2FaktorAuthentifizierung
2FaktorAuthent... commonly refers to two-factor authentication (2FA), an access control method that requires users to present two distinct types of evidence before granting access. Typically combined with a password (something the user knows), 2FA adds a second factor drawn from something the user has (a token or device) or something the user is (biometric data). The goal is to reduce the risk of account compromise when one factor is stolen or guessed.
Common implementations include time-based one-time passwords (TOTP) generated by authenticator apps, SMS-delivered codes, push notifications, hardware
Benefits of 2FA include stronger protection against phishing, credential stuffing, and brute-force attacks. However, not all
Best practices prioritize phishing-resistant standards (FIDO2/U2F), secure enrollment and recovery processes, and fallback options that do