Authentication answers the question: “Who are you?” It usually uses a passwordIn general, a password is an arbitrary string of characters including letters, digits, or other symb... More, 2FAVícefázové ověření (též vícefaktorové, anglicky multi-factor authentication) je v informatice proces... More, security keyA small physical key for safer login, often using USB, NFC, or Bluetooth. More, or biometrics. If authentication fails, an attacker may log in as someone else.
Why it matters: It is the first gate to an account, but alone it does not decide what you may do.
