Mean time to respond, or MTTR, is the average time it takes an organization to act on, contain, remediate, or resolve a detected incident. It matters because even strong detection loses value if response is too slow to reduce attacker impact.
What is Mean Time to Respond (MTTR)?
MTTR is a security operations metric used to evaluate how quickly defenders move from detection into action. Depending on the organization, it may emphasize containment speed, triage speed, full remediation, or overall incident resolution.
What Influences MTTR
Common factors include staffing, playbooks, tooling integration, escalation clarity, access to response controls, and the complexity of the environment or incident.
MTTR vs. MTTD
MTTD measures how quickly incidents are discovered. MTTR measures how quickly defenders respond after that discovery.
Frequently Asked Questions
Why is MTTR important?
Because shorter response times usually reduce spread, limit data loss, and improve overall resilience during active incidents.
Can automation improve MTTR?
Yes. Better orchestration, playbooks, and integrated response tooling often help teams act faster and more consistently.
Related Cybersecurity Terms
- Mean Time to Detect (MTTD)
- Security Orchestration
- Incident Response
- Security Operations Center (SOC)
