"Security Monitoring and Continuous Cybersecurity Improvement," hosted by Edward Henriquez, which covers the final phase of establishing security architecture. This phase focuses on the essential nature of security monitoring to maintain visibility through tools like SIEM systems and intrusion detection software. The script emphasizes that security is an ongoing cycle, detailing continuous improvement practices such as regular control reviews and integrating threat intelligence to adapt to evolving risks. Furthermore, the source highlights the importance of key metrics and feedback loops by listing measurable indicators, including Mean Time to Detect (MTTD) and Mean Time to Respond (MTTR), which track effectiveness and guide subsequent planning and updates. Ultimately, the source concludes that this process is summarized by the repeating cycle: Monitor, Measure, Improve, Repeat.