BeCuriouzLearn something new every day
The #1 AWS security mistake that even senior engineers make
💡 Always follow least privilege. Use IAM Access Analyzer to auto-generate precise policies from actual usage.
The most common AWS security mistake? Overly permissive IAM policies. It's tempting to slap "Effect": "Allow", "Action": "", "Resource": "" on a role just to get things working. But this is like giving everyone in your office the master key.
AWS calls it the Principle of Least Privilege: every role should have exactly the permissions it needs, and nothing more. Start restrictive and add permissions as needed.
The easiest way to get this right? Use IAM Access Analyzer. It looks at your CloudTrail logs to see which permissions are actually being used, and generates a policy with only those. You go from a wide-open policy to a precise one with zero guesswork.