=== Random User IDs ===
Contributors: DaveFX
Donate link: https://paypal.me/davefx
Tags: security, user ids
Requires at least: 3.1
Tested up to: 6.8.0
Stable tag: 20201115.1
License: GPLv3
License URI: http://www.gnu.org/licenses/gpl-3.0.html
This WordPress plugin randomizes the user_id for the user created on WordPress setup, removing one potential attack factor from the site.

== How it works ==

Once activated, the plugin will immediately replace the ID for the default admin user (with user ID 1). By default, the plugin will use random user IDs between 1 and 4503599627370495 (to ensure compatibility with Javascript code using the user ID).

All newly created users from that moment will be generated with a random user ID in the defined range.

== How to customize the range for new user IDs ==

You can customize the range used by the plugin for the random generated user IDs by using the WordPress filters dfx_random_user_id_max_id and dfx_random_user_id_min_id.

For example, if you want to have all your user IDs between 1000 and 9999 you can add the following lines to your theme’s functions.php file:

`function set_dfx_max_user_id( $default_max_id ) {`
`    return 9999;`
`}`
`add_filter( 'dfx_random_user_id_max_id', 'set_dfx_max_user_id' );`
` `
`function set_dfx_min_user_id( $default_max_id ) {`
`    return 1000;`
`}`
`add_filter( 'dfx_random_user_id_min_id', 'set_dfx_min_user_id' );`


Probably, you’ll want to add these lines to your code before activating the plugin, so your new random main admin user ID is inside your desired range.

== Changelog ==

= 20201115 =

* Adding new filter dfx_random_user_id_min_id to customize the minimum allowed user ID number

= 20190125 =

* Adding new filter dfx_random_user_id_max_id to customize the maximum allowed user ID number

= 20170720 =

* Updating documentation to reflect changes incoming with WordPress version 4.9.

= 20170526 =

* Now the maximum generated ID is Javascript's MAX_SAFE_INTEGER / 2, so we shouldn't generate problems with the Javascript layer.