Michael

Provides means to reset all or selectable passwords (roles, users) and/or to delete (the related) sessions, to define a role-based password expiry, to renew your security KEYs & SALTs and to define & monitor your required password complexity/strength. 
Upon password reset, the related users will be informed by eMail. The eMail text can be edited easily through this plugin. 
When the password expiry function is set, users with the related roles will be required to renew their password upon login, once expired. 
When a certain password strength/complexity has been set, the password strength will be monitored and related hints will be displayed accordingly. 
This plugin is self explanatory and can be accessed through the users menu.
Inspired by: Joe Sexton (PW-Check with Regular Expressions and related basic functions structure) 
Inspired by: andymoyle (Plugin “Emergency password reset V6.1” providing this as a kind of ‘brute force’ functionality) 
Inspired by: Miller Media (Plugin “Expire User Passwords”, providing some basic ideas of functionality but in conflict with the plugin ‘Theme My Login’)

Emergency Management

Handle all security topics: Reset passwords, delete sessions, define role-based password expiries, renew security KEYs & SALTs, define & monit …

ezraverheijen

Lightweight plugin to add some extra security to WordPress. 
WP Auto Salts will renew the security salts and keys in wp-config.php on a weekly interval.
NOTE: Make sure the keys and salts in your wp-config.php are between the original markers <code>/**#@+</code> and <code>/**#@-*/</code> or between <code># BEGIN WP Auto Salts</code> and <code># END WP Auto Salts</code> (on new lines) or WP Auto Salts won’t work.
Please keep in mind that WP Auto Salts is still beta software. 
If you have any issues using WP Auto Salts, find a bug or have an idea to make the plugin even better then please <a href="https://github.com/ezraverheijen/wp-auto-salts" rel="nofollow ugc">help to improve WP Auto Salts</a>. 
If you don’t report it, I can’t fix it!

WP Auto Salts

Renews the security keys and salts in wp-config.php on a weekly schedule.

Emergency Management vs WP Auto Salts