What is U2F?
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.
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