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Starting with PowerStoreOS 3.5, the secure snapshot setting can be enabled for snapshots on volumes and volume groups. Snapshot rules can also be configured to create secure snapshots automatically. With secure snapshots enabled, the snapshots and parent resource are protected from accidental or malicious deletion and serve as a cost-effective line of defense against ransomware attacks. If an unauthorized user gains access to a system, the attacker cannot delete secure snapshots and cause data loss.