Assume that you work for an organization that has around 10,000 desktops/laptops and approximately 1,000 servers spread throughout the world. A new "zero-day" vulnerability is discovered, and warnings are sent out by major security firms (Zero-day vulnerabilities are recently discovered previously unknown system or software weaknesses). This vulnerability affects 90 percent of your systems, including the servers. How should the organization go about prioritizing mitigation efforts once the vulnerability is announced? What steps should the organization have taken to identify these systems prior to this incident?