AWS is nothing if not devoted to security. Amazon Relational Database Service (RDS) now has new storage options that allow you to share encrypted database snapshots with other AWS accounts.
Previously, encrypted snapshots were relegated to one AWS account. Now you can securely share them with up to 20 others, either using the AWS management Console, the AWS Command Line Interface, or the RDS API.
To start, just select your snapshot and click Share Snapshot. Note that you cannot share these snapshots publicly.
Another new feature in RDS is that you can add encryption to existing unencrypted database instances. This process involves creating a snapshot of the database, copying the snapshot to a new instance, then enabling encryption while specifying the KMS key you want.