ISC Risk Management Practice Question
You are assessing a system that uses machine learning for fraud detection. The system is experiencing 'concept drift'. What is the risk, and how should it be managed?
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
✓
The risk is model inaccuracy; manage by monitoring performance metrics and retraining.
Concept drift occurs when the statistical properties of the target variable change over time, rendering the model inaccurate. It must be managed through continuous monitoring and periodic model retraining.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The risk is model poisoning; manage by sanitizing the training data.
Why it's wrong here
Poisoning is an intentional attack; concept drift is a natural evolution of data.
- ✗
The risk is model inversion; manage by adding differential privacy.
Why it's wrong here
Inversion is a different class of risk than concept drift.
- ✓
The risk is model inaccuracy; manage by monitoring performance metrics and retraining.
Why this is correct
Drift degrades effectiveness, requiring ongoing maintenance and retraining.
- ✗
The risk is a data breach; manage by encrypting the dataset.
Why it's wrong here
Concept drift is a performance/accuracy issue, not a data breach.
About these practice questions
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official (ISC)² exam blueprint
This ISC practice question is part of Courseiva's free (ISC)² 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 ISC exam.