A new cybersecurity mantra has emerged in response to the impending threat of zero-day exploits: assume all systems are unpatched. This mindset shift is driven by Anthropic's Mythos, which forecasts a future where zero-day attacks are commonplace. As a result, vendors and customers must prioritize robust monitoring, behavior-based controls, and virtual patching to stay ahead of potential threats. The window for patching vulnerabilities is rapidly shrinking, making it essential for organizations to assess their exposure immediately1. This proactive approach is crucial in mitigating the risks associated with zero-day exploits, which can have devastating consequences if left unchecked. By adopting a strong monitoring and control framework, organizations can reduce their attack surface and minimize the impact of potential breaches. The assumption of being unpatched serves as a stark reminder of the importance of proactive cybersecurity measures, making it a critical consideration for practitioners seeking to bolster their defenses.