Authorizer limits login attempts, restricts access to specified users, and authenticates against external sources (e.g., Google, LDAP, or CAS).
A Plugin to lock down the whole site to prevent public access.
Login plugin allows to create easy custom login and registration. With this WordPress login plugin use reCaptcha, pop-up and advanced design options.
iRemoteWP plugin allows you to easily and remotely manage & backup all your WordPress based sites from one dashboard on iremotewp.com.
Enables LDAP for user authentication, password management and role management.
Sends an email with useful data to the administrator each time a user successfully logs in or fails to connect.
This Plugin allows developers to integrate Latch on his/her WordPress service.
Enables to login with WordPress user e-mail address.
Next Active Directory Integration allows WordPress to authenticate, authorize, create and update users against Microsoft Active Directory.
This plugin protects your registered user base by preventing registration with a disposable email addresse (like the ones provided by mailinator).
A feature plugin for core to provide Two-Factor Authentication.
The bookmark to login nobody but you. Simple and secure.
Adds a field to the user's profile for redirection upon login.
With this plugin, you can ask users to authenticate before they can see your WordPress site.
Secure login with captcha, two factor authentication and brute force attack protection. Temporary and permanent blacklists for more login security
Maven Member™ lets you protect pages, posts and categories using flexible roles that you can define.
Integrate your WordPress site with Gigya
A plugin to authenticate users migrated from Joomla/Mambo to WordPress.
Whitelist User IP addresses. If a user logs in from an unknown IP the plugin sends an email to the user and optionally the admin with a one-time key.
Plugin adds extra graphic password for your administrator account and adds a higher level of security to your website.
The plugin is a JASIG CAS Client. It performs CAS authentication and autorization for WordPress.
Login with any social provider you can think of with this plugin and the Auth0 dashboard.
Authenticates users through LDAP.
Install this plugin on unlimited sites and manage them all from a central dashboard.
Adds AuthPro.com remotely hosted service support to your WordPress website.
Allows you to setup single sign on capabilities between your site and Freshdesk. Create's user accounts on the fly, automatically logs in users.
Mighty-CAPTCHA add an authentication with Google reCAPTCHA technology to login, comment, and register form, with API keys which delivered by Google.
Hides logo in WordPress login screen to make it clearer.
IPBlock offers powerful protection against bruteforce login attacks. Works in 2 modes, allowing you to set your own blocking scheme.