This is a column about Anthropic and AI. My fiancé works at Anthropic. See my full ethics disclosure here . Two weeks ago, Anthropic accidentally leaked the existence of what the company said was its most powerful artificial intelligence to date: a new model, known as Claude Mythos Preview, that represented “a step change” in AI performance. In particular, according to a blog post that leaked due to human error and a misconfigured content management system, Mythos posed serious new risks to cybersecurity. “It presages an upcoming wave of models that can exploit vulnerabilities in ways that far outpace the efforts of defenders,” the blog post stated. On Tuesday, the wave crashed onto the shore. Anthropic announced Mythos alongside Project Glasswing, an initiative with more than 40 of the world’s biggest tech companies that will see Anthropic grant early access to the model to find and patch vulnerabilities across many of the world’s most important systems.…