Which metric is commonly used to evaluate the quality of security testing results?

• A. Uptime.
• B. False positive rate.
• C. User acquisition rate.
• D. Sales conversion rate.

Answer: (B)

Evaluating how trustworthy security testing results are hinges on how many detected issues are real versus false alarms. The false positive rate captures that by showing the fraction of findings that aren’t actually vulnerabilities after verification. A low false positive rate means testers can trust the results and focus on real risks, improving efficiency and reducing wasted triage time. Uptime, user acquisition rate, and sales conversion rate measure system availability and business performance, not the accuracy or usefulness of security test outputs. That’s why the false positive rate is the most relevant metric for evaluating the quality of security testing results.