Tighten S3 permissions for your IAM users and roles using access history of S3 actions

By GIXnews

To help you identify unused S3 permissions, AWS Identity and Access Management (IAM) extended service last accessed information to include S3 management actions and reports the last time a user or role used an S3 action. This granular access information helps you analyze access, identify unused S3 actions, and remove them confidently.

Source:: Amazon AWS