Question 760
During a post-incident audit at a retail marketplace, the IS auditor learns that key rotation is disabled after a test because dependencies are undocumented. The affected operation supports customer checkout and order fulfillment. Customer transactions and market trust depend on effective control. Where should the audit team focus its principal finding?
Explanation
Correct Answer
Correct. Encryption may fail to protect information if keys, algorithms, transport or access are poorly governed. The described exception is: key rotation is disabled after a test because dependencies are undocumented. This risk ties the observation to the business significance of customer checkout and order fulfillment, rather than treating management's claim as independent assurance.
Incorrect Answers
Security testing can miss material exposure or create uncontrolled disruption if scope, validation and remediation are weak. The configuration must instead establish evidence appropriate to the audit conclusion.
Weak device identity, lifecycle and network segmentation can expose sensitive systems through unmanaged endpoints. The evidence appropriate to the audit conclusion prerequisite remains unaddressed.
Cloud outsourcing does not remove customer responsibility for configuration, access and oversight of shared-control boundaries. It changes a different feature than evidence appropriate to the audit conclusion.