Your organization has recently deployed a vulnerability management platform. As part of your role, you are required to report on the effectiveness of the program to senior management. Which metric would be the most directly useful to demonstrate improvement in your organization's ability to manage vulnerabilities over time?
The answer 'Mean time to remediate (MTTR)' is correct because it directly reflects the efficiency and effectiveness of the vulnerability management process by measuring the average time taken from when a vulnerability is identified until it is remediated. Monitoring the MTTR over time can help identify improvements or degradations in the vulnerability management processes. 'Alert volume' does not necessarily indicate effectiveness, as it could reflect a high number of false positives or an increase in scanning activities. 'Mean time to detect (MTTD)' measures how quickly vulnerabilities are identified, not how efficiently they are managed or resolved. 'Critical vulnerabilities and zero-days' is a metric that indicates the presence of high-risk vulnerabilities but does not reflect the improvements in managing vulnerabilities over time.
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Why is Mean Time to Remediate (MTTR) important for vulnerability management?
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How is MTTR different from Mean Time to Detect (MTTD)?
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What strategies can organizations use to improve their MTTR?