How Do You Back Up Business-Critical Data?

This guidance outlines a structured backup strategy to ensure cyber resilience, emphasizing data classification and prioritization, the 3-2-1 rule, appropriate use of full/incremental/differential/block-level backups, cloud and hybrid storage, regular restore testing, integration with business continuity planning, and safeguards (immutability, access controls, vendor assessment) to protect backups from human error, ransomware, and third‑party failures.