mediumMultiple ChoiceObjective-mapped
CISM Practice Question: After containing a security incident, the team…
After containing a security incident, the team conducts a root cause analysis. They find the breach originated from a compromised third-party vendor account. What is the most effective long-term mitigation?
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
✓
Implement vendor access reviews and enforce MFA
Implementing vendor access reviews and enforcing MFA addresses the root cause of unauthorized access.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Increase logging on vendor accounts
Why it's wrong here
Logging detects but does not prevent unauthorized access.
- ✗
Change all passwords manually
Why it's wrong here
Password changes are temporary and may not prevent future compromises.
- ✓
Implement vendor access reviews and enforce MFA
Why this is correct
Correct: Reduces risk of future compromises from vendor accounts.
- ✗
Terminate the vendor relationship
Why it's wrong here
Termination may not be feasible and doesn't address systemic issues.
Go deeper
Related to this question
About these practice questions
Courseiva writes every CISM question from scratch — 871 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or 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 CISM 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 CISM exam.