Question 830
During a payment-platform modernization at a payment clearing organization, the IS auditor learns that an exposed API is repeatedly probed yet threat scenarios ignore credential stuffing. The affected operation supports merchant settlement and reconciliation. Finance and settlement integrity depend on this operation. Which audit procedure would provide the MOST DIRECT evidence about this control?
Explanation
Correct Answer
Correct. Map realistic threats to entry points, trust boundaries and known weaknesses, then validate controls against representative misuse cases. The procedure directly tests the reported condition that an exposed API is repeatedly probed yet threat scenarios ignore credential stuffing. A defensible IS audit conclusion requires relevant and reliable evidence from the actual control population and period.
Incorrect Answers
Not the most direct fieldwork procedure for these facts. The relevant success criterion is evidence appropriate to the audit conclusion; this measures a different function.
Not the most direct fieldwork procedure for these facts. That result could pass without demonstrating evidence appropriate to the audit conclusion.
Not the most direct fieldwork procedure for these facts. It does not establish the requested evidence appropriate to the audit conclusion outcome.