Which of the following would be a risk practitioner's GREATEST concern with the use of a vulnerability scanning tool?

Increased time to remediate vulnerabilities is an operational challenge, but it doesn't fundamentally invalidate the output or purpose of the scanning tool itself.

Inaccurate reporting, whether false positives or false negatives, directly compromises the reliability of the vulnerability assessment and the subsequent risk management decisions. If the tool provides incorrect information, the practitioner cannot effectively prioritize or remediate actual risks, leading to misallocation of resources or unaddressed critical vulnerabilities, which can have severe security implications.

An increased number of vulnerabilities is a finding, not a concern about the tool's functionality; it indicates a real issue to be addressed, which is the tool's purpose.

Network performance degradation during a scan is a potential operational side effect, but it's generally temporary and doesn't affect the accuracy or utility of the scan results once obtained.