OpenAI and Anthropic kicked off a new arms race for cyber defense - Business Insider

Ah, the cybersecurity arms race has entered what security experts are now calling an 'AI fog'—which is consultant-speak for 'we have absolutely no idea what's about to hit us.' Anthropic's Mythos and OpenAI's GPT‑5.5 have kicked off a fresh wave of terror, with CISOs peering into the fog and seeing nothing but their own terrified faces reflected back. The arms race we previously covered has escalated to the point where defenders are now begging for scraps of visibility while attackers—presumably—are already running Mythos in their basements.

Business Insider reports that the 'AI fog' metaphor is being used to describe the inability of security teams to distinguish between AI-generated attacks and legitimate traffic. Meanwhile, Anthropic's Mythos has already been rewiring the bug-bounty industry, churning out thousands of zero-days while human hunters are still booting up their Kali Linux VMs. So, naturally, the solution from OpenAI and Anthropic is to release even more capable models—because nothing says 'defense' like handing a flamethrower to both sides and calling it a day.

One can only imagine the 'fog' thickening as every script kiddie on Telegram starts renting access to GPT‑5.5-Cyber. But never fear—the labs promise they're building safety measures. Probably in the same boardroom where they decided to release the models first and ask questions later. The only certainty in this fog is that someone's about to step on a rake. Hard.