The plugin Limit Attempts allows you to limit rate of login attempts by the ip, and create whitelist and blacklist.
Edwiser Bridge integrates WordPress with Moodle LMS & provides an easy option to import and sell Moodle courses using WordPress.
Integrate the Interakt all in one customer engagement platform with your WordPress web app.
phpBB/vBulletin-esque statistics for your bbPress Forum - show off just how active your forum is with additional statistics and user tracking!
Encourage the use of strong passwords by helping users generate them easily.
Prevents users from staying logged into the same account from multiple places.
Just another DD plugin. Manage your roles and capabilities easy. See who's online and track the history.
Efficient many-to-many connections between posts, pages, custom post types, users.
This plugin sends mail to registered users.
The most powerful user, role, and capability management plugin for WordPress.
Allows an admin (or capable user) to edit the author slug of a user, and change the author base.
Forces privileged users to set a strong password.
Send customisable emails to your users for different WordPress notifications.
This plugin is a small and simple Users Statistics and Comments Statistics plugin for WordPress.
The Wordfence WordPress security plugin provides free enterprise-class WordPress security, protecting your website from hacks and malware.
Avatar Manager for WordPress is a sweet and simple plugin for storing avatars locally and more. Easily.
This plugin allows you to implement Google Captcha (reCAPTCHA) into web forms.
This plugin for wordpress generate a list of users of the current wordpress site according to a user level range. Steve Maranda
An addon for the Affiliates Manager plugin to sign up affiliates to your Mad Mimi list
New User Approve allows a site administrator to approve a user before they are able to login to the site.
s2Member®—a powerful (free) membership plugin for WordPress®. Protect members only content with roles/capabilities.
A shortcode for displaying paginated lists of users.
Security against brute force attacks by tracking IP, name, password; requiring very strong passwords. Idle timeout. Maintenance mode lockdown.
Manage Directory listings. Provided front-end form, google map support, listing, filtering.
Allows BuddyPress administrators to block users indefinitely, or for a specified period of time.
Piklist is the most powerful framework available for WordPress. Easy for beginners... built for developers. Piklist helps you build things - fast.
Generate time-sensitive, signed, and secure auto-login links for your Users.
LH Profile Page is a WordPress plugin that enables users to change their user data on the front end of the website
Adds a new "Admin" user role between Administrator and Editor. Perfect for clients and those who know just enough to be dangerous.
Add a sortable column to the users list to show registration date.