AI0-001 AI Security Practice Question
A machine learning engineer notices that a fraud detection model's false positive rate has increased significantly over the past week. The model was retrained two weeks ago with new data. Which attack is MOST likely responsible?
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
✓
Data poisoning
Data poisoning corrupts training data, causing the model to learn incorrect patterns. The retraining with new data introduces the poisoned samples, degrading performance. Adversarial examples are at inference time, model inversion reconstructs data, and prompt injection targets LLMs.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Data poisoning
Why this is correct
Poisoned data during retraining can cause the model to misclassify legitimate transactions as fraud, raising false positives.
- ✗
Prompt injection
Why it's wrong here
Prompt injection is specific to LLMs, not fraud detection models.
- ✗
Adversarial examples
Why it's wrong here
Adversarial examples affect individual predictions, not a systematic degradation across many samples after retraining.
- ✗
Model inversion
Why it's wrong here
Model inversion reconstructs training data, not degrade performance.
About these practice questions
This AI0-001 question is part of Courseiva's 754-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This AI0-001 practice question is part of Courseiva's free CompTIA 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 AI0-001 exam.