Amazon RDS Enables Encryption at Rest for Additional T2 Instance Types

Amazon RDS now supports encryption at rest for db.t2.small and db.t2.medium database instances. This support is available for the MySQL, MariaDB, PostgreSQL, Oracle and SQL Server database engines, and can use AWS Key Management Service (KMS) or the engines’ Transparent Data Encryption technologies if available. 
Quelle: aws.amazon.com