Amazon S3 Access Points can now be used to securely delegate access permissions for shared datasets to other AWS accounts

[Amazon Web Services]

Amazon S3 Access Points simplify data access for any AWS service or customer application that stores data in S3 buckets. With S3 Access Points, you create unique access control policies for each access point to more easily control access to shared datasets. Now, bucket owners are able to authorize access via access points created in other accounts. In doing so, bucket owners always retain ultimate control over data access, but can delegate responsibility for more specific IAM-based access control decisions to the access point owner. This allows you to securely and easily share datasets with thousands of applications and users, and at no additional cost.

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