In 2024, researchers from the University of Illinois found that GPT-4, when provided with a common vulnerabilities and exposures (CVE) description, could autonomously exploit 87% of a curated 15-vulnerability one-day dataset. Without the description, it could only exploit 7%. This provided a “margin of safety” for the industry because while AI could exploit known vulnerabilities, it could not discover them.
However, on April 7, Anthropic announced that Claude Mythos Preview had closed that margin, with the model autonomously discovering thousands of zero-day vulnerabilities across major operating systems and browsers. Separately, Mythos scored 83.1% on the CyberGym vulnerability reproductio...