Ensure a Log Metric Filter and Alarm Exist for S3 Bucket Policy Changes in AWS
You can do real-time monitoring of API calls by directing CloudTrail logs to CloudWatch Logs and establishing corresponding metric filters and alarms. Security Hub recommends that you create a metric filter and alarm for changes to S3 bucket policies. Monitoring these changes might reduce time to detect and correct permissive policies on sensitive S3 buckets. Send results via Email.
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Breakdown
  1. Ensure a Log Metric Filter and Alarm Exist for S3 Bucket Policy Changes.
  2. Send results via Email. This result step can be changed from Email to Slack, Microsoft Teams or Discord.