Several types of 2FA methods are available, each with its own set of advantages and disadvantages:
1. SMS-based 2FA: This involves sending a code to the user's mobile phone. 2. Authenticator Apps: Applications like Google Authenticator or Authy generate time-based, one-time passwords (TOTP). 3. Hardware Tokens: Physical devices that generate a unique code. 4. Biometric Authentication: Uses fingerprint, facial recognition, or other biometric data. 5. Email-based 2FA: A code is sent to the user's email address.