{"id":"iam-request-evaluation-three-steps","text":"AWS evaluates principal requests in three steps: (1) authentication, (2) request context processing, (3) policy evaluation against context — some services like S3 can skip authentication for anonymous requests.","truth_value":"IN","source":"entries/2026/03/08/iam-policy-evaluation.md","source_url":"","source_hash":"49f98ce70499c3a4","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"iam-request-evaluation-three-steps","truth_value":"IN","reason":"premise"}]}}