Hackers Just Broke Into Anthropic's Most Dangerous AI

A small group of hackers quietly broke into Claude Mythos — Anthropic's most powerful AI model, the one the company said was too dangerous to release to the public. They had access from day one. They weren't a nation-state. They weren't criminals. They were hobbyists in a Discord server. And Anthropic never actually got hacked. Here's what really happened — and why every AI company should be paying attention. Anthropic announced Claude Mythos Preview this month as part of Project Glasswing, a restricted deployment to just twelve enterprise partners including Amazon, Apple, Microsoft, Google, JPMorgan, and Cisco. The company said Mythos could "surpass all but the most skilled humans at finding and exploiting software vulnerabilities." The UK AI Security Institute independently confirmed the capability — Mythos became the first AI to autonomously complete their 32-step corporate attack simulation. Then Bloomberg broke the story: unauthorized users had been inside the model since the day it launched. They reverse-engineered the API endpoint using data from an earlier supply-chain breach at Mercor — a $10 billion AI contracting startup that supplies human experts to Anthropic, OpenAI, Meta, and Google. Then they logged in with legitimate credentials belonging to a third-party contractor. The model's weights are safe. The model wasn't stolen. But the lesson is bigger: the attack surface of a frontier AI isn't the model itself. It's everyone the lab has to trust to build and evaluate it. All of this happened the same week Anthropic's CEO Dario Amodei met with the White House Chief of Staff and Treasury Secretary about federal agency access, the NSA was reportedly already using Mythos despite the Pentagon blacklisting Anthropic, and OpenAI's Sam Altman went scorched earth on a podcast — accusing Anthropic of "fear-based marketing" and saying they were "selling a bomb shelter for $100 million" for a bomb they built themselves. This story is a window into how frontier AI security actually works in 2026 — and where it's already failing. 🔔 Subscribe for more deep dives on AI news, safety, and the companies racing to build the future. What's covered in this video: What Claude Mythos actually is, and why Anthropic called it too dangerous to release Project Glasswing — the twelve companies Anthropic trusted with early access The UK AI Security Institute's independent evaluation of Mythos's cyber capabilities How a Discord group got inside on day one — without ever hacking Anthropic The Mercor supply-chain breach that handed over the keys Why the White House is quietly negotiating federal access while the Pentagon fights in court The NSA's rumored use of Mythos despite the DOD's blacklist of Anthropic Sam Altman's scorched-earth podcast appearance attacking Anthropic's marketing What this means for Anthropic's Responsible Scaling Policy — and for every AI lab Patent Resources: - My best-selling book, Patents Demystified: https://amzn.to/2MX5le9 - The top book on licensing your idea or invention: https://amzn.to/3tDLSib (One Simple Idea by Stephen Key) - When to file a patent application: https://www.dwt.com/blogs/startup-law-blog/2020/08/when-to-file-startup-patent-application - Is software patentable: https://www.dwt.com/blogs/startup-law-blog/2020/11/how-to-patent-software - My appearance on CNBC’s “The Profit” with Marcus Lemonis: https://www.cnbc.com/video/2019/11/08/coco-taps-owner-reviews-their-pending-patent-with-marcus-lemonis.html Gear Used to Make This Video: Panasonic LUMIX GH7 - https://amzn.to/3ZiaYom Neewer 230W Video Light - https://amzn.to/3Zrln18 Godox Softbox - https://amzn.to/3VmxHOU Aputure Amaran RGB Tube Lights - https://amzn.to/49n84mX Shure SM58 Microphone - https://amzn.to/4icAvYN Panasonic LUMIX DMW-XLR2 XLR Mic Adaptor - https://amzn.to/3ZAXULW Shure SM57 Windscreen - https://amzn.to/49hPpsx Neewer LED Panel Light - https://amzn.to/3VZwPNn StudioFX Rim/Back Light - https://amzn.to/3GLSZ1u ***** DISCLAIMER: Information in this video is not legal advice and should not be relied on as such. The law can change and the information in this video may be outdated, so you should always consult an attorney regarding your specific issues in view of the current state of the law. ******