In short
Identity and Access Management controls who can do what in a system — the principle of least privilege means granting only the minimum permissions needed, never broad access 'just in case'.
How to learn this
- 1Audit a hypothetical IAM policy and identify any overly broad permissions.
- 2Practice writing a least-privilege IAM policy scoped to a specific task.
- 3Learn why 'admin access for everyone' is a common but serious security anti-pattern.
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