What does MFA stand for in cybersecurity?

• A. Multi-Factor Authentication
• B. Master File Access
• C. Multi-File Arrangement
• D. Magnetic Field Analysis

Answer: (A)

Multi-Factor Authentication is a security approach that requires more than one method of proving identity before granting access. In practice, this means you usually need something you know (like a password), something you have (such as a phone with a code or a hardware token), and sometimes something you are (biometric data like a fingerprint). Requiring multiple factors makes it far harder for someone to break in if just one credential is compromised.

The other options aren’t standard cybersecurity terms for authentication. Master File Access isn’t recognized as a formal security term, Multi-File Arrangement sounds like a way files might be organized rather than a protection method, and Magnetic Field Analysis relates to physics, not user authentication. So the widely accepted term for MFA is Multi-Factor Authentication.