Which of the following is the best metric to use when reviewing and addressing findings that caused an incident?

Mean time to restore (MTTR, for restoration) measures the time it takes to get a system back to an operational state after an outage, which is focused on availability rather than addressing the underlying findings.

Mean time to respond (MTTR, for response) measures the time from detection to the start of incident response activities, but not necessarily the resolution of the root cause.

Mean Time To Remediate (MTTR) is the best metric for reviewing and addressing findings that caused an incident because it specifically measures the average time it takes to implement a fix or solution that permanently resolves the root cause of a problem. Focusing on remediation ensures that identified vulnerabilities or misconfigurations are adequately addressed to prevent future occurrences, thereby improving overall security posture.

Mean time to detect (MTTD) measures the time from when an incident occurs to when it is identified, which is crucial for early warning but not for addressing the findings themselves.