Which service enables you to review the security of your Amazon S3 buckets by checking for open access permissions?

Question

BlackTom AI · Accepted Answer

In approaching this question, we need to identify which AWS service focuses on reviewing S3 bucket security configurations and access permissions.
Option 1: Amazon GuardDuty. GuardDuty is a threat-detection service that analyzes events to identify potential malicious activity and security threats. It does not primarily review or audit S3 bucket permissions, so this choice misses the targeted capability.
Option 2: Amazon CloudWatch. CloudWatch provides monitoring and observability for AWS resources, including metrics, logs, and alarms. While it helps you observe activity, it does not specialize in auditing or validating S3 bucket access controls, making this option inaccurate for the asked purpose.
Option 3: AWS CloudTrail. CloudTrail records API activity and provides an audit trail of actions across the AWS account. It is useful for forensic analysis and compliance, but it does not proactively review bucket permissions or highlight open access configurations by itself. Therefore, this is not the best fit for reviewing S3 permissions.
Option 4: AWS Trusted Advisor. Trusted Advisor offers best-practice checks across AWS services, including security checks for S3 bucket permissions and public access settings. It is specifically designed to help identify and remediate access issues to ensure buckets aren’t unintentionally exposed, aligning exactly with the question.
Therefore, the option that enables reviewing the security of S3 buckets by checking for open access permissions is AWS Trusted Advisor. The reasoning hinges on the purpose of Trusted Advisor as a proactive governance tool for security configurations, whereas the other services provide monitoring, auditing, or threat detection but not the direct, built-in checks for S3 public access exposure described in the question.

Which service enables you to review the security of your Amazon S3 buckets by checking for open access permissions?

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