Question 810
An ISMS reviewer examines the following case: A payroll team finds that approved salary entries are silently altered during a nightly import. What evidence would most directly show that the response is operating effectively?
Explanation
Correct Answer
Reconciliation reveals approved changes and detects unauthorized or malformed data modifications. This is the relevant test result for the scenario in which a payroll team finds that approved salary entries are silently altered during a nightly import. It verifies the action to establish controlled changes and integrity verification for the affected business records. The corresponding operating design is to use authenticated change permissions, integrity checks and traceable correction histories. The result should rule out the error of using encryption alone as evidence that records cannot be altered by an authorized but careless operator.
Incorrect Answers
Tests confirm the prohibited account or action is rejected before protected information changes. This may be a useful result for preventive control classification in another case, such as when an identity team wants to stop a former contractor from signing in after termination. It does not establish effectiveness of the controls necessary for the described problem. The relevant evidence is that reconciliation reveals approved changes and detects unauthorized or malformed data modifications. Case: A payroll team finds that approved salary entries are silently altered during a nightly import.
Treatment records map evaluated risks to implemented measures and residual-risk approval. This may be a useful result for risk treatment versus control list in another case, such as when a manufacturer copies an entire generic control catalog into a project without evaluating its actual threats. It does not establish effectiveness of the controls necessary for the described problem. The relevant evidence is that reconciliation reveals approved changes and detects unauthorized or malformed data modifications. Case: A payroll team finds that approved salary entries are silently altered during a nightly import.
Scope review shows critical information flows and interfaces are addressed and exclusions explained. This may be a useful result for risk-driven scope and context in another case, such as when a subsidiary narrows its ISMS boundary to one office although data processing extends to shared cloud services. It does not establish effectiveness of the controls necessary for the described problem. The relevant evidence is that reconciliation reveals approved changes and detects unauthorized or malformed data modifications. Case: A payroll team finds that approved salary entries are silently altered during a nightly import.





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