Multi-factor authentication typically involves how many different forms of evidence (or factors) for verifying a user's identity?
- Four factors
- One factor
- Three factors
- Two factors
Multi-factor authentication typically involves two or more different forms of evidence (factors) for verifying a user's identity. These factors can include something the user knows (password), something the user has (smart card or mobile device), and something the user is (biometric data like fingerprints).
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