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Global Accelerated Learning • Est. 1999
Glossary Term Annualized Loss Expectancy (ALE)

Training Camp • Cybersecurity Glossary

What is Annualized Loss Expectancy (ALE)?

Annualized Loss Expectancy (ALE) is the expected yearly loss from a threat, calculated as Single Loss Expectancy times Annualized Rate of Occurrence.

Glossary > Governance, Risk & Compliance > Annualized Loss Expectancy (ALE)

Understanding Annualized Loss Expectancy (ALE)

Annualized Loss Expectancy (ALE) is a quantitative risk-analysis metric representing the expected monetary loss from a specific threat over one year. It is calculated by multiplying the Single Loss Expectancy (SLE) by the Annualized Rate of Occurrence (ARO), expressed as ALE = SLE x ARO. ALE helps organizations prioritize controls and justify security investments by comparing the cost of safeguards against expected annual losses.

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