Manual IAM Policy Reviews Cost Teams 48+ Hours a Year and Miss Critical Flaws

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A software engineer at DEV Community measured the time their team spent on manual AWS Identity and Access Management (IAM) policy reviews and found the results alarming. A thorough single-policy review takes 10 to 15 minutes, adding up to roughly 48 hours per year for a four-person engineering team under normal conditions. Human fatigue during repetitive structured-data review allows serious security misconfigurations to slip through, such as unconditioned iam:PassRole grants, overly broad wildcard resources, and missing aws:SourceArn conditions on Lambda permissions. The problem worsens under time pressure, with reviewers often approving policies in under two minutes during high-stress situations like Friday deployments. Switching to an automated-first review approach reduced per-policy review time from 10–15 minutes to around 30 seconds while improving detection of subtle policy flaws.

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