Bucket owner granting cross-account bucket permissions

• In this example scenario, a bucket owner grants cross-account permission to another account to perform specific bucket operations.

Here's how to do it:

1. Account A administrator user attaches a bucket policy granting cross-account permissions to Account B to perform specific bucket operations.

2. Account B administrator user attaches user policy to the user delegating the permissions it received from Account A.

3. User in Account B then verifies permissions by accessing an object in the bucket owned by Account A.