Problem Statement
Design a safe data access pattern for S3 buckets that host sensitive files.
Explanation
Start deny by default. Turn on S3 Block Public Access at the account and bucket levels so no policy can make data public by mistake. Use least-privilege IAM policies bound to roles, not users. Encrypt objects with KMS and audit key use. Enable CloudTrail with a multi-Region trail and log file integrity so you can track who did what and when. Add bucket policies that require TLS and a specific VPC endpoint if possible. Finally, monitor for policy drift and unusual access. This structure lowers exposure and improves auditability.
Code Solution
SolutionRead Only
Bucket policy idea: aws:SecureTransport=true AND aws:SourceVpce in allowed_list; deny if not met
