Quantitative Risk Assessment Single loss expectancy (SLE): Total loss expected from a single incident Annual rate of occurrence (ARO): Number of times an incident is expected to occur in a year Annual loss expectancy (ALE): Expected loss for a year ALE = SLE X ARO Safeguard value: Cost of a safeguard or

control Scenario 1: Richman Investments provides high-end smartphones to several employees. The value of each smartphone is $500, and approximately 1,000 employees have these company-owned devices. In the past year, employees have lost or damaged 75 smartphones. calculate the SLE, ARO, & ALE