Top 5 Duo Security alternatives

Last updated: April 20, 2015
Duo Security
Two-factor authentication done right. Duo Security lets your users use their mobile phones to secure their logins, protecting your company from account takeover. Duo’s solution is cloud-based, which means there's no software to install, and no server to set up. Our patented technology and drop-in integrations enable you to seamlessly integrate Duo into your existing application login workflow.
The best Duo Security alternatives:


Google Authenticator


Google Authenticator generates 2-step verification codes on your phone. Enable 2-step verification to protect your account from hijacking by adding another layer of security. With 2-step verification signing in will require a code generated by the Google Authenticator app in addition to your account password.

Authy


Strong Authentication You'll Actually Enjoy. We make the best rated Two-Factor Authentication smartphone app for consumers, a Rest API for developers and a strong authentication platform for the enterprise.

Toopher


Toopher defeats online fraud using the location-awareness of a mobile device to automatically verify a user is where their identity is being used. The phone doesn’t even leave your pocket.

YubiKey


YubiKey enables strong, easy-to-use and affordable two-factor authentication with one-time passwords. Works instantly, no need to re-type pass codes from a device. Identified as a USB-keyboard, no client software or drivers needed