Breach risk calculators
Turn breach risk into a number. Compute Annual Loss Expectancy (ALE = ARO × SLE), your annual breach probability by sector, the cost of downtime, and the maximum exposure of the records you hold.
Annual Loss Expectancy (ALE) CalculatorCompute Annual Loss Expectancy with the standard risk formula ALE = ARO × SLE, where SLE = asset value × exposure factor.Annual Breach Probability CalculatorEstimate your annual probability of a data breach by sector, expressed as a percentage and as a "1 in N years" likelihood.Cost of Downtime CalculatorEstimate the cost of business interruption from a breach or ransomware incident: revenue per hour × hours of downtime × a productivity factor, plus recovery.Records-at-Risk Exposure CalculatorTranslate the volume of sensitive records you hold into a maximum financial exposure using your industry cost per record.
Breach risk guides
The calculators above turn risk into a dollar figure. These guides cover the inputs that figure depends on — what Annual Loss Expectancy actually measures, how to estimate a rate of occurrence with no incident history of your own, and when a quantitative model is worth more than a risk matrix.
Annual Loss Expectancy: putting a dollar figure on breach riskALE = ARO × SLE: how to estimate the rate of occurrence and single-loss expectancy, and the limits of the model.How to estimate ARO when you have no incident dataHow to estimate the annual rate of occurrence for an ALE calculation with no breach history: sector base rates, defensible multipliers and a reported band.Quantitative vs qualitative cyber risk assessmentWhy a red-amber-green risk matrix stalls at budget time, how quantitative analysis differs, and how to turn an existing risk register into dollar figures.