Question 700
During a follow-up assurance engagement at a telecommunications provider, the IS auditor learns that a temporary maintenance badge remains active long after vendor work ends. The affected operation supports customer provisioning and billing. Service availability and accurate customer billing depend on the process. What control exposure MOST directly explains why this observation is significant?
Explanation
Correct Answer
Correct. Facility access or environmental failure can compromise systems when protective controls and response are absent. The described exception is: a temporary maintenance badge remains active long after vendor work ends. This risk ties the observation to the business significance of customer provisioning and billing, rather than treating management's claim as independent assurance.
Incorrect Answers
Sensitive information can leave controlled boundaries when classification, inspection coverage or response is incomplete. The evidence appropriate to the audit conclusion prerequisite remains unaddressed.
Exposed administration surfaces and weak segment or endpoint controls can enable unauthorized access and lateral movement. It changes a different feature than evidence appropriate to the audit conclusion.
Weak device identity, lifecycle and network segmentation can expose sensitive systems through unmanaged endpoints. That change would not implement evidence appropriate to the audit conclusion.