Data at rest is information in any digital format that resides in persistent storage on physical media. This media also includes archived data, files on magnetic or optical media, and data backups. The variety of data storage solutions in Azure offers encryption for data at rest, such as table, blob, file, and disk storage. Azure also provides encryption to protect data in Azure SQL Database, Azure Data Lake, and Cosmos DB.

In the next section, we are going to cover data encryption and decryption at rest.