Multi-Factor Authentication

Definitions

1. Authentication requiring two or more independent verification factors: something you know (password), something you have (phone/key), something you are (biometric). The generalized form of 2FA.

   In plain English: Requiring more than just a password to log in — like a password plus a code texted to your phone. Even if someone steals your password, they still can't get in without the second factor.

Related Terms

• Brute Force
• Credential Stuffing
• Two-Factor Authentication
• JWT
• TOTP
• OAuth
• Zero Trust
• OTP
• API Key vs Token
• 2FA Fatigue
• Brute Force Protection
• Login Attempt
• Remote Access
• Credential
• Credential Provider