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CRISC Practice Question: A company's IT risk team is conducting a risk…
A company's IT risk team is conducting a risk identification exercise for a new blockchain-based supply chain solution. Which THREE risks are MOST specific to this technology?
⚠ Common exam trap
ISACA often tests the distinction between generic IT risks and technology-specific risks, so candidates mistakenly select 'high electricity consumption' without considering that many blockchain implementations (especially in enterprise supply chains) do not use energy-intensive proof-of-work.
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
✓
51% attack on the underlying consensus mechanism.
A 51% attack is a specific risk to blockchain consensus mechanisms where a single entity or group gains majority hashing power, allowing them to reverse transactions or prevent new blocks from being confirmed. This directly undermines the integrity and immutability that blockchain promises for the supply chain solution.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
51% attack on the underlying consensus mechanism.
Why this is correct
Consensus attacks are specific to blockchain.
- ✗
Incompatibility with legacy database systems.
Why it's wrong here
This is a general integration risk.
- ✗
High electricity consumption of mining nodes.
Why it's wrong here
Mining is not relevant for permissioned enterprise blockchain.
- ✓
Smart contract vulnerabilities leading to unintended execution.
Why this is correct
Smart contracts are a unique attack surface.
- ✓
Cryptographic key management failures.
Why this is correct
Key management is critical in blockchain.
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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.