CRISC IT Risk Assessment Practice Question
An organization is evaluating the risk of a ransomware attack. Using the FAIR framework, which of the following components directly multiplies to calculate Loss Event Frequency (LEF)?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Threat Event Frequency and Vulnerability
In FAIR, Loss Event Frequency (LEF) is calculated as Threat Event Frequency (TEF) multiplied by Vulnerability (V).
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Control Effectiveness and Residual Risk
Why it's wrong here
These are not direct components in LEF calculation.
- ✗
Annual Loss Expectancy and Single Loss Expectancy
Why it's wrong here
ALE = ARO × SLE, not LEF.
- ✗
Primary Loss and Secondary Loss
Why it's wrong here
These are components of Loss Magnitude, not LEF.
- ✓
Threat Event Frequency and Vulnerability
Why this is correct
Correct. LEF = TEF × Vulnerability.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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