Anthropic Is Warning About Future Cyber Risks. Researchers Says Claude Code Is Already Dangerous.

April 13, 2026 Zeinab Shariff

UPSTARTS

The Upshot

Yesterday, Anthropic announced a large-scale initiative to essentially wall off its own latest frontier AI model with yellow caution tape.

The unreleased model, called Claude Mythos Preview, is already so powerful a cybersecurity tool that it identified thousands of ‘high-severity’ vulnerabilities across every major operating system and web browser, including the one you’re probably using to read this article, Anthropic said.

In response, Anthropic announced Project Glasswing, an initiative looping in more than 40 companies like Amazon, Apple, Google, Microsoft, NVIDIA and JPMorgan Chase to early Mythos Preview access, along with $100 million in usage credits, so they could start to address these weak links.

For startups, that means business as usual, right? The coalition of the giants is on it. No need to worry about hypothetical issues now being addressed by some of the world’s biggest cybersecurity teams.

The reality: when it comes to cyber risks, Anthropic’s already-released tools, including the hyper-popular Claude Code, are plenty powerful as it is – as demonstrated by a new report out today from a cybersecurity startup, LayerX.

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