Which statement about multi-factor authentication is true?

Which statement about multi-factor authentication is true?

• A. MFA uses a single password.
• B. MFA requires two or more verification methods.
• C. MFA is only used for hardware security.
• D. MFA is optional and not useful.

Answer: (B)

Multi-factor authentication means proving your identity with at least two verification methods from different categories. These methods can be something you know (a password), something you have (a code from a phone app or a hardware token), or something you are (biometric data like a fingerprint). Using multiple factors helps because even if one factor is compromised, an attacker still needs another factor to gain access. That’s why the true statement is that MFA requires two or more verification methods. It isn’t limited to hardware, isn’t just a single password, and isn’t optional or useless in practice.

Multi-factor authentication means proving your identity with at least two verification methods from different categories. These methods can be something you know (a password), something you have (a code from a phone app or a hardware token), or something you are (biometric data like a fingerprint). Using multiple factors helps because even if one factor is compromised, an attacker still needs another factor to gain access. That’s why the true statement is that MFA requires two or more verification methods. It isn’t limited to hardware, isn’t just a single password, and isn’t optional or useless in practice.