The barrier between nation-state exploit capabilities and those of individual hackers is dissolving, as Anthropic's Mythos Preview large language model can identify severe zero-day vulnerabilities across various code bases and swiftly combine them to create functional exploits. This development is poised to significantly alter the cybersecurity landscape, as it enables broader access to advanced exploit techniques. The model's capabilities will likely render traditional patching windows obsolete, as zero-day exploits can now be generated and deployed rapidly. Organizations must reassess their exposure to such threats immediately, given the potential for widespread exploitation. The implications of this technology are far-reaching, and its availability is expected to dramatically increase the frequency and severity of cyberattacks, so practitioners must prioritize vulnerability assessment and patch management to stay ahead of emerging threats1.