CRISC Information Technology and Security Practice Question
A risk manager is assessing the impact of quantum computing on the organization's cryptographic infrastructure. The timeline for quantum advantage is estimated to be 10 years. What is the most appropriate immediate action to address this risk?
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
✓
Begin post-quantum cryptography migration planning and crypto-agility assessment
Post-quantum cryptography migration planning is a strategic activity that should begin now to ensure readiness before quantum computers can break current cryptography.
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 key lengths for all symmetric encryption to 256 bits
Why it's wrong here
While helpful for symmetric ciphers, this does not address asymmetric cryptography vulnerability.
- ✗
Ignore the risk until quantum computers are commercially available
Why it's wrong here
Ignoring the risk could lead to being unprepared when quantum advantage is achieved.
- ✓
Begin post-quantum cryptography migration planning and crypto-agility assessment
Why this is correct
Correct. Starting planning and assessing crypto-agility is prudent and timely.
- ✗
Replace all existing cryptographic algorithms with post-quantum algorithms immediately
Why it's wrong here
Immediate replacement may be premature and costly; standards are still evolving.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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