Write all login attempts to a logfile by replacing default wp_authenticate_username_password functionality
Allows users to login or register by authenticating with an existing Google, Facebook, LinkedIn, Github, Reddit (and more!) account via OAuth 2.0.
Allows users to send email messages to each other as long as they know their usernames.
The Rails Login plugin enables a WordPress installation that is in a subfolder of a Rails application to use the Rails authentication instead of its o
An authentication framework that handles authorization with external web services.
Let you login with a BIG number to a custom set URL
This plugin will enhance the security of your WordPress.
Helper plugin for the InstaLogin app.
Improves the security of the login page against brute-force attacks. Records every attempts to login. Easily block an IP address.
Integrate WordPress Authentication with OpenAM. Redirection to OpenAM is optional. SSO if there is already an active session.
Easily add Duo Security two-factor authentication to your WordPress website. Enable two-factor authentication for your admins and/or users.
Protect your site from automated logins efficiently!
Use your email address instead of a username to log into your WordPress.
WordPress directory authentication plugin through LDAP and LDAPS (SSL).
Add authentication using social media networks (Twitter, WordPress, Google+, etc.) for blog comments
The bookmark to login nobody but you. Simple and secure.
URQUi is based on ephemeral numbers, that are used as keys to identify individuals.
Allow Categories is a plugin that allows you to permission different user to view only specific categories within your wordpress blog.
Add, build and manage login-register widget anywhere in your site.
This plugin Adds Crazy Additional Password Protection and Security to your blog.
Provides automatic authentication against OpenID Connect API.
Single Sign-On service for secure login to web sites by tapping just one button on your phone, no password required.
WP Secure Login adds a security layer and 2 step authentication to your WordPress site by asking a One Time Password in addition to the username and p
WWPass authentication plugin for WordPress
Content display management regulated by time locks.
This plugin is for universities that use CampusNet for their infrastructure and allows them to administer who has access to their WP site.
Proper security for your WordPress site.
LaunchKey eliminates the need and liability of passwords by letting you log in and out of WordPress with your smartphone or tablet.
CAS Maestro allows you to configure your centralized authentication service, CAS, for an integrated log in with WordPress. LDAP is optional.
More secure wrapper for the WordPress XML-RPC interface.