfad97.min.js"></script>
diff --git a/the-top-10/c2-crypto/index.html b/the-top-10/c2-crypto/index.html
index ff2af14..5813d2d 100644
--- a/the-top-10/c2-crypto/index.html
+++ b/the-top-10/c2-crypto/index.html
@@ -96,9 +96,7 @@
     
       
 
-  
-
-<header class="md-header md-header--shadow" data-md-component="header">
+<header class="md-header" data-md-component="header">
   <nav class="md-header__inner md-grid" aria-label="Header">
     <a href="../.." title="OWASP Top 10 Proactive Controls" class="md-header__button md-logo" aria-label="OWASP Top 10 Proactive Controls" data-md-component="logo">
       
@@ -219,6 +217,98 @@
       
         
           
+            
+<nav class="md-tabs" aria-label="Tabs" data-md-component="tabs">
+  <div class="md-grid">
+    <ul class="md-tabs__list">
+      
+        
+  
+  
+    
+  
+  
+    
+    
+      
+  
+  
+    
+  
+  
+    
+    
+      <li class="md-tabs__item md-tabs__item--active">
+        <a href="../.." class="md-tabs__link">
+          
+  
+  Current Top 10 (WIP, 2024)
+
+        </a>
+      </li>
+    
+  
+
+    
+  
+
+      
+        
+  
+  
+  
+    
+    
+      <li class="md-tabs__item">
+        <a href="../../archive/2018/0x01-about-owasp/" class="md-tabs__link">
+          
+  
+  Top 10 2018
+
+        </a>
+      </li>
+    
+  
+
+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="../../archive/2016/" class="md-tabs__link">
+        
+  
+    
+  
+  Top 10 2016
+
+      </a>
+    </li>
+  
+
+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="../../archive/2014/" class="md-tabs__link">
+        
+  
+    
+  
+  Top 10 2014
+
+      </a>
+    </li>
+  
+
+      
+    </ul>
+  </div>
+</nav>
+          
         
       
       <main class="md-main" data-md-component="main">
@@ -232,8 +322,10 @@
                     
 
 
+  
+
 
-<nav class="md-nav md-nav--primary" aria-label="Navigation" data-md-level="0">
+<nav class="md-nav md-nav--primary md-nav--lifted" aria-label="Navigation" data-md-level="0">
   <label class="md-nav__title" for="__drawer">
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@@ -271,28 +365,74 @@
         
         
       
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+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1" checked>
         
           
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-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="false">
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="true">
           <label class="md-nav__title" for="__nav_1">
+            <span class="md-nav__icon md-icon"></span>
+            Current Top 10 (WIP, 2024)
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+              
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+  
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+
+            <span class="md-nav__icon md-icon"></span>
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+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_1_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_1">
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             Introduction
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@@ -388,9 +528,10 @@
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-    
-      
-      
+              
+            
+              
+                
   
   
   
@@ -399,7 +540,10 @@
     
     
       
+      
         
+          
+          
         
       
     
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+          <label class="md-nav__link" for="__nav_1_2" id="__nav_1_2_label" tabindex="">
             
   
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-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="false">
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+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_2">
             <span class="md-nav__icon md-icon"></span>
             About the Top 10
           </label>
@@ -498,9 +642,10 @@
     </li>
   
 
-    
-      
-      
+              
+            
+              
+                
   
   
     
@@ -511,7 +656,10 @@
     
     
       
+      
         
+          
+          
         
       
     
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+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_3" checked>
         
           
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+          <label class="md-nav__link" for="__nav_1_3" id="__nav_1_3_label" tabindex="">
             
   
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-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_3_label" aria-expanded="true">
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+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_3_label" aria-expanded="true">
+          <label class="md-nav__title" for="__nav_1_3">
             <span class="md-nav__icon md-icon"></span>
             The Top 10 List
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@@ -977,19 +1125,430 @@
     </li>
   
 
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
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+  
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+    
+    
+      
+      
+        
       
+    
+    
+    <li class="md-nav__item md-nav__item--nested">
       
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" >
+        
+          
+          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    Top 10 2018
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_2">
+            <span class="md-nav__icon md-icon"></span>
+            Top 10 2018
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
   
   
   
   
     <li class="md-nav__item">
-      <a href="../../final-word/" class="md-nav__link">
+      <a href="../../archive/2018/0x01-about-owasp/" class="md-nav__link">
         
   
   <span class="md-ellipsis">
-    Final Word
+    About OWASP
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x02-about-project/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Project
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x03-about-structure/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Structure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x04-introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c1-security-requirements/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c2-leverage-security-frameworks-libraries/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c3-secure-database/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c4-encode-escape-data/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c5-validate-inputs/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c6-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c7-enforce-access-controls/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c8-protect-data-everywhere/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Protect Data Everywhere
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c9-security-logging/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c10-errors-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Handle All Errors and Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2016/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2016
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2014/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2014
   </span>
   
 
@@ -1382,7 +1941,7 @@ <h2 id="tools">Tools</h2>
     </div>
     
     
-    <script id="__config" type="application/json">{"base": "../..", "features": ["navigation.sections", "navigation.tracking", "navigation.path", "navigation.top", "search.suggest", "search.highlight", "content.tabs.link", "content.code.annotation", "content.code.copy"], "search": "../../assets/javascripts/workers/search.07f07601.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script>
+    <script id="__config" type="application/json">{"base": "../..", "features": ["navigation.sections", "navigation.tracking", "navigation.path", "navigation.tabs", "navigation.top", "search.suggest", "search.highlight", "content.tabs.link", "content.code.annotation", "content.code.copy"], "search": "../../assets/javascripts/workers/search.07f07601.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script>
     
     
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index 4624940..79d799a 100644
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+++ b/the-top-10/c3-validate-input-and-handle-exceptions/index.html
@@ -96,9 +96,7 @@
     
       
 
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+<header class="md-header" data-md-component="header">
   <nav class="md-header__inner md-grid" aria-label="Header">
     <a href="../.." title="OWASP Top 10 Proactive Controls" class="md-header__button md-logo" aria-label="OWASP Top 10 Proactive Controls" data-md-component="logo">
       
@@ -219,6 +217,98 @@
       
         
           
+            
+<nav class="md-tabs" aria-label="Tabs" data-md-component="tabs">
+  <div class="md-grid">
+    <ul class="md-tabs__list">
+      
+        
+  
+  
+    
+  
+  
+    
+    
+      
+  
+  
+    
+  
+  
+    
+    
+      <li class="md-tabs__item md-tabs__item--active">
+        <a href="../.." class="md-tabs__link">
+          
+  
+  Current Top 10 (WIP, 2024)
+
+        </a>
+      </li>
+    
+  
+
+    
+  
+
+      
+        
+  
+  
+  
+    
+    
+      <li class="md-tabs__item">
+        <a href="../../archive/2018/0x01-about-owasp/" class="md-tabs__link">
+          
+  
+  Top 10 2018
+
+        </a>
+      </li>
+    
+  
+
+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="../../archive/2016/" class="md-tabs__link">
+        
+  
+    
+  
+  Top 10 2016
+
+      </a>
+    </li>
+  
+
+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="../../archive/2014/" class="md-tabs__link">
+        
+  
+    
+  
+  Top 10 2014
+
+      </a>
+    </li>
+  
+
+      
+    </ul>
+  </div>
+</nav>
+          
         
       
       <main class="md-main" data-md-component="main">
@@ -232,8 +322,10 @@
                     
 
 
+  
+
 
-<nav class="md-nav md-nav--primary" aria-label="Navigation" data-md-level="0">
+<nav class="md-nav md-nav--primary md-nav--lifted" aria-label="Navigation" data-md-level="0">
   <label class="md-nav__title" for="__drawer">
     <a href="../.." title="OWASP Top 10 Proactive Controls" class="md-nav__button md-logo" aria-label="OWASP Top 10 Proactive Controls" data-md-component="logo">
       
@@ -262,6 +354,8 @@
       
   
   
+    
+  
   
   
     
@@ -271,28 +365,74 @@
         
         
       
+      
+        
+      
     
     
-    <li class="md-nav__item md-nav__item--section md-nav__item--nested">
+    <li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
       
         
         
-        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1" >
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1" checked>
         
           
           <label class="md-nav__link" for="__nav_1" id="__nav_1_label" tabindex="">
             
   
   <span class="md-ellipsis">
-    Introduction
+    Current Top 10 (WIP, 2024)
   </span>
   
 
             <span class="md-nav__icon md-icon"></span>
           </label>
         
-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="false">
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="true">
           <label class="md-nav__title" for="__nav_1">
+            <span class="md-nav__icon md-icon"></span>
+            Current Top 10 (WIP, 2024)
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    
+    
+    
+      
+      
+        
+          
+          
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--section md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_1" >
+        
+          
+          <label class="md-nav__link" for="__nav_1_1" id="__nav_1_1_label" tabindex="">
+            
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_1_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_1">
             <span class="md-nav__icon md-icon"></span>
             Introduction
           </label>
@@ -388,9 +528,10 @@
     </li>
   
 
-    
-      
-      
+              
+            
+              
+                
   
   
   
@@ -399,7 +540,10 @@
     
     
       
+      
         
+          
+          
         
       
     
@@ -408,10 +552,10 @@
       
         
         
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+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_2" >
         
           
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+          <label class="md-nav__link" for="__nav_1_2" id="__nav_1_2_label" tabindex="">
             
   
   <span class="md-ellipsis">
@@ -422,8 +566,8 @@
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-          <label class="md-nav__title" for="__nav_2">
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_2">
             <span class="md-nav__icon md-icon"></span>
             About the Top 10
           </label>
@@ -498,9 +642,10 @@
     </li>
   
 
-    
-      
-      
+              
+            
+              
+                
   
   
     
@@ -511,7 +656,10 @@
     
     
       
+      
         
+          
+          
         
       
     
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+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_3" checked>
         
           
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+          <label class="md-nav__link" for="__nav_1_3" id="__nav_1_3_label" tabindex="">
             
   
   <span class="md-ellipsis">
@@ -534,8 +682,8 @@
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-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_3_label" aria-expanded="true">
-          <label class="md-nav__title" for="__nav_3">
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_3_label" aria-expanded="true">
+          <label class="md-nav__title" for="__nav_1_3">
             <span class="md-nav__icon md-icon"></span>
             The Top 10 List
           </label>
@@ -995,19 +1143,430 @@
     </li>
   
 
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
     
+    
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+        
       
+    
+    
+    <li class="md-nav__item md-nav__item--nested">
       
+        
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+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" >
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+  <span class="md-ellipsis">
+    Top 10 2018
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+            <span class="md-nav__icon md-icon"></span>
+            Top 10 2018
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+          <ul class="md-nav__list" data-md-scrollfix>
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     <li class="md-nav__item">
-      <a href="../../final-word/" class="md-nav__link">
+      <a href="../../archive/2018/0x01-about-owasp/" class="md-nav__link">
         
   
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-    Final Word
+    About OWASP
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+  
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+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x02-about-project/" class="md-nav__link">
+        
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+  <span class="md-ellipsis">
+    About Project
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+  
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+  
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+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x03-about-structure/" class="md-nav__link">
+        
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+  <span class="md-ellipsis">
+    About Structure
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+  
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+  
+
+              
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+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x04-introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
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+    </li>
+  
+
+              
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+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c1-security-requirements/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c2-leverage-security-frameworks-libraries/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
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+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c3-secure-database/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c4-encode-escape-data/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c5-validate-inputs/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c6-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c7-enforce-access-controls/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c8-protect-data-everywhere/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Protect Data Everywhere
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c9-security-logging/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c10-errors-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Handle All Errors and Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2016/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2016
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2014/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2014
   </span>
   
 
@@ -1250,7 +1809,7 @@ <h3 id="syntactic-and-semantic-validity">Syntactic and Semantic Validity</h3>
 <p>An application should check that data is <strong>syntactically</strong> and <strong>semantically</strong> valid (in that order) before using it in any way (including displaying it back to the user).</p>
 <ul>
 <li>
-<p><strong>Syntactic validity</strong> means that the data is in the expected form. For example, an application may allow users to select a four-digit “account ID” to perform some operation. The application should assume the user is entering a SQL injection payload and check that the data entered by the user is precisely four digits in length and consists only of numbers (in addition to utilizing proper query parameterization).</p>
+<p><strong>Syntactic validity</strong> means that the data is in the expected form. For example, an application may allow users to select a four-digit “account ID” to perform some operation. The application should assume the user is entering a SQL injection payload and check that the data entered by the user is precisely four digits in length and consists only of numbers (in addition to utilizing proper query parametrization).</p>
 </li>
 <li>
 <p><strong>Semantic validity</strong> includes only accepting input within an acceptable range for application functionality and context. For example, a start date must be before an end date when choosing date ranges.</p>
@@ -1454,7 +2013,7 @@ <h2 id="tools">Tools</h2>
     </div>
     
     
-    <script id="__config" type="application/json">{"base": "../..", "features": ["navigation.sections", "navigation.tracking", "navigation.path", "navigation.top", "search.suggest", "search.highlight", "content.tabs.link", "content.code.annotation", "content.code.copy"], "search": "../../assets/javascripts/workers/search.07f07601.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script>
+    <script id="__config" type="application/json">{"base": "../..", "features": ["navigation.sections", "navigation.tracking", "navigation.path", "navigation.tabs", "navigation.top", "search.suggest", "search.highlight", "content.tabs.link", "content.code.annotation", "content.code.copy"], "search": "../../assets/javascripts/workers/search.07f07601.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script>
     
     
       <script src="../../assets/javascripts/bundle.56dfad97.min.js"></script>
diff --git a/the-top-10/c4-secure-architecture/index.html b/the-top-10/c4-secure-architecture/index.html
index 653360f..c9697b6 100644
--- a/the-top-10/c4-secure-architecture/index.html
+++ b/the-top-10/c4-secure-architecture/index.html
@@ -96,9 +96,7 @@
     
       
 
-  
-
-<header class="md-header md-header--shadow" data-md-component="header">
+<header class="md-header" data-md-component="header">
   <nav class="md-header__inner md-grid" aria-label="Header">
     <a href="../.." title="OWASP Top 10 Proactive Controls" class="md-header__button md-logo" aria-label="OWASP Top 10 Proactive Controls" data-md-component="logo">
       
@@ -219,6 +217,98 @@
       
         
           
+            
+<nav class="md-tabs" aria-label="Tabs" data-md-component="tabs">
+  <div class="md-grid">
+    <ul class="md-tabs__list">
+      
+        
+  
+  
+    
+  
+  
+    
+    
+      
+  
+  
+    
+  
+  
+    
+    
+      <li class="md-tabs__item md-tabs__item--active">
+        <a href="../.." class="md-tabs__link">
+          
+  
+  Current Top 10 (WIP, 2024)
+
+        </a>
+      </li>
+    
+  
+
+    
+  
+
+      
+        
+  
+  
+  
+    
+    
+      <li class="md-tabs__item">
+        <a href="../../archive/2018/0x01-about-owasp/" class="md-tabs__link">
+          
+  
+  Top 10 2018
+
+        </a>
+      </li>
+    
+  
+
+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="../../archive/2016/" class="md-tabs__link">
+        
+  
+    
+  
+  Top 10 2016
+
+      </a>
+    </li>
+  
+
+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="../../archive/2014/" class="md-tabs__link">
+        
+  
+    
+  
+  Top 10 2014
+
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+    </li>
+  
+
+      
+    </ul>
+  </div>
+</nav>
+          
         
       
       <main class="md-main" data-md-component="main">
@@ -232,8 +322,10 @@
                     
 
 
+  
+
 
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+<nav class="md-nav md-nav--primary md-nav--lifted" aria-label="Navigation" data-md-level="0">
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     <a href="../.." title="OWASP Top 10 Proactive Controls" class="md-nav__button md-logo" aria-label="OWASP Top 10 Proactive Controls" data-md-component="logo">
       
@@ -262,6 +354,8 @@
       
   
   
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+  
   
   
     
@@ -271,28 +365,74 @@
         
         
       
+      
+        
+      
     
     
-    <li class="md-nav__item md-nav__item--section md-nav__item--nested">
+    <li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
       
         
         
-        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1" >
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1" checked>
         
           
           <label class="md-nav__link" for="__nav_1" id="__nav_1_label" tabindex="">
             
   
   <span class="md-ellipsis">
-    Introduction
+    Current Top 10 (WIP, 2024)
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           </label>
         
-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="false">
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="true">
           <label class="md-nav__title" for="__nav_1">
+            <span class="md-nav__icon md-icon"></span>
+            Current Top 10 (WIP, 2024)
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
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+    
+    
+    
+      
+      
+        
+          
+          
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--section md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_1" >
+        
+          
+          <label class="md-nav__link" for="__nav_1_1" id="__nav_1_1_label" tabindex="">
+            
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_1_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_1">
             <span class="md-nav__icon md-icon"></span>
             Introduction
           </label>
@@ -388,9 +528,10 @@
     </li>
   
 
-    
-      
-      
+              
+            
+              
+                
   
   
   
@@ -399,7 +540,10 @@
     
     
       
+      
         
+          
+          
         
       
     
@@ -408,10 +552,10 @@
       
         
         
-        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" >
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_2" >
         
           
-          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="">
+          <label class="md-nav__link" for="__nav_1_2" id="__nav_1_2_label" tabindex="">
             
   
   <span class="md-ellipsis">
@@ -422,8 +566,8 @@
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-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="false">
-          <label class="md-nav__title" for="__nav_2">
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_2">
             <span class="md-nav__icon md-icon"></span>
             About the Top 10
           </label>
@@ -498,9 +642,10 @@
     </li>
   
 
-    
-      
-      
+              
+            
+              
+                
   
   
     
@@ -511,7 +656,10 @@
     
     
       
+      
         
+          
+          
         
       
     
@@ -520,10 +668,10 @@
       
         
         
-        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_3" checked>
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_3" checked>
         
           
-          <label class="md-nav__link" for="__nav_3" id="__nav_3_label" tabindex="">
+          <label class="md-nav__link" for="__nav_1_3" id="__nav_1_3_label" tabindex="">
             
   
   <span class="md-ellipsis">
@@ -534,8 +682,8 @@
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           </label>
         
-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_3_label" aria-expanded="true">
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+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_3_label" aria-expanded="true">
+          <label class="md-nav__title" for="__nav_1_3">
             <span class="md-nav__icon md-icon"></span>
             The Top 10 List
           </label>
@@ -923,19 +1071,430 @@
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+  
+  
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+  
+    <li class="md-nav__item">
+      <a href="../../final-word/" class="md-nav__link">
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+  <span class="md-ellipsis">
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+
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+  
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+        
       
+    
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+    <li class="md-nav__item md-nav__item--nested">
       
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+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" >
+        
+          
+          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    Top 10 2018
+  </span>
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+          </label>
+        
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="false">
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+            <span class="md-nav__icon md-icon"></span>
+            Top 10 2018
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
   
   
   
   
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-      <a href="../../final-word/" class="md-nav__link">
+      <a href="../../archive/2018/0x01-about-owasp/" class="md-nav__link">
         
   
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-    Final Word
+    About OWASP
+  </span>
+  
+
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+  
+
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+            
+              
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+  
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+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x02-about-project/" class="md-nav__link">
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+    About Project
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+  
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+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x03-about-structure/" class="md-nav__link">
+        
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+  <span class="md-ellipsis">
+    About Structure
+  </span>
+  
+
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+    </li>
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+  
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+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x04-introduction/" class="md-nav__link">
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+    Introduction
+  </span>
+  
+
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+    </li>
+  
+
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+  
+  
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+    <li class="md-nav__item">
+      <a href="../../archive/2018/c1-security-requirements/" class="md-nav__link">
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+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
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+    </li>
+  
+
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+  
+  
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+    <li class="md-nav__item">
+      <a href="../../archive/2018/c2-leverage-security-frameworks-libraries/" class="md-nav__link">
+        
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+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
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+    </li>
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+
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+    <li class="md-nav__item">
+      <a href="../../archive/2018/c3-secure-database/" class="md-nav__link">
+        
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+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
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+    <li class="md-nav__item">
+      <a href="../../archive/2018/c4-encode-escape-data/" class="md-nav__link">
+        
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+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
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+  
+
+              
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+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c5-validate-inputs/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c6-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c7-enforce-access-controls/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c8-protect-data-everywhere/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Protect Data Everywhere
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c9-security-logging/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c10-errors-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Handle All Errors and Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2016/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2016
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2014/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2014
   </span>
   
 
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+    <script id="__config" type="application/json">{"base": "../..", "features": ["navigation.sections", "navigation.tracking", "navigation.path", "navigation.tabs", "navigation.top", "search.suggest", "search.highlight", "content.tabs.link", "content.code.annotation", "content.code.copy"], "search": "../../assets/javascripts/workers/search.07f07601.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script>
     
     
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diff --git a/the-top-10/c5-secure-by-default/index.html b/the-top-10/c5-secure-by-default/index.html
index 052a1d8..79ed88e 100644
--- a/the-top-10/c5-secure-by-default/index.html
+++ b/the-top-10/c5-secure-by-default/index.html
@@ -96,9 +96,7 @@
     
       
 
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-<header class="md-header md-header--shadow" data-md-component="header">
+<header class="md-header" data-md-component="header">
   <nav class="md-header__inner md-grid" aria-label="Header">
     <a href="../.." title="OWASP Top 10 Proactive Controls" class="md-header__button md-logo" aria-label="OWASP Top 10 Proactive Controls" data-md-component="logo">
       
@@ -219,6 +217,98 @@
       
         
           
+            
+<nav class="md-tabs" aria-label="Tabs" data-md-component="tabs">
+  <div class="md-grid">
+    <ul class="md-tabs__list">
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+  
+  
+    
+    
+      <li class="md-tabs__item md-tabs__item--active">
+        <a href="../.." class="md-tabs__link">
+          
+  
+  Current Top 10 (WIP, 2024)
+
+        </a>
+      </li>
+    
+  
+
+    
+  
+
+      
+        
+  
+  
+  
+    
+    
+      <li class="md-tabs__item">
+        <a href="../../archive/2018/0x01-about-owasp/" class="md-tabs__link">
+          
+  
+  Top 10 2018
+
+        </a>
+      </li>
+    
+  
+
+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="../../archive/2016/" class="md-tabs__link">
+        
+  
+    
+  
+  Top 10 2016
+
+      </a>
+    </li>
+  
+
+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="../../archive/2014/" class="md-tabs__link">
+        
+  
+    
+  
+  Top 10 2014
+
+      </a>
+    </li>
+  
+
+      
+    </ul>
+  </div>
+</nav>
+          
         
       
       <main class="md-main" data-md-component="main">
@@ -232,8 +322,10 @@
                     
 
 
+  
+
 
-<nav class="md-nav md-nav--primary" aria-label="Navigation" data-md-level="0">
+<nav class="md-nav md-nav--primary md-nav--lifted" aria-label="Navigation" data-md-level="0">
   <label class="md-nav__title" for="__drawer">
     <a href="../.." title="OWASP Top 10 Proactive Controls" class="md-nav__button md-logo" aria-label="OWASP Top 10 Proactive Controls" data-md-component="logo">
       
@@ -262,6 +354,8 @@
       
   
   
+    
+  
   
   
     
@@ -271,28 +365,74 @@
         
         
       
+      
+        
+      
     
     
-    <li class="md-nav__item md-nav__item--section md-nav__item--nested">
+    <li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
       
         
         
-        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1" >
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1" checked>
         
           
           <label class="md-nav__link" for="__nav_1" id="__nav_1_label" tabindex="">
             
   
   <span class="md-ellipsis">
-    Introduction
+    Current Top 10 (WIP, 2024)
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             <span class="md-nav__icon md-icon"></span>
           </label>
         
-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="false">
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="true">
           <label class="md-nav__title" for="__nav_1">
+            <span class="md-nav__icon md-icon"></span>
+            Current Top 10 (WIP, 2024)
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    
+    
+    
+      
+      
+        
+          
+          
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--section md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_1" >
+        
+          
+          <label class="md-nav__link" for="__nav_1_1" id="__nav_1_1_label" tabindex="">
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+  
+  <span class="md-ellipsis">
+    Introduction
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+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_1_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_1">
             <span class="md-nav__icon md-icon"></span>
             Introduction
           </label>
@@ -388,9 +528,10 @@
     </li>
   
 
-    
-      
-      
+              
+            
+              
+                
   
   
   
@@ -399,7 +540,10 @@
     
     
       
+      
         
+          
+          
         
       
     
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@@ -422,8 +566,8 @@
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-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="false">
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+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_2">
             <span class="md-nav__icon md-icon"></span>
             About the Top 10
           </label>
@@ -498,9 +642,10 @@
     </li>
   
 
-    
-      
-      
+              
+            
+              
+                
   
   
     
@@ -511,7 +656,10 @@
     
     
       
+      
         
+          
+          
         
       
     
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+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_3" checked>
         
           
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+          <label class="md-nav__link" for="__nav_1_3" id="__nav_1_3_label" tabindex="">
             
   
   <span class="md-ellipsis">
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-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_3_label" aria-expanded="true">
-          <label class="md-nav__title" for="__nav_3">
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_3_label" aria-expanded="true">
+          <label class="md-nav__title" for="__nav_1_3">
             <span class="md-nav__icon md-icon"></span>
             The Top 10 List
           </label>
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     </li>
   
 
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
     
+    
+    
+      
+      
+        
       
+    
+    
+    <li class="md-nav__item md-nav__item--nested">
       
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" >
+        
+          
+          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    Top 10 2018
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_2">
+            <span class="md-nav__icon md-icon"></span>
+            Top 10 2018
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
   
   
   
   
     <li class="md-nav__item">
-      <a href="../../final-word/" class="md-nav__link">
+      <a href="../../archive/2018/0x01-about-owasp/" class="md-nav__link">
         
   
   <span class="md-ellipsis">
-    Final Word
+    About OWASP
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x02-about-project/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Project
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x03-about-structure/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Structure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x04-introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c1-security-requirements/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c2-leverage-security-frameworks-libraries/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c3-secure-database/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c4-encode-escape-data/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c5-validate-inputs/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c6-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c7-enforce-access-controls/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c8-protect-data-everywhere/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Protect Data Everywhere
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c9-security-logging/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c10-errors-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Handle All Errors and Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2016/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2016
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2014/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2014
   </span>
   
 
@@ -1155,7 +1714,7 @@ <h2 id="tools">Tools</h2>
     </div>
     
     
-    <script id="__config" type="application/json">{"base": "../..", "features": ["navigation.sections", "navigation.tracking", "navigation.path", "navigation.top", "search.suggest", "search.highlight", "content.tabs.link", "content.code.annotation", "content.code.copy"], "search": "../../assets/javascripts/workers/search.07f07601.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script>
+    <script id="__config" type="application/json">{"base": "../..", "features": ["navigation.sections", "navigation.tracking", "navigation.path", "navigation.tabs", "navigation.top", "search.suggest", "search.highlight", "content.tabs.link", "content.code.annotation", "content.code.copy"], "search": "../../assets/javascripts/workers/search.07f07601.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script>
     
     
       <script src="../../assets/javascripts/bundle.56dfad97.min.js"></script>
diff --git a/the-top-10/c6-use-secure-dependencies/index.html b/the-top-10/c6-use-secure-dependencies/index.html
index c21f332..88b55b5 100644
--- a/the-top-10/c6-use-secure-dependencies/index.html
+++ b/the-top-10/c6-use-secure-dependencies/index.html
@@ -96,9 +96,7 @@
     
       
 
-  
-
-<header class="md-header md-header--shadow" data-md-component="header">
+<header class="md-header" data-md-component="header">
   <nav class="md-header__inner md-grid" aria-label="Header">
     <a href="../.." title="OWASP Top 10 Proactive Controls" class="md-header__button md-logo" aria-label="OWASP Top 10 Proactive Controls" data-md-component="logo">
       
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           <label class="md-nav__title" for="__nav_1">
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+            Current Top 10 (WIP, 2024)
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@@ -498,9 +642,10 @@
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-    
-      
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+              
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+                
   
   
     
@@ -511,7 +656,10 @@
     
     
       
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+  
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+      <a href="../../final-word/" class="md-nav__link">
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+  <span class="md-ellipsis">
+    Final Word
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+          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="0">
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+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_2">
+            <span class="md-nav__icon md-icon"></span>
+            Top 10 2018
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
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     <li class="md-nav__item">
-      <a href="../../final-word/" class="md-nav__link">
+      <a href="../../archive/2018/0x01-about-owasp/" class="md-nav__link">
         
   
   <span class="md-ellipsis">
-    Final Word
+    About OWASP
+  </span>
+  
+
+      </a>
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+
+              
+            
+              
+                
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+      <a href="../../archive/2018/0x02-about-project/" class="md-nav__link">
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+    About Project
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+  
+
+      </a>
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+      <a href="../../archive/2018/0x03-about-structure/" class="md-nav__link">
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+    About Structure
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+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x04-introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
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+  
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+              
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+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c1-security-requirements/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c2-leverage-security-frameworks-libraries/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c3-secure-database/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c4-encode-escape-data/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c5-validate-inputs/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c6-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
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+    <li class="md-nav__item">
+      <a href="../../archive/2018/c7-enforce-access-controls/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c8-protect-data-everywhere/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Protect Data Everywhere
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c9-security-logging/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c10-errors-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Handle All Errors and Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
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+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2016/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2016
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2014/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2014
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+    <script id="__config" type="application/json">{"base": "../..", "features": ["navigation.sections", "navigation.tracking", "navigation.path", "navigation.tabs", "navigation.top", "search.suggest", "search.highlight", "content.tabs.link", "content.code.annotation", "content.code.copy"], "search": "../../assets/javascripts/workers/search.07f07601.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script>
     
     
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index c1732e8..69df11c 100644
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@@ -96,9 +96,7 @@
     
       
 
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+<header class="md-header" data-md-component="header">
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     <a href="../.." title="OWASP Top 10 Proactive Controls" class="md-header__button md-logo" aria-label="OWASP Top 10 Proactive Controls" data-md-component="logo">
       
@@ -219,6 +217,98 @@
       
         
           
+            
+<nav class="md-tabs" aria-label="Tabs" data-md-component="tabs">
+  <div class="md-grid">
+    <ul class="md-tabs__list">
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+  
+    
+    
+      
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+  
+  
+    
+    
+      <li class="md-tabs__item md-tabs__item--active">
+        <a href="../.." class="md-tabs__link">
+          
+  
+  Current Top 10 (WIP, 2024)
+
+        </a>
+      </li>
+    
+  
+
+    
+  
+
+      
+        
+  
+  
+  
+    
+    
+      <li class="md-tabs__item">
+        <a href="../../archive/2018/0x01-about-owasp/" class="md-tabs__link">
+          
+  
+  Top 10 2018
+
+        </a>
+      </li>
+    
+  
+
+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="../../archive/2016/" class="md-tabs__link">
+        
+  
+    
+  
+  Top 10 2016
+
+      </a>
+    </li>
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+
+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="../../archive/2014/" class="md-tabs__link">
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+  
+  Top 10 2014
+
+      </a>
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+  
+
+      
+    </ul>
+  </div>
+</nav>
+          
         
       
       <main class="md-main" data-md-component="main">
@@ -232,8 +322,10 @@
                     
 
 
+  
+
 
-<nav class="md-nav md-nav--primary" aria-label="Navigation" data-md-level="0">
+<nav class="md-nav md-nav--primary md-nav--lifted" aria-label="Navigation" data-md-level="0">
   <label class="md-nav__title" for="__drawer">
     <a href="../.." title="OWASP Top 10 Proactive Controls" class="md-nav__button md-logo" aria-label="OWASP Top 10 Proactive Controls" data-md-component="logo">
       
@@ -262,6 +354,8 @@
       
   
   
+    
+  
   
   
     
@@ -271,28 +365,74 @@
         
         
       
+      
+        
+      
     
     
-    <li class="md-nav__item md-nav__item--section md-nav__item--nested">
+    <li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
       
         
         
-        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1" >
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1" checked>
         
           
           <label class="md-nav__link" for="__nav_1" id="__nav_1_label" tabindex="">
             
   
   <span class="md-ellipsis">
-    Introduction
+    Current Top 10 (WIP, 2024)
   </span>
   
 
             <span class="md-nav__icon md-icon"></span>
           </label>
         
-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="false">
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="true">
           <label class="md-nav__title" for="__nav_1">
+            <span class="md-nav__icon md-icon"></span>
+            Current Top 10 (WIP, 2024)
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
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+    
+    
+      
+      
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+          
+          
+        
+      
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+          <label class="md-nav__link" for="__nav_1_1" id="__nav_1_1_label" tabindex="">
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+
+            <span class="md-nav__icon md-icon"></span>
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+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_1_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_1">
             <span class="md-nav__icon md-icon"></span>
             Introduction
           </label>
@@ -388,9 +528,10 @@
     </li>
   
 
-    
-      
-      
+              
+            
+              
+                
   
   
   
@@ -399,7 +540,10 @@
     
     
       
+      
         
+          
+          
         
       
     
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+          <label class="md-nav__link" for="__nav_1_2" id="__nav_1_2_label" tabindex="">
             
   
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@@ -422,8 +566,8 @@
             <span class="md-nav__icon md-icon"></span>
           </label>
         
-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="false">
-          <label class="md-nav__title" for="__nav_2">
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_2">
             <span class="md-nav__icon md-icon"></span>
             About the Top 10
           </label>
@@ -498,9 +642,10 @@
     </li>
   
 
-    
-      
-      
+              
+            
+              
+                
   
   
     
@@ -511,7 +656,10 @@
     
     
       
+      
         
+          
+          
         
       
     
@@ -520,10 +668,10 @@
       
         
         
-        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_3" checked>
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_3" checked>
         
           
-          <label class="md-nav__link" for="__nav_3" id="__nav_3_label" tabindex="">
+          <label class="md-nav__link" for="__nav_1_3" id="__nav_1_3_label" tabindex="">
             
   
   <span class="md-ellipsis">
@@ -534,8 +682,8 @@
             <span class="md-nav__icon md-icon"></span>
           </label>
         
-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_3_label" aria-expanded="true">
-          <label class="md-nav__title" for="__nav_3">
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_3_label" aria-expanded="true">
+          <label class="md-nav__title" for="__nav_1_3">
             <span class="md-nav__icon md-icon"></span>
             The Top 10 List
           </label>
@@ -1025,19 +1173,430 @@
     </li>
   
 
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
     
+    
+    
+      
+      
+        
       
+    
+    
+    <li class="md-nav__item md-nav__item--nested">
       
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" >
+        
+          
+          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    Top 10 2018
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_2">
+            <span class="md-nav__icon md-icon"></span>
+            Top 10 2018
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
   
   
   
   
     <li class="md-nav__item">
-      <a href="../../final-word/" class="md-nav__link">
+      <a href="../../archive/2018/0x01-about-owasp/" class="md-nav__link">
         
   
   <span class="md-ellipsis">
-    Final Word
+    About OWASP
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x02-about-project/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Project
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x03-about-structure/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Structure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x04-introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c1-security-requirements/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c2-leverage-security-frameworks-libraries/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c3-secure-database/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c4-encode-escape-data/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c5-validate-inputs/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c6-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c7-enforce-access-controls/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c8-protect-data-everywhere/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Protect Data Everywhere
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c9-security-logging/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c10-errors-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Handle All Errors and Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2016/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2016
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2014/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2014
   </span>
   
 
@@ -1382,7 +1941,7 @@ <h3 id="browser-cookies">Browser Cookies</h3>
 <li>Please be aware, that while stating a path during cookie setup will limit the browser to only submit the cookie if the request lies within the stated path. This protects the cookie of one application from being accessed by another application within a different path on the same server. This protection is brittle: if the “other” application has an XSS vulnerability and the attacker can introduce iframes, the “path” protection can be circumvented.</li>
 <li>The ‘secure’ flag should be set to ensure the transfer is done via secure channel only (TLS).</li>
 <li>HttpOnly flag should be set to prevent the cookie from being accessed via JavaScript.</li>
-<li>Adding “<a href="https://owasp.org/www-community/SameSite">samesite</a>” attributes to cookies prevents <a href="https://caniuse.com/#search=samesite">some modern browsers</a> from sending cookies with cross-site requests and provides protection against cross-site request forgery and information leakage attacks.</li>
+<li>Adding “<a href="https://owasp.org/www-community/SameSite">SameSite</a>” attributes to cookies prevents <a href="https://caniuse.com/#search=samesite">some modern browsers</a> from sending cookies with cross-site requests and provides protection against cross-site request forgery and information leakage attacks.</li>
 </ul>
 <h2 id="vulnerabilities-prevented">Vulnerabilities Prevented</h2>
 <ul>
@@ -1484,7 +2043,7 @@ <h2 id="tools">Tools</h2>
     </div>
     
     
-    <script id="__config" type="application/json">{"base": "../..", "features": ["navigation.sections", "navigation.tracking", "navigation.path", "navigation.top", "search.suggest", "search.highlight", "content.tabs.link", "content.code.annotation", "content.code.copy"], "search": "../../assets/javascripts/workers/search.07f07601.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script>
+    <script id="__config" type="application/json">{"base": "../..", "features": ["navigation.sections", "navigation.tracking", "navigation.path", "navigation.tabs", "navigation.top", "search.suggest", "search.highlight", "content.tabs.link", "content.code.annotation", "content.code.copy"], "search": "../../assets/javascripts/workers/search.07f07601.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script>
     
     
       <script src="../../assets/javascripts/bundle.56dfad97.min.js"></script>
diff --git a/the-top-10/c8-help-the-browser-defend-the-user/index.html b/the-top-10/c8-help-the-browser-defend-the-user/index.html
index 5e3c91e..ec0c5fb 100644
--- a/the-top-10/c8-help-the-browser-defend-the-user/index.html
+++ b/the-top-10/c8-help-the-browser-defend-the-user/index.html
@@ -96,9 +96,7 @@
     
       
 
-  
-
-<header class="md-header md-header--shadow" data-md-component="header">
+<header class="md-header" data-md-component="header">
   <nav class="md-header__inner md-grid" aria-label="Header">
     <a href="../.." title="OWASP Top 10 Proactive Controls" class="md-header__button md-logo" aria-label="OWASP Top 10 Proactive Controls" data-md-component="logo">
       
@@ -219,6 +217,98 @@
       
         
           
+            
+<nav class="md-tabs" aria-label="Tabs" data-md-component="tabs">
+  <div class="md-grid">
+    <ul class="md-tabs__list">
+      
+        
+  
+  
+    
+  
+  
+    
+    
+      
+  
+  
+    
+  
+  
+    
+    
+      <li class="md-tabs__item md-tabs__item--active">
+        <a href="../.." class="md-tabs__link">
+          
+  
+  Current Top 10 (WIP, 2024)
+
+        </a>
+      </li>
+    
+  
+
+    
+  
+
+      
+        
+  
+  
+  
+    
+    
+      <li class="md-tabs__item">
+        <a href="../../archive/2018/0x01-about-owasp/" class="md-tabs__link">
+          
+  
+  Top 10 2018
+
+        </a>
+      </li>
+    
+  
+
+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="../../archive/2016/" class="md-tabs__link">
+        
+  
+    
+  
+  Top 10 2016
+
+      </a>
+    </li>
+  
+
+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="../../archive/2014/" class="md-tabs__link">
+        
+  
+    
+  
+  Top 10 2014
+
+      </a>
+    </li>
+  
+
+      
+    </ul>
+  </div>
+</nav>
+          
         
       
       <main class="md-main" data-md-component="main">
@@ -232,8 +322,10 @@
                     
 
 
+  
+
 
-<nav class="md-nav md-nav--primary" aria-label="Navigation" data-md-level="0">
+<nav class="md-nav md-nav--primary md-nav--lifted" aria-label="Navigation" data-md-level="0">
   <label class="md-nav__title" for="__drawer">
     <a href="../.." title="OWASP Top 10 Proactive Controls" class="md-nav__button md-logo" aria-label="OWASP Top 10 Proactive Controls" data-md-component="logo">
       
@@ -262,6 +354,8 @@
       
   
   
+    
+  
   
   
     
@@ -271,28 +365,74 @@
         
         
       
+      
+        
+      
     
     
-    <li class="md-nav__item md-nav__item--section md-nav__item--nested">
+    <li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
       
         
         
-        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1" >
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1" checked>
         
           
           <label class="md-nav__link" for="__nav_1" id="__nav_1_label" tabindex="">
             
   
   <span class="md-ellipsis">
-    Introduction
+    Current Top 10 (WIP, 2024)
   </span>
   
 
             <span class="md-nav__icon md-icon"></span>
           </label>
         
-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="false">
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="true">
           <label class="md-nav__title" for="__nav_1">
+            <span class="md-nav__icon md-icon"></span>
+            Current Top 10 (WIP, 2024)
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    
+    
+    
+      
+      
+        
+          
+          
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--section md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_1" >
+        
+          
+          <label class="md-nav__link" for="__nav_1_1" id="__nav_1_1_label" tabindex="">
+            
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_1_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_1">
             <span class="md-nav__icon md-icon"></span>
             Introduction
           </label>
@@ -388,9 +528,10 @@
     </li>
   
 
-    
-      
-      
+              
+            
+              
+                
   
   
   
@@ -399,7 +540,10 @@
     
     
       
+      
         
+          
+          
         
       
     
@@ -408,10 +552,10 @@
       
         
         
-        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" >
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_2" >
         
           
-          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="">
+          <label class="md-nav__link" for="__nav_1_2" id="__nav_1_2_label" tabindex="">
             
   
   <span class="md-ellipsis">
@@ -422,8 +566,8 @@
             <span class="md-nav__icon md-icon"></span>
           </label>
         
-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="false">
-          <label class="md-nav__title" for="__nav_2">
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_2">
             <span class="md-nav__icon md-icon"></span>
             About the Top 10
           </label>
@@ -498,9 +642,10 @@
     </li>
   
 
-    
-      
-      
+              
+            
+              
+                
   
   
     
@@ -511,7 +656,10 @@
     
     
       
+      
         
+          
+          
         
       
     
@@ -520,10 +668,10 @@
       
         
         
-        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_3" checked>
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_3" checked>
         
           
-          <label class="md-nav__link" for="__nav_3" id="__nav_3_label" tabindex="">
+          <label class="md-nav__link" for="__nav_1_3" id="__nav_1_3_label" tabindex="">
             
   
   <span class="md-ellipsis">
@@ -534,8 +682,8 @@
             <span class="md-nav__icon md-icon"></span>
           </label>
         
-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_3_label" aria-expanded="true">
-          <label class="md-nav__title" for="__nav_3">
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_3_label" aria-expanded="true">
+          <label class="md-nav__title" for="__nav_1_3">
             <span class="md-nav__icon md-icon"></span>
             The Top 10 List
           </label>
@@ -938,19 +1086,430 @@
     </li>
   
 
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
     
+    
+    
+      
+      
+        
       
+    
+    
+    <li class="md-nav__item md-nav__item--nested">
       
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" >
+        
+          
+          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    Top 10 2018
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_2">
+            <span class="md-nav__icon md-icon"></span>
+            Top 10 2018
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
   
   
   
   
     <li class="md-nav__item">
-      <a href="../../final-word/" class="md-nav__link">
+      <a href="../../archive/2018/0x01-about-owasp/" class="md-nav__link">
         
   
   <span class="md-ellipsis">
-    Final Word
+    About OWASP
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x02-about-project/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Project
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x03-about-structure/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Structure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x04-introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c1-security-requirements/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c2-leverage-security-frameworks-libraries/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c3-secure-database/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c4-encode-escape-data/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c5-validate-inputs/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c6-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c7-enforce-access-controls/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c8-protect-data-everywhere/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Protect Data Everywhere
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c9-security-logging/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c10-errors-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Handle All Errors and Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2016/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2016
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2014/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2014
   </span>
   
 
@@ -1126,7 +1685,7 @@
 <h1 id="c8-leverage-browser-security-features">C8: Leverage Browser Security Features</h1>
 <h2 id="description">Description</h2>
 <p>Browsers are the gateway to the web for most users. As such, it's critical to employ robust security measures to protect the user from various threats. This section outlines the techniques and policies that can be implemented to bolster browser security.</p>
-<p>While we are currently focusing upon traditional web browsers, please note that there is a diverse world of other client programs out there, ranging from API clients to smart-tvs.</p>
+<p>While we are currently focusing upon traditional web browsers, please note that there is a diverse world of other client programs out there, ranging from API clients to smart-TVs.</p>
 <h3 id="opportunistic-security-and-browser-support">Opportunistic Security and Browser-Support</h3>
 <p>Instructing the web browser to enforce security measures is always opportunistic: the web application cannot verify that the browser heeds the guidance given and thus these security measures should always be seen as additional (and optional) <strong>Hardening Measures</strong> that further complicate an attacker’s life.</p>
 <p>In addition, web browsers must actually support the security guidance offered by web applications. The level of support differs between different browsers and their versions. Web sites such as <a href="https://caniuse.com">https://caniuse.com</a> can be used to check which web browser (versions) support which features. The supported security features can change over time, e.g., the X-XSS-Protection header has been removed from all major browsers; the browsers’ default behavior can change over time as seen with Referrer-Policy; and even the semantics of existing headers can change over time as seen with X-Content-Type-Options.</p>
@@ -1206,7 +1765,7 @@ <h2 id="references">References</h2>
 <li><a href="https://web.dev/articles/security-headers">Security Headers Quick Reference</a></li>
 <li><a href="https://www.w3.org/TR/fetch-metadata/">Fetch Metadata Request Headers</a></li>
 <li><a href="https://web.dev/articles/fetch-metadata">Fetch Metadata Resource Isolation Policy</a></li>
-<li><a href="https://caniuse.com/">Canisue.com</a></li>
+<li><a href="https://caniuse.com/">Caniuse.com</a></li>
 </ul>
 
 
@@ -1290,7 +1849,7 @@ <h2 id="references">References</h2>
     </div>
     
     
-    <script id="__config" type="application/json">{"base": "../..", "features": ["navigation.sections", "navigation.tracking", "navigation.path", "navigation.top", "search.suggest", "search.highlight", "content.tabs.link", "content.code.annotation", "content.code.copy"], "search": "../../assets/javascripts/workers/search.07f07601.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script>
+    <script id="__config" type="application/json">{"base": "../..", "features": ["navigation.sections", "navigation.tracking", "navigation.path", "navigation.tabs", "navigation.top", "search.suggest", "search.highlight", "content.tabs.link", "content.code.annotation", "content.code.copy"], "search": "../../assets/javascripts/workers/search.07f07601.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script>
     
     
       <script src="../../assets/javascripts/bundle.56dfad97.min.js"></script>
diff --git a/the-top-10/c9-security-logging-and-monitoring/index.html b/the-top-10/c9-security-logging-and-monitoring/index.html
index 8e13ab9..6f660ab 100644
--- a/the-top-10/c9-security-logging-and-monitoring/index.html
+++ b/the-top-10/c9-security-logging-and-monitoring/index.html
@@ -96,9 +96,7 @@
     
       
 
-  
-
-<header class="md-header md-header--shadow" data-md-component="header">
+<header class="md-header" data-md-component="header">
   <nav class="md-header__inner md-grid" aria-label="Header">
     <a href="../.." title="OWASP Top 10 Proactive Controls" class="md-header__button md-logo" aria-label="OWASP Top 10 Proactive Controls" data-md-component="logo">
       
@@ -219,6 +217,98 @@
       
         
           
+            
+<nav class="md-tabs" aria-label="Tabs" data-md-component="tabs">
+  <div class="md-grid">
+    <ul class="md-tabs__list">
+      
+        
+  
+  
+    
+  
+  
+    
+    
+      
+  
+  
+    
+  
+  
+    
+    
+      <li class="md-tabs__item md-tabs__item--active">
+        <a href="../.." class="md-tabs__link">
+          
+  
+  Current Top 10 (WIP, 2024)
+
+        </a>
+      </li>
+    
+  
+
+    
+  
+
+      
+        
+  
+  
+  
+    
+    
+      <li class="md-tabs__item">
+        <a href="../../archive/2018/0x01-about-owasp/" class="md-tabs__link">
+          
+  
+  Top 10 2018
+
+        </a>
+      </li>
+    
+  
+
+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="../../archive/2016/" class="md-tabs__link">
+        
+  
+    
+  
+  Top 10 2016
+
+      </a>
+    </li>
+  
+
+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="../../archive/2014/" class="md-tabs__link">
+        
+  
+    
+  
+  Top 10 2014
+
+      </a>
+    </li>
+  
+
+      
+    </ul>
+  </div>
+</nav>
+          
         
       
       <main class="md-main" data-md-component="main">
@@ -232,8 +322,10 @@
                     
 
 
+  
+
 
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+<nav class="md-nav md-nav--primary md-nav--lifted" aria-label="Navigation" data-md-level="0">
   <label class="md-nav__title" for="__drawer">
     <a href="../.." title="OWASP Top 10 Proactive Controls" class="md-nav__button md-logo" aria-label="OWASP Top 10 Proactive Controls" data-md-component="logo">
       
@@ -262,6 +354,8 @@
       
   
   
+    
+  
   
   
     
@@ -271,28 +365,74 @@
         
         
       
+      
+        
+      
     
     
-    <li class="md-nav__item md-nav__item--section md-nav__item--nested">
+    <li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
       
         
         
-        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1" >
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1" checked>
         
           
           <label class="md-nav__link" for="__nav_1" id="__nav_1_label" tabindex="">
             
   
   <span class="md-ellipsis">
-    Introduction
+    Current Top 10 (WIP, 2024)
   </span>
   
 
             <span class="md-nav__icon md-icon"></span>
           </label>
         
-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="false">
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="true">
           <label class="md-nav__title" for="__nav_1">
+            <span class="md-nav__icon md-icon"></span>
+            Current Top 10 (WIP, 2024)
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    
+    
+    
+      
+      
+        
+          
+          
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--section md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_1" >
+        
+          
+          <label class="md-nav__link" for="__nav_1_1" id="__nav_1_1_label" tabindex="">
+            
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_1_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_1">
             <span class="md-nav__icon md-icon"></span>
             Introduction
           </label>
@@ -388,9 +528,10 @@
     </li>
   
 
-    
-      
-      
+              
+            
+              
+                
   
   
   
@@ -399,7 +540,10 @@
     
     
       
+      
         
+          
+          
         
       
     
@@ -408,10 +552,10 @@
       
         
         
-        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" >
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_2" >
         
           
-          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="">
+          <label class="md-nav__link" for="__nav_1_2" id="__nav_1_2_label" tabindex="">
             
   
   <span class="md-ellipsis">
@@ -422,8 +566,8 @@
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           </label>
         
-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="false">
-          <label class="md-nav__title" for="__nav_2">
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_2">
             <span class="md-nav__icon md-icon"></span>
             About the Top 10
           </label>
@@ -498,9 +642,10 @@
     </li>
   
 
-    
-      
-      
+              
+            
+              
+                
   
   
     
@@ -511,7 +656,10 @@
     
     
       
+      
         
+          
+          
         
       
     
@@ -520,10 +668,10 @@
       
         
         
-        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_3" checked>
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_3" checked>
         
           
-          <label class="md-nav__link" for="__nav_3" id="__nav_3_label" tabindex="">
+          <label class="md-nav__link" for="__nav_1_3" id="__nav_1_3_label" tabindex="">
             
   
   <span class="md-ellipsis">
@@ -534,8 +682,8 @@
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           </label>
         
-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_3_label" aria-expanded="true">
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+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_3_label" aria-expanded="true">
+          <label class="md-nav__title" for="__nav_1_3">
             <span class="md-nav__icon md-icon"></span>
             The Top 10 List
           </label>
@@ -905,19 +1053,430 @@
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+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
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+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
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+  
+  
+  
+  
     
+    
+    
+      
+      
+        
       
+    
+    
+    <li class="md-nav__item md-nav__item--nested">
       
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" >
+        
+          
+          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    Top 10 2018
+  </span>
+  
+
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+          </label>
+        
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_2">
+            <span class="md-nav__icon md-icon"></span>
+            Top 10 2018
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
   
   
   
   
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-      <a href="../../final-word/" class="md-nav__link">
+      <a href="../../archive/2018/0x01-about-owasp/" class="md-nav__link">
         
   
   <span class="md-ellipsis">
-    Final Word
+    About OWASP
+  </span>
+  
+
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+
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+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x02-about-project/" class="md-nav__link">
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+  <span class="md-ellipsis">
+    About Project
+  </span>
+  
+
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+    </li>
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+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x03-about-structure/" class="md-nav__link">
+        
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+  <span class="md-ellipsis">
+    About Structure
+  </span>
+  
+
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+    </li>
+  
+
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+  
+  
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+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x04-introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
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+    </li>
+  
+
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+            
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+  
+  
+  
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+    <li class="md-nav__item">
+      <a href="../../archive/2018/c1-security-requirements/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
+      </a>
+    </li>
+  
+
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+            
+              
+                
+  
+  
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+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c2-leverage-security-frameworks-libraries/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
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+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c3-secure-database/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
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+    </li>
+  
+
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+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c4-encode-escape-data/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
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+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c5-validate-inputs/" class="md-nav__link">
+        
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+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
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+    </li>
+  
+
+              
+            
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+                
+  
+  
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+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c6-digital-identity/" class="md-nav__link">
+        
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+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c7-enforce-access-controls/" class="md-nav__link">
+        
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+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
+
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+    </li>
+  
+
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+            
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+                
+  
+  
+  
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+    <li class="md-nav__item">
+      <a href="../../archive/2018/c8-protect-data-everywhere/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Protect Data Everywhere
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c9-security-logging/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c10-errors-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Handle All Errors and Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2016/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2016
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2014/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2014
   </span>
   
 
@@ -1195,7 +1754,7 @@ <h2 id="tools">Tools</h2>
     </div>
     
     
-    <script id="__config" type="application/json">{"base": "../..", "features": ["navigation.sections", "navigation.tracking", "navigation.path", "navigation.top", "search.suggest", "search.highlight", "content.tabs.link", "content.code.annotation", "content.code.copy"], "search": "../../assets/javascripts/workers/search.07f07601.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script>
+    <script id="__config" type="application/json">{"base": "../..", "features": ["navigation.sections", "navigation.tracking", "navigation.path", "navigation.tabs", "navigation.top", "search.suggest", "search.highlight", "content.tabs.link", "content.code.annotation", "content.code.copy"], "search": "../../assets/javascripts/workers/search.07f07601.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script>
     
     
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diff --git a/the-top-10/introduction/index.html b/the-top-10/introduction/index.html
index ef98036..67b9807 100644
--- a/the-top-10/introduction/index.html
+++ b/the-top-10/introduction/index.html
@@ -96,9 +96,7 @@
     
       
 
-  
-
-<header class="md-header md-header--shadow" data-md-component="header">
+<header class="md-header" data-md-component="header">
   <nav class="md-header__inner md-grid" aria-label="Header">
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@@ -219,6 +217,98 @@
       
         
           
+            
+<nav class="md-tabs" aria-label="Tabs" data-md-component="tabs">
+  <div class="md-grid">
+    <ul class="md-tabs__list">
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+        
+  
+  
+    
+  
+  
+    
+    
+      
+  
+  
+    
+  
+  
+    
+    
+      <li class="md-tabs__item md-tabs__item--active">
+        <a href="../.." class="md-tabs__link">
+          
+  
+  Current Top 10 (WIP, 2024)
+
+        </a>
+      </li>
+    
+  
+
+    
+  
+
+      
+        
+  
+  
+  
+    
+    
+      <li class="md-tabs__item">
+        <a href="../../archive/2018/0x01-about-owasp/" class="md-tabs__link">
+          
+  
+  Top 10 2018
+
+        </a>
+      </li>
+    
+  
+
+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="../../archive/2016/" class="md-tabs__link">
+        
+  
+    
+  
+  Top 10 2016
+
+      </a>
+    </li>
+  
+
+      
+        
+  
+  
+  
+    <li class="md-tabs__item">
+      <a href="../../archive/2014/" class="md-tabs__link">
+        
+  
+    
+  
+  Top 10 2014
+
+      </a>
+    </li>
+  
+
+      
+    </ul>
+  </div>
+</nav>
+          
         
       
       <main class="md-main" data-md-component="main">
@@ -232,8 +322,10 @@
                     
 
 
+  
+
 
-<nav class="md-nav md-nav--primary" aria-label="Navigation" data-md-level="0">
+<nav class="md-nav md-nav--primary md-nav--lifted" aria-label="Navigation" data-md-level="0">
   <label class="md-nav__title" for="__drawer">
     <a href="../.." title="OWASP Top 10 Proactive Controls" class="md-nav__button md-logo" aria-label="OWASP Top 10 Proactive Controls" data-md-component="logo">
       
@@ -262,6 +354,8 @@
       
   
   
+    
+  
   
   
     
@@ -271,28 +365,74 @@
         
         
       
+      
+        
+      
     
     
-    <li class="md-nav__item md-nav__item--section md-nav__item--nested">
+    <li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
       
         
         
-        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1" >
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1" checked>
         
           
           <label class="md-nav__link" for="__nav_1" id="__nav_1_label" tabindex="">
             
   
   <span class="md-ellipsis">
-    Introduction
+    Current Top 10 (WIP, 2024)
   </span>
   
 
             <span class="md-nav__icon md-icon"></span>
           </label>
         
-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="false">
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="true">
           <label class="md-nav__title" for="__nav_1">
+            <span class="md-nav__icon md-icon"></span>
+            Current Top 10 (WIP, 2024)
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
+  
+  
+  
+  
+    
+    
+    
+      
+      
+        
+          
+          
+        
+      
+    
+    
+    <li class="md-nav__item md-nav__item--section md-nav__item--nested">
+      
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_1" >
+        
+          
+          <label class="md-nav__link" for="__nav_1_1" id="__nav_1_1_label" tabindex="">
+            
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_1_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_1">
             <span class="md-nav__icon md-icon"></span>
             Introduction
           </label>
@@ -388,9 +528,10 @@
     </li>
   
 
-    
-      
-      
+              
+            
+              
+                
   
   
   
@@ -399,7 +540,10 @@
     
     
       
+      
         
+          
+          
         
       
     
@@ -408,10 +552,10 @@
       
         
         
-        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" >
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_2" >
         
           
-          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="">
+          <label class="md-nav__link" for="__nav_1_2" id="__nav_1_2_label" tabindex="">
             
   
   <span class="md-ellipsis">
@@ -422,8 +566,8 @@
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-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="false">
-          <label class="md-nav__title" for="__nav_2">
+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_1_2">
             <span class="md-nav__icon md-icon"></span>
             About the Top 10
           </label>
@@ -498,9 +642,10 @@
     </li>
   
 
-    
-      
-      
+              
+            
+              
+                
   
   
     
@@ -511,7 +656,10 @@
     
     
       
+      
         
+          
+          
         
       
     
@@ -520,10 +668,10 @@
       
         
         
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+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1_3" checked>
         
           
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+          <label class="md-nav__link" for="__nav_1_3" id="__nav_1_3_label" tabindex="">
             
   
   <span class="md-ellipsis">
@@ -534,8 +682,8 @@
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-        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_3_label" aria-expanded="true">
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+        <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_1_3_label" aria-expanded="true">
+          <label class="md-nav__title" for="__nav_1_3">
             <span class="md-nav__icon md-icon"></span>
             The Top 10 List
           </label>
@@ -836,19 +984,430 @@
     </li>
   
 
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
     
+    
+    
+      
+      
+        
       
+    
+    
+    <li class="md-nav__item md-nav__item--nested">
       
+        
+        
+        <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" >
+        
+          
+          <label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="0">
+            
+  
+  <span class="md-ellipsis">
+    Top 10 2018
+  </span>
+  
+
+            <span class="md-nav__icon md-icon"></span>
+          </label>
+        
+        <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="false">
+          <label class="md-nav__title" for="__nav_2">
+            <span class="md-nav__icon md-icon"></span>
+            Top 10 2018
+          </label>
+          <ul class="md-nav__list" data-md-scrollfix>
+            
+              
+                
   
   
   
   
     <li class="md-nav__item">
-      <a href="../../final-word/" class="md-nav__link">
+      <a href="../../archive/2018/0x01-about-owasp/" class="md-nav__link">
         
   
   <span class="md-ellipsis">
-    Final Word
+    About OWASP
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x02-about-project/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Project
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x03-about-structure/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    About Structure
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/0x04-introduction/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Introduction
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c1-security-requirements/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C1: Define Security Requirements
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c2-leverage-security-frameworks-libraries/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C2: Leverage Security Frameworks and Libraries
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c3-secure-database/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C3: Secure Database Access
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c4-encode-escape-data/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C4: Encode and Escape Data
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c5-validate-inputs/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C5: Validate All Inputs
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c6-digital-identity/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C6: Implement Digital Identity
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c7-enforce-access-controls/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C7: Enforce Access Controls
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c8-protect-data-everywhere/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C8: Protect Data Everywhere
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c9-security-logging/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C9: Implement Security Logging and Monitoring
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/c10-errors-exceptions/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    C10: Handle All Errors and Exceptions
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+              
+                
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2018/final-word/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Final Word
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+              
+            
+          </ul>
+        </nav>
+      
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2016/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2016
+  </span>
+  
+
+      </a>
+    </li>
+  
+
+    
+      
+      
+  
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../archive/2014/" class="md-nav__link">
+        
+  
+  <span class="md-ellipsis">
+    Top 10 2014
   </span>
   
 
@@ -1021,7 +1580,7 @@ <h2 id="security-controls">Security Controls</h2>
     </div>
     
     
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+    <script id="__config" type="application/json">{"base": "../..", "features": ["navigation.sections", "navigation.tracking", "navigation.path", "navigation.tabs", "navigation.top", "search.suggest", "search.highlight", "content.tabs.link", "content.code.annotation", "content.code.copy"], "search": "../../assets/javascripts/workers/search.07f07601.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script>
     
     
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diff --git a/v3/en/0x04-introduction b/v3/en/0x04-introduction
new file mode 100644
index 0000000..eda83a7
--- /dev/null
+++ b/v3/en/0x04-introduction
@@ -0,0 +1,15 @@
+
+<!doctype html>
+<html lang="en">
+<head>
+    <meta charset="utf-8">
+    <title>Redirecting...</title>
+    <link rel="canonical" href="../../archive/2018/0x04-introduction/">
+    <meta name="robots" content="noindex">
+    <script>var anchor=window.location.hash.substr(1);location.href="../../archive/2018/0x04-introduction/"+(anchor?"#"+anchor:"")</script>
+    <meta http-equiv="refresh" content="0; url=../../archive/2018/0x04-introduction/">
+</head>
+<body>
+Redirecting...
+</body>
+</html>
diff --git a/v3/en/c1-security-requirements b/v3/en/c1-security-requirements
new file mode 100644
index 0000000..5079941
--- /dev/null
+++ b/v3/en/c1-security-requirements
@@ -0,0 +1,15 @@
+
+<!doctype html>
+<html lang="en">
+<head>
+    <meta charset="utf-8">
+    <title>Redirecting...</title>
+    <link rel="canonical" href="../../archive/2018/c1-security-requirements/">
+    <meta name="robots" content="noindex">
+    <script>var anchor=window.location.hash.substr(1);location.href="../../archive/2018/c1-security-requirements/"+(anchor?"#"+anchor:"")</script>
+    <meta http-equiv="refresh" content="0; url=../../archive/2018/c1-security-requirements/">
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+Redirecting...
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diff --git a/v3/en/c10-errors-exceptions b/v3/en/c10-errors-exceptions
new file mode 100644
index 0000000..460ff19
--- /dev/null
+++ b/v3/en/c10-errors-exceptions
@@ -0,0 +1,15 @@
+
+<!doctype html>
+<html lang="en">
+<head>
+    <meta charset="utf-8">
+    <title>Redirecting...</title>
+    <link rel="canonical" href="../../archive/2018/c10-errors-exceptions/">
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