
bbc.com
April 22, 2026
3 min read
29/100
Summary
Anthropic is investigating a claim of unauthorized access to its Claude Mythos AI tool, which is described as too powerful for public release. The investigation was prompted by a report indicating that a small group accessed the tool through a third-party vendor environment.
Key Takeaways

'Too Dangerous to Release' Is Becoming AI's New Normal
Apr 25, 2026

US summons bank bosses over cyber risks from Anthropic's latest AI model
Apr 10, 2026

A leak reveals that Anthropic is testing a more capable AI model "Claude Mythos"
Mar 27, 2026

After dissing Anthropic for limiting Mythos, OpenAI restricts access to Cyber
May 1, 2026

Opus 4.6 uncovers 500 zero-day flaws in open-source code
Feb 5, 2026