What is identity proofing?
A CISSP practice question covering Domain 5: Identity and Access Management (IAM). Try answering before reading the explanation below.
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Why "Verifying a user's claimed identity at registration using documents and checks" is the right answer
Identity proofing happens at enrollment — driver's license verification, knowledge-based questions, biometric capture, etc. NIST 800-63A defines IAL1/2/3 levels. Authentication (separate from proofing) confirms the proofed identity at later sessions.
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