Examples · worked scenario
Make the OT security investment case.
Start with a fictional production interruption, compare the expected consequences before and after a change, and ask which assumptions make the result credible.
This is not an industry benchmark, a safety assessment, or a prediction of savings. The worksheet runs locally in your browser; entries are not submitted or saved automatically.
1 · Follow the reasoning
A scenario before a product.
The companion article carries the complete worked calculation, including negative first-year ROI, a three-year comparison, sensitivity, and the limits of a financial model. Keep the full calculation in one place rather than treating a headline return as the decision.
Read the worked calculations2 · Change an assumption
Try the same fictional inputs.
Open the worksheet and choose “Load fictional example.” Change outage duration or recurring cost, then compare benefit, ROI, and payback. Save an editable HTML copy for offline use, or print the result.
3 · Explain the limit
What would you need to verify?
- Who agreed the frequency, downtime, loss, and recovery assumptions?
- Does the change plausibly affect the scenario, and have overlapping losses been excluded?
- What safety, legal, and contractual requirements remain regardless of ROI?
- Who accepts the residual risk and verifies operational performance?
The resource library holds the reusable worksheet formats; this page provides the worked-example pathway.