Handbook
MTTD and MTTR in Security: Measuring What Matters
What are MTTD and MTTR in cybersecurity? Learn how to measure, benchmark, and improve your mean time to detect and respond to security threats.
Definitions: MTTD and MTTR
MTTD (Mean Time to Detect) = average time from threat occurrence to detection. MTTR (Mean Time to Respond) = average time from detection to containment/resolution. Together they measure SOC effectiveness.
Industry benchmarks
Average MTTD: 197 days for data breaches. Average MTTR: 69 days. Top-performing SOCs: MTTD < 24 hours, MTTR < 1 hour. Agentic SOC targets: MTTD minutes, MTTR minutes.
Why these metrics matter
Longer dwell time = more damage. Every hour of undetected breach increases cost. Regulators increasingly expect documented response times. Customers and insurers want proof of fast response capability.
How to improve MTTD and MTTR
Automate detection across all sources (reduce blind spots). Automate investigation (eliminate manual enrichment). Automate response (remove human bottleneck for routine threats). Measure and track continuously.
Agentic AI impact on MTTD/MTTR
Agentic AI targets near-zero MTTD (continuous detection) and minutes-level MTTR (autonomous response). This represents a step change from traditional SOCs where both metrics are measured in hours or days.
Put this into practice
See how Helxon applies these principles with autonomous investigation and response.