Industrial Cybersecurity & OT Risk calculator
Mean Time to Detect Cyber Calculator
Use this calculator to estimate detection time for OT cybersecurity alerts or events. It supports defensive monitoring planning for industrial network sensors, EDR, SIEM alerts, anomaly notifications, and plant security escalations.
What this calculator does
- Estimate cyber detection workload time using alert or event count, detection review rate, and triage allowance.
- Use it when evaluating OT monitoring coverage, SOC handoff, alert triage, and mean time to detect improvement.
- The result estimates hours needed to detect and triage the alert workload.
Formula used
- Base cyber detection time = OT cyber alerts or events to review ÷ detection triage completion rate
- Required cyber detection time = base cyber detection time × allowance factor
Inputs explained
- OT cyber alerts or events to review: Count alerts, anomalies, EDR events, network detections, or escalation tickets that require initial triage.
- Detection triage completion rate: Use measured analyst, engineer, or SOC triage throughput for the OT alert type and evidence quality.
- Correlation and escalation allowance: Add time for asset lookup, operations confirmation, false positive review, escalation, and documentation.
How to use the result
- Use it to evaluate monitoring staffing, alert quality, and MTTA or MTTD improvement plans.
- It does not prove malicious activity and should be paired with tuned detections and response procedures.
Common questions
- What is the mean time to detect cyber calculator for? It estimates how long alert review and initial detection triage may take for OT cyber events.
- What information should I enter? Use alert count, triage rate, and correlation allowance.
- What does the result tell me? The result helps plan monitoring capacity and detection response targets.
- When is the result only an estimate? It is only an estimate when alert quality, false positive rate, asset context, or staffing changes.
Last reviewed 2026-05-12.