We protect your accounts from hackers, even if they steal your passwords.
This plugin Adds Crazy Additional Password Protection and Security to your blog.
A Plugin to lock down the whole site to prevent public access.
Google Authenticator for your WordPress blog.
Redirect users to different locations after logging in and logging out.
This plugin protects your registered user base by preventing registration with a disposable email addresse (like the ones provided by mailinator).
wSecure hides admin URL so that default URL will no longer bring up the admin page. Only people who enter the secret key will be able to access admin
Implementation of Mozilla Persona (BrowserID) for WordPress
WordPress Auth using Google Authenticator is a simple plugin which allows authorization with Google Authenticator tokens.
This plugin let you use the swekey authentication USB dongle to secure your login.
Security against brute force attacks by tracking IP, name, password; requiring very strong passwords. Idle timeout. Maintenance mode lockdown.
Use the SecSign ID two-factor authentication on your WordPress site to enable easy and secure login using your iPhone or Android phone.
Add membership management and secure authentication by SPIRAL® into your WordPress site.
An authentication framework that handles authorization with external web services.
Synchronize your WordPress users with a htusers file for authentication outside of WordPress
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