Disable Password Reset for Selected WordPress Users
Want to keep users from changing their WordPress passwords? There’s a new plugin that will give you control over this on a user-by-user basis.
The settings for this plugin are under the “Personal Options” section of each user’s profile page. Simply use the checkbox to disable password reset for the user:
If used with the administrator user name, it can actually help to keep your WordPress site a little safer from hackers.
Download the Prevent Password Reset plugin for free from the repository.