ISC2 Certified Secure Software Lifecycle Professional (CSSLP) Practice Question

A supplier's ability to correct flaws promptly after they become known is a direct indicator of mature vulnerability-management practices. Measuring the average time between a vulnerability's public disclosure (or internal discovery) and the release of a corrective patch-often called mean time to remediate (MTTR)-shows how quickly the vendor can mobilize engineering, testing, and distribution processes to protect customers. A lower MTTR reflects a proactive posture and typically fewer days of customer exposure. Simply counting disclosed CVEs may reward under-reporting, while feature velocity, platform breadth, or revenue growth provide little insight into security responsiveness.