Storage Service Encryption for Azure Backup data at rest

21 November 2017

Azure Backup already provides encryption at rest by using the passphrase that you provide while backing up data from on-premises to Azure. For virtual machines in Azure, till now the recommendation was to use Azure disk-encrypted VMs for securing backups.

Today, all new VMs that will be backed up and all new backup data from already backed-up VMs will be encrypted at rest through Storage Service Encryption (SSE). Existing data from your VM backups will be encrypted through SSE in a background activity. 

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