Locked Down: Azure SQL Backups Are Now Immutable by Default
Ransomware and malicious actors don’t just target your live production environments; they go straight for your safety net. In an era where data integrity is the last line of defense, Microsoft is raising the bar for cloud security by making high-tier backup protection a non-negotiable standard.
The latest update confirms that Azure SQL Database and Azure SQL Managed Instance now automatically apply immutability to the most recent seven days of backups. This capability is enabled by default for all databases, providing a critical layer of “write-once-read-many” (WORM) protection. By locking these recovery points, Azure ensures that your most recent data cannot be deleted or modified—even if an administrative account is compromised. This update significantly strengthens your disaster recovery posture and simplifies compliance without requiring any manual configuration or additional overhead.