This rule identifies when the deletion protection feature of an AWS RDS database instance or cluster is modified to be disabled. Deletion protection is a safeguard that prevents accidental deletion of database resources, hence removing this feature can lead to potential data loss if unauthorized individuals gain access to the AWS environment. The rule is structured to trigger alerts when specific modifications to the deletion protection settings are detected within AWS CloudTrail logs, indicating possible malicious activity to erase important data. The rule suggests investigation steps that include identifying who made the change, examining the context of the modification, and evaluating the sensitivity of the data involved. It also recommends responding to unauthorized changes by reversing them, enhancing monitoring, and potentially initiating an incident response process if a data breach is confirmed.