Key points Implement the 3-2-1-1 backup rule by keeping three copies of data across two different media, with one copy offsite and one air-gapped or immutable backup. Air-gapped, offline, and offsite backups create barriers against ransomware by disconnecting backup data from networks and keeping it stored securely offsite, further reducing risks from attacks. Immutable backups … Continue reading How to protect backups from ransomware and cyber attack