Universal Second Factor

Universal 2nd Factor (U2F) is an authentication standard created by the FIDO Alliance that simplifies and strengthens two-factor authentication for businesses and consumers. In addition to being easy to use, U2F stops phishing, one of the most common credential-stealing attacks.

Universal 2nd Factor consists of two components, the U2F Server and the U2F Authenticator. Duo Security’s U2F Server enrolls and authenticates any FIDO Ready™ U2F Authenticator, which currently comes in the form of a USB hardware device.

Most U2F Authenticators don’t require any special drivers. All you need is a supported web browser, such as Google Chrome, and a computer running Windows, Mac OS X, Linux, or Chrome OS.

View our video to learn more about the U2F authentication standard, supported by Duo Security.

The FIDO (Fast IDentity Online) Alliance is an industry group established to standardize authentication technology and devices. Duo Security joins Google, Yubico and other FIDO Alliance members to bring this secure method to businesses and consumers.