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Ale: articles and guides
2 PlayCISO articles on ale, newest first. The most recent is “Annual Loss Expectancy (ALE): Formula + Calculator”.
Annual Loss Expectancy (ALE): Formula + Calculator
How to calculate annual loss expectancy: ALE = SLE × ARO, an exposure-factor table, two worked examples, its limits, and a free calculator to run yours.
September 26, 2026
Single Loss Expectancy (SLE): Formula, vs ALE
Single loss expectancy (SLE) is the cost of one incident: Asset Value × Exposure Factor. E.g. $500,000 × 0.4 = $200,000. ALE = SLE × ARO, per year.
September 26, 2026