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MTTD and MTTR

MTTD and MTTR

MTTD and MTTR are security operations metrics that measure how quickly a team detects malicious activity and how quickly it responds to or remediates the issue.

What Are MTTD and MTTR?

MTTD stands for mean time to detect, and MTTR commonly refers to mean time to respond or mean time to remediate depending on the organization's usage. Together, these metrics show whether a security team is seeing attacker activity quickly enough and acting effectively once it is identified.

What These Metrics Reveal

  1. Detection Speed: How fast suspicious activity is surfaced and recognized
  2. Triage Efficiency: How quickly analysts validate alerts and escalate correctly
  3. Containment Readiness: How fast teams can isolate systems or accounts
  4. Operational Bottlenecks: Where workflows, tooling, or coordination slow response

Why They Matter

Improving MTTD and MTTR reduces attacker opportunity and limits business impact. These metrics are especially useful when tracked before and after tuning detections, changing tooling, or refining response processes.

How FourCore ATTACK Relates

FourCore ATTACK helps teams measure how quickly real attack behaviors are detected during controlled exercises and where response workflows break down, which makes these metrics more actionable.

Related Terms

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