The Chief Information Security Officer (CISO) of a medium-sized business plans to modernize the existing...

CIS benchmarks are the best choice because they provide recognized secure configuration baselines for operating systems, applications, cloud platforms, network devices, and other infrastructure components. A CISO modernizing legacy systems needs a structured way to evaluate current configurations, identify gaps, prioritize weaknesses, and build a risk-based remediation plan. Angry IP Scanner can help discover live hosts, but it does not provide security baselines or modernization guidance. The OWASP Web Security Testing Guide focuses on web application testing, not broad legacy infrastructure. Metasploit is a penetration testing framework and is not the right tool for defining modernization scope. Security+ emphasizes secure baselines, hardening standards, and benchmark-driven configuration review for reducing risk.