Backup Strategies for Cyber-Resilience

This guide details three backup strategies designed to enhance cyber-resilience. It outlines the importance of aligning backup methods with business continuity objectives and cyber-security best practices. The guide begins by categorizing backup methods into system or image backups and file backups, each serving different recovery purposes. For each strategy, specific methods, frequencies, and storage destinations are presented, ensuring that redundancy is incorporated in the backup process. Additionally, the guide emphasizes the significance of offsite storage and the 3-2-1 backup strategy, which mandates three total copies of data, two of which should be local but on different devices, and one copy offsite. Each strategy is tailored for various environments, including physical servers and remote work settings, with consideration for cost, recovery time objectives (RTO), and recovery point objectives (RPO). The document also discusses the necessity of backup testing and disaster recovery exercises to ensure effectiveness.