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CRISC Practice Question: A bank's fraud detection system generates an…
A bank's fraud detection system generates an alert for a transaction, but subsequent investigation finds it false. What should be done?
⚠ Common exam trap
It's easy for candidates to assume immediate corrective action (reducing sensitivity) is best, but CRISC emphasizes data-driven decision-making and documentation before making control changes.
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
✓
Document the false positive for trend analysis.
Documenting false positives enables trend analysis to identify patterns in detection logic errors, such as rule misconfigurations or data quality issues. This aligns with the CRISC domain of risk and control monitoring, where logging and analyzing false alerts improves detection accuracy over time without prematurely adjusting thresholds.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Document the false positive for trend analysis.
Why this is correct
Tracking false positives helps identify patterns and improve the detection logic.
- ✗
Report to the board.
Why it's wrong here
A single false positive does not warrant board attention.
- ✗
Ignore future similar alerts.
Why it's wrong here
Ignoring alerts could lead to missing actual fraud.
- ✗
Reduce the sensitivity of the detection system.
Why it's wrong here
Reducing sensitivity may cause true positives to be missed.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CRISC practice question is part of Courseiva's free ISACA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CRISC exam.