Fact Check Team: Anthropic’s Mythos AI raises cybersecurity promise, but poses risk WASHINGTON (TNND) — A powerful new artificial intelligence model is drawing attention in the tech and cybersecurity world — not just for what it can do, but for how it could be used if it falls into the wrong hands. Anthropic, one of the leading AI firms, is developing an experimental system known as “Mythos.” Unlike consumer-facing AI tools, this model is not publicly available. Instead, it’s being quietly tested with a small group of major companies due to concerns over its capabilities. A Tool Built for Cybersecurity — and Potential Exploitation At its core, Mythos is designed to excel at cybersecurity tasks. According to Anthropic, the model has already identified thousands of high-severity software vulnerabilities, including flaws in widely used operating systems and web browsers. In some cases, the system has even demonstrated the ability to identify and exploit so-called “zero-day” vulnerabilities — previously unknown weaknesses that can be especially dangerous if discovered by malicious actors. Independent testing by the UK AI Security Institute underscores both the promise and the risk. Evaluators found the model succeeded in expert-level cybersecurity challenges roughly 73% of the time and, in certain scenarios, could carry out complex, multi-step simulated cyberattacks from start to finish. However, those tests were conducted in controlled environments — not against real-world, highly defended systems. Why Access Is Being Restricted Because of these capabilities, Anthropic and other AI companies are taking a cautious approach. Rather than releasing Mythos publicly, access is limited to a small group of major tech firms, including Google, Amazon, Apple, and Microsoft. The goal is to test the system while minimizing the risk of misuse. The company has also launched “Project Glasswing,” an initiative focused on using advanced AI capabilities for defensive cybersecurity