Monitoring S3 Bucket Policy Changes for Enhanced Cloud Governance

Enterprises manage hundreds of access policies across their expanding cloud environments. Implementing comprehensive monitoring of access policies enhances cloud governance, supports compliance efforts, and strengthens overall resource security. This post demonstrates an automated solution using AWS CloudTrail, EventBridge, and SNS to monitor S3 bucket policy changes, providing organizations with quick insights and alerting mechanisms. By monitoring bucket policy changes, organizations can detect and respond to unauthorized or prohibited modifications, enhancing their security posture and maintaining better control over S3 access policies, data protection, and regulatory compliance.