Secure two-factor that people love to use: strong authentication without passwords or tokens; single sign on/off; magical user experience.
Sovay secures your identity and your WordPress site logins. Authenticate once and securely access all your sites — without password hassles.
Add Two Factor Authentication for WordPress using your smartphone or tablet and the Free Tokenizer service (tokenizer.com).
Single Sign-On service for secure login to web sites by tapping just one button on your phone, no password required.
LaunchKey eliminates the need and liability of passwords by letting you log in and out of WordPress with your smartphone or tablet.
This plugin enables CryptoPhoto authentication for WordPress logins.
Secure Login using Voice Biometrics for your WordPress site.
Securio WP-Login allows you to secure the wordpress login by tracking brute force attempts and by allowing the enabling of Multi-Factor Authentication