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MediumElastic detection rulesElastic

AWS IAM Account Password Policy Deleted

Identifies deletion of the AWS account password policy via DeleteAccountPasswordPolicy. The account password policy enforces minimum password requirements (length, complexity, rotation, and reuse) for all IAM users…

Description

Identifies deletion of the AWS account password policy via DeleteAccountPasswordPolicy. The account password policy enforces minimum password requirements (length, complexity, rotation, and reuse) for all IAM users in the account. Deleting it removes those requirements account-wide, weakening authentication and easing follow-on credential-based attacks. This is an account-level change that legitimately occurs only during deliberate administration, so its deletion by an unexpected principal warrants review.

Detection logic

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Detection requirements

Platform
IaaSIdentity ProviderLinuxmacOSNetwork DevicesOffice SuiteSaaSWindows

The rule states no platform. This is derived from the ATT&CK technique it maps to.

Log source category
event_index

Known benign triggers

  • Identity and platform teams or infrastructure-as-code may delete or replace the account password policy during governance changes. Verify the principal in `aws.cloudtrail.user_identity.arn` against approved change records, and confirm whether a replacement policy was applied shortly after. Known administration roles and automation can be excluded after validation.

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