Pascal Meunier

This plugin is meant to be an update on the available “Disable Password Reset” plugin available <a href="https://wordpress.org/extend/plugins/disable-password-reset/" rel="ugc">here</a>.
This version can remove more deeply the password reset mechanism. Used for high-security purposes ONLY. The password can only be changed in the database directly if activated.
Features :
<ul>
<li>Remove Input Field in Admin Area</li>
<li>Remove Reset Link in Login Dialog</li>
<li>Remove Reset Link in Login Error (notice)</li>
</ul>
There is no option for this plugin right now but I’m planning to add some in the future. Also, no multilingual support for now, but planned.
All comments are welcome.

Disable Password Reset Extended

This plugin is used to completely disable the built-in password reset feature in WordPress. Used for high-security purpose ONLY.

Dugonja

This plugin will enhance security of your WordPress site by disabling password reset function over email of WordPress. 
Use with caution since otherwise if you forgot your user password you will need to reset the password directly in the database with phpmyadmin or similar tool. 
Adittionally this plugin will hide notice which say what is wrong “password” or “username” on WordPress login page.

Disable Password Reset

Enhance security of your blogs by preventing password reset over email function.

Disable Password Reset Extended vs Disable Password Reset