Over the last two weeks, both Anthropic and OpenAI made their most significant moves yet into offensive and defensive cybersecurity. Anthropic released Mythos Preview – limiting access to roughly 40 organizations precisely because the model was considered too dangerous to release widely. OpenAI followed days later with GPT-5.4-Cyber, a purpose-built cyber-permissive variant of GPT-5.4, rolled out through its Trusted Access for Cyber program. Meanwhile, Anthropic launched Project Glasswing, an industry coalition including Google, aimed at coordinating the ecosystem’s response to what these models make possible.

Full opinion : The AI cybersecurity boom may be creating a bigger problem than it solves.