The Annualized Loss Expectancy (Before) minus Annualized Loss Expectancy (After) minus Annual Safeguard Cost is...

 Formula for Cost Benefit Analysis

The formula evaluates whether implementing a safeguard is cost-effective:

Cost Benefit Analysis = ALE (Before) - ALE (After) - Annual Safeguard Cost

 Purpose

Measures the financial viability of implementing security controls.

Helps in prioritizing security investments by comparing the reduction in potential losses against the cost of the safeguard.

 Comparison of Options

A. Safeguard Value: Refers to the protective value of a safeguard, not this formula.

C. Single Loss Expectancy: Represents a single event's loss, not cost-benefit analysis.

D. Life Cycle Loss Expectancy: Unrelated to this formula, as it refers to losses over a system’s lifecycle.

 EC-Council References

This formula is emphasized in EC-Council risk management modules as essential for decision-making.