Industrial Cybersecurity & OT Risk worked example

Mean Time to Contain Cyber at 32% coordination and validation allowance: a worked example

Suppose coordination and validation allowance falls to 32%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate cyber containment workload time using affected systems, containment rate, and coordination allowance.

The inputs for this scenario

  • Affected OT systems or containment tasks: 28 tasks (held at the documented default)
  • Containment completion rate: 3.5 tasks / hr (held at the documented default)
  • Coordination and validation allowance: 32 % (the input this scenario stresses; the baseline uses 45)

Working through the calculation

  • The calculation starts from the formula this tool documents: Base cyber containment time = affected OT systems or containment tasks รท containment completion rate.
  • Required cyber containment time works out to 10.56 hr at these inputs, and this is the headline figure for the scenario.
  • Base cyber containment time works out to 8 hr at these inputs.
  • Coordination and validation allowance works out to 32 % at these inputs.
  • Containment completion rate works out to 3.5 pieces / min at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where coordination and validation allowance sits at 45% and the headline result is 11.6 hr, this scenario comes in 8.97% below the baseline at 10.56 hr.
  • It computes the required containment time in hours by dividing affected OT systems or tasks by your containment completion rate, then padding the result with a coordination-and-validation allowance. When the numbers land here, the stressed input is the lever to work; the walkthrough above shows exactly how much each output recovers as it climbs back toward the baseline.

Results at a glance

  • Required cyber containment time: 10.56 hr (headline result)
  • Base cyber containment time: 8 hr
  • Coordination and validation allowance: 32 %
  • Containment completion rate: 3.5 pieces / min

Run it with your numbers

  • To rerun this with your own numbers, open the live Mean Time to Contain Cyber calculator, set coordination and validation allowance to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.