During our last study session, we came across this concept, "Virtual Patching", from a question on the cissp.app, and it seemed a bit strange to some of us. According to OWASP, Virtual patching is a security policy enforcement layer which prevents and reports the exploitation attempt of a known vulnerability. The virtual patch works when the security enforcement layer analyses transactions and intercepts attacks in transit, so malicious traffic never reaches the web application. The Question A CISO must manage legacy systems that cannot be upgraded but contain sensitive data. What strategy best ensures business continuity while mitigating vulnerability risks? A. Implement a segmented network for outdated systems and apply strict firewall rules to limit their network access. B. Upgrade all outdated systems to the latest operating systems, regardless of the cost and downtime. C. Use a virtual patching solution to mitigate vulnerabilities and allow these systems to remain operational while planning for future upgrades. D. Disconnect all outdated systems from the network until they are upgraded or replaced. Answer You may be fixed between options A and C, but in the end, the answer is option C because virtual patching provides a critical layer of protection against attacks, whereas option A, which is the segmentation, only reduces the blast radius or exposure and does not prevent the attack.