AWS IAM Security Best Practices for 2026
IAM is the AWS control plane. Almost every public AWS breach traces back to an IAM misconfiguration — over-permissive roles, leaked access keys, or trust policies that accidentally trust the entire internet. This is the modern playbook. The Foundation Lock the Root Account The root user has powers no other principal can have (closing the account, modifying the support plan). Treat it like nuclear codes: ...





