Core idea
Access controls protect systems and data by limiting permissions, approving access changes, removing access promptly, and monitoring for inappropriate activity.
ISC topic guide
Access controls for ISC CPA candidates.
Access control questions test whether the right people have the right access at the right time, and whether the organization can prove access is appropriate.
Last reviewed July 31, 2026. World of Accountants is independent and not affiliated with the AICPA, NASBA, Becker, NINJA, UWorld, Gleim, or other CPA review providers.
What ISC likes to test
Expect least privilege, role-based access, multi-factor authentication, privileged accounts, joiner-mover-leaver processes, access reviews, and segregation of duties.
Common miss
Candidates often choose a preventive control when the facts ask for monitoring evidence, or they forget deprovisioning when an employee changes roles or leaves.
How to practice
Ask whether the risk is unauthorized access, excessive access, stale access, or lack of evidence. Then match the control to that risk.
ISC topic guides
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Practice loop
Use the topic, then answer questions while the idea is fresh.
Short practice sets are enough to expose whether the rule is sticking.