A company made a configuration change to an Amazon EC2 Auto Scaling group that hosts...

CloudTrail records management write events, and Amazon EventBridge can match those events in near real time. The correct solution is to create an EventBridge rule that filters for Auto Scaling management write events, then sends matching events to the SNS topic for email notification. This is direct, event-driven, and operationally efficient. AWS Config is useful for resource configuration history and compliance evaluation, but it is not the simplest way to notify on specific CloudTrail write API activity. Security Hub aggregates security findings and is not intended for general Auto Scaling configuration-change alerting. S3 Event Notifications on the CloudTrail log bucket are indirect and would trigger based on log file delivery, not cleanly on the specific management event. Therefore, EventBridge plus SNS is the right CloudOps monitoring and remediation pattern.

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