CISM Information Security Programme Practice Question
An organization is implementing a security controls framework and needs to prioritize which controls to implement first. According to CIS Controls v8, which approach aligns with the principle of 'implementation groups'?
⚠ Common exam trap
CISM often tests the sequential nature of CIS Implementation Groups; candidates may think they can cherry-pick controls or start with advanced ones, but the principle is to build from IG1 upward.
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
✓
Start with all controls from IG1, then move to IG2 and IG3 as resources allow
CIS Controls v8 defines Implementation Groups (IGs) as a prioritized approach: IG1 covers basic cyber hygiene controls that every organization should implement first, then IG2 adds more mature controls, and IG3 includes advanced controls for organizations with greater risk and resources. Starting with IG1 and progressing sequentially ensures foundational security before moving to more complex controls.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Focus only on controls that address the greatest risks regardless of group
Why it's wrong here
CIS Implementation Groups are cumulative tiers (IG1, IG2, IG3) based on organisational risk profile and resources, so prioritising by risk alone ignores the prescribed IG sequencing. It is tempting because risk-based prioritisation is a valid general security principle, and would be correct if the framework imposed no grouping model.
- ✗
Implement IG3 controls first as they are the most advanced
Why it's wrong here
IG3 controls are the most advanced and presuppose IG1 and IG2 safeguards already operating, so starting there leaves foundational controls absent. IG3 is appropriate for organisations with mature security programmes and dedicated specialists. The option tempts candidates who equate 'advanced' with 'highest priority'.
- ✓
Start with all controls from IG1, then move to IG2 and IG3 as resources allow
Why this is correct
CIS Controls v8 defines Implementation Group 1 as foundational cyber hygiene, with IG2 and IG3 adding maturity. This satisfies the stem by sequencing IG1 controls first, then progressing as resources allow, matching the defined implementation group structure.
- ✗
Implement controls from all groups simultaneously to achieve comprehensive coverage
Why it's wrong here
CIS Controls v8 defines Implementation Groups as cumulative maturity tiers, so IG1 must be completed before IG2 and IG3; implementing all simultaneously ignores that dependency. Simultaneous rollout suits organisations already satisfying lower-tier safeguards. The option tempts candidates equating comprehensive coverage with thorough prioritisation.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official ISACA exam blueprint
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.