Control: AWS > KMS > Key > Policy Statements > Approved

Configure policy statements for KMS keys. This control defines whether to verify if the key policy statements are approved, as well as the subsequent action to take on unapproved statements.

If set to Enforce: Delete unapproved, any unapproved statements will be revoked from the key's policy.

Please note that if the policy is set to Enforce: Delete unapproved and the new key policy does not contain statements that allow the Guardrails role to continue to manage the key's policy, this control will fail to apply the new policy due to a best practice from AWS that prevents key administrators from removing their own access.