Meaning
RTO describes how quickly a system, application or service must be restored after an outage before the business suffers unacceptable impact. It informs decisions about architecture, automation, disaster recovery tooling and capacity planning. Consensus is that realistic RTOs are based on tested recovery times, not wishful SLAs, and they are often tiered by business process priority.
Why It Matters
Recovery Time Objective (RTO) is important in modern data and cyber resilience because it shapes protection, monitoring and recovery design.

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