Allows WordPress to provide and consumer OpenIDs for authentication of users and comments.
Instantly turn your WordPress installation into a private corporate intranet
Instant account security with effortless, email-based two-factor authentication; optional mobile app for more security; no tokens.
WP Smart Security is a comprehensive and easy to use WordPress security plugin. It gives you over 50+ ways to secure and protect your WordPress site.
Плагин позволяет использовать аккаунты Вконтакте, Yandex, Google, OpenID и тп., для авториза
Authy is the easiest and fastest way to add strong 2 Factor Authentication to your WordPress blog.
Improves the security of the login page against brute-force attacks. Records every attempts to login. Easily block an IP address.
WordPress directory authentication plugin through LDAP and LDAPS (SSL).
Change wp-login.php to anything you want while having a safe bruteforce attack free website.
Changes the cookie default path to / (i.e. the whole domain.com not just domain.com/blog) with an option to go across subdomains
Use an external authentication source in WordPress.
Allows WordPress to externalize user authentication and account creation to a Shibboleth Service Provider.
Configure WordPress Login Timeout through UI (User Interface).
Allow Categories is a plugin that allows you to permission different user to view only specific categories within your wordpress blog.
Allows users to login or register by authenticating with an existing Google, Facebook, LinkedIn, Github, Reddit (and more!) account via OAuth 2.0.
Adds an extra layer of security to your WordPress Account. Same as Google 2-step verification.
Social Login by Janrain
Login by Auth0 provides improved Username/password login, Passwordless login, Social login and Single Sign On for all your sites.
IP Based Login allows you to directly login from an allowed IP.
This plugin protects your registration, login and comment forms against spambots with a simple math question.
Enhanced Login Security for Your WordPress blog.
Active Directory/LDAP Login for intranet wordpress sites using credentials stored in Active Directory, OpenLDAP and other LDAP. ACTIVE SUPPORT.
Plugin to integrate WordPress or WordPressMU with existing CAS architectures. Based largely on Stephen Schwink's CAS Authentication plugin.
Simple and cool login widget for your WordPress! AJAX, support SSL, show avatar, profile button, register and lost password forms...
Adds Graphic Captcha Protection field for login, registration, lost password, comments pages. Perfect antispam solution for your website.
WordPress Security Plugin - Perform over 23 Basic Security Activities for your blog and get a free malware scan at the same time! See more details at
CAS Maestro allows you to configure your centralized authentication service, CAS, for an integrated log in with WordPress. LDAP is optional.
Adds a simple, invisible to the user check to the login page that rejects all bots but lets legitimate users in. Drastically increases performance.
More secure wrapper for the WordPress XML-RPC interface.
Social Login plugin allows you to let customers associate their social (Facebook and Google+) profiles with your ecommerce site.