**What is AmazonS3ReadOnlyAccess policy?**
The "AmazonS3ReadOnlyAccess" policy is an AWS managed policy that grants read-only access to resources within Amazon S3 (Simple Storage Service). When attached to an IAM user, group, or role, this policy allows users to view, list, and retrieve objects stored in S3 buckets, but does not grant permissions to create, modify, or delete objects.