Amy Green

Login errors in WordPress can be used by hackers to guess whether they entered wrong username or password.
This is a lightweight plugin that will hide those login errors and make your WordPress login more secure.
Features: 
* No annoying settings to deal with. 
* Install and automatically hide login errors. 
* Lightweight with only a few lines of code.

Hide Login Errors

Login errors in WordPress can be used by hackers to guess whether they entered wrong username or password.

BuddyDev

Brajesh Singh

WordPress Username availability checker for WordPress & BuddyPress checks for the username availability on new user registration screens. 
It assist users & site admins by notifying them using ajax whether the username they entered is available or not.
<h4>Features</h4>
<ul>
<li>Checks for username availability in WordPress Admin New User screen</li>
<li>Checks for username availability on WordPress standard registration page</li>
<li>Checks for availability on BuddyPress registration page.</li>
</ul>
For screenshots & more details, please visit <a href="http://buddydev.com/plugins/bpdev-username-availability-checker/" title="Plugin page" rel="nofollow ugc">BuddyDev Username Availability Checker plugin page</a>
Free & paid supports are available via <a href="http://buddydev.com/support/forums/" title="BuddyDev support forums" rel="nofollow ugc">BuddyDev Support Forum</a>. Please Use BuddyDev support forums for your support requests. We may not be able to keep an eye over WordPress plugin support forum.

WordPress Username Availability Checker

WordPress Username availability checker checks if a username is available or not.

Hide Login Errors vs WordPress Username Availability Checker