AWS Security Blog
Tag: S3 Inventory
How to retroactively encrypt existing objects in Amazon S3 using S3 Inventory, Amazon Athena, and S3 Batch Operations
February 5, 2026: Amazon S3 now supports the UpdateObjectEncryption API so you can atomically update the server-side encryption type of existing encrypted objects from server-side encryption with S3 managed encryption (SSE-S3) to server-side encryption with AWS Key Management Service (AWS KMS) encryption keys (SSE-KMS). Read the documentation. November 1, 2021: AWS KMS is replacing the […]