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Training Camp • Cybersecurity Glossary
Mean Time to Repair (MTTR) is the average time to restore a failed system after detection, a key incident response and reliability metric.
Mean Time to Repair (MTTR) Definition: Mean Time to Repair (MTTR) is the average time to restore a failed system after detection, a key incident response and reliability metric.
Mean Time to Repair (MTTR) is a reliability and operations metric that measures the average time taken to fully restore a failed system, service, or control after an incident is detected. In security operations it is often interpreted as mean time to respond or recover, and is tracked alongside Mean Time to Detect (MTTD) to gauge incident response efficiency. Lower MTTR indicates faster recovery and reduced impact from outages or breaches.
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