Knowledge Factor
An authentication factor based on something you know, such as a password, PIN, or answer to a security question, used to verify identity. It is one of the three classic factor categories alongside possession and inherence.
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Related Lessons
8 lessons cover this conceptIdentity, Accounts, and the Identity Lifecycle
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Authentication Factors and Modern Authentication
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Directory Services and Identity Infrastructure
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Authorization Models: RBAC, ABAC, and Beyond
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Privileged Access Management
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Identity ATT&CK Patterns and Defender Signals
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Security Purpose and Defensive Outcomes
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Confidentiality, Integrity, and Availability
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