Today, AWS announced Amazon DynamoDB encryption at Rest, a new DynamoDB feature that gives you enhanced security of your data at rest by encrypting it using your associated AWS Key Management Service encryption keys. Encryption at rest can help you meet your security requirements for regulatory compliance.
You now can create an encrypted DynamoDB table anytime with a single click in the AWS Management Console or a single API call. Encrypting DynamoDB data has no impact on table performance. DynamoDB encryption at rest is available starting today in the US East (N. Virginia), US East (Ohio), US West (Oregon), and Europe (Ireland) Regions for no additional fees.
For more information, see the full AWS Blog post.