Universal 2nd Factor (U2F)

U2F is a strong industry standard for two-factor authentication (2FA), created by the FIDO (Fast IDentity Online) Alliance. Using a U2F authenticator (a physical USB device) plugged into their laptop or desktop, users can tap it to complete 2FA. The U2F device protects private keys with a tamper-proof component known as a secure element (SE), which can help mitigate the effects of phishing.