This detection rule is designed to monitor and respond to changes in the state of AWS Key Management Service (KMS) Customer Managed Keys (CMKs), specifically focusing on events where keys are either disabled or scheduled for deletion. It leverages AWS CloudTrail logs for security monitoring, identifying potential risks relating to data loss enforcement through KMS key operations. The essence of the detection logic revolves around the API calls 'DisableKey' and 'ScheduleKeyDeletion'. If a key is disabled, this might indicate operational changes impacting availability, while key deletion represents a critical risk of irreversible data loss. To ensure proper alerting, the rule checks specific attributes including the user agent, source IP, event name, and various resource identifiers to ascertain compliance and operational integrity against sensitive operations involving CMKs. This rule emphasizes the importance of such encryption controls in protecting cloud-stored sensitive data from accidental or malicious deletion actions, providing actionable insights for incident response teams.