Backup Codes vs Two-Factor Authentication (2FA)

Backup codes are one-time emergency access codes provided when setting up two-factor authentication, used to regain account access if your primary 2FA device is lost or unavailable.

Security method requiring two different forms of verification to access an account—typically something you know (password) and something you have (phone, authenticator app, or hardware key)—providing critical protection against unauthorized access even if passwords are compromised. Also known as: 2FA.