You are leading a security-hardening project for your company's internal web applications. Management has asked you to deploy multifactor authentication (MFA) for all employee logins to comply with industry guidance. Which combination of authentication factors would satisfy MFA requirements?
Multifactor authentication (MFA) requires at least two authentication factors taken from different categories: something you know (for example, a password), something you have (for example, a security token or smart card), or something you are (for example, a biometric such as a fingerprint). Combining a password (something you know) with a fingerprint scan (something you are) meets this requirement. The remaining options pair factors from the same knowledge category, so they do not constitute MFA.
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What are the three categories of authentication factors?
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Why is a password and PIN code combination not considered MFA?
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How does a fingerprint scan qualify as a unique authentication factor?