Disaster recovery is a strategic approach to ensuring the continuity and recovery of critical IT systems and data following a disruptive event, such as natural disasters, cyberattacks, or hardware failures. It involves creating and implementing plans, procedures, and technologies to quickly restore normal operations and minimize downtime. Key elements include data backups, recovery sites, and regular testing of recovery plans. Effective disaster recovery helps organizations maintain business continuity, protect data integrity, and reduce the impact of unexpected disruptions.