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AWS has four distinct mechanisms to restrict permissions — and most engineers confuse them. This article breaks down SCPs, RCPs, Permission Boundaries and Session Policies: what each one limits, where it sits in the evaluation engine, and when to use which.

Dormant IAM credentials are not harmless — they are a ticking time bomb. I built IAM Cleanup, a serverless tool that automatically detects, tags, and removes unused IAM roles and policies before they become a liability.

Three fundamental misconceptions about AWS security that create dangerous blind spots in your security posture.