The GREATEST concern for an IS auditor reviewing vulnerability assessments by the auditee would be...

Conducting vulnerability assessmentsonly once per year, right before an audit,creates a false sense of securityandleaves systems exposedbetween assessments.

Annual Testing Before Audit (Correct Answer – A)

Risksundetected vulnerabilitiesfor extended periods.

Example:A company only tests security before acompliance audit, allowingzero-day threatsto persist for months.

Internal Team Conducting Assessments (Incorrect – B)

Not ideal, butregular assessmentsare more critical.

Focusing on Critical Systems (Incorrect – C)

Not perfect, butbetter than no testing at all.

Using Open-Source Tools (Incorrect – D)

Open-source toolscan be effective ifproperly configured.