Preview access
In addition to helping you identify resources that are shared with an external entity, AWS IAM Access Analyzer also enables you to preview IAM Access Analyzer findings before deploying resource permissions so you can validate that your policy changes grant only intended public and cross-account access to your resource. This helps you start with intended external access to your resources.
You can preview and validate public and cross-account access to your Amazon S3 buckets in the
Amazon S3 console
