Anthropic’s new AI tool impacts us all – whether we want it or not

Anthropic’s new AI tool impacts us all – whether we want it or not

By Guardian staff reporter
Publication Date: 2026-04-10 16:15:00

IIn June 2024, a cyberattack on a pathology services company caused chaos in London hospitals. More than 10,000 appointments have been canceled. There was a blood shortage and delays in blood tests led to the death of a patient.

Fortunately, fatal cyberattacks like this are rare. But a new version of AI could change that – plunging us into a terrible new world of chaos and disruption to the digital systems we rely on.

This week Anthropic, a leading AI company in San Francisco, announced “Claude Mythos Preview,” an AI model that the startup says is too dangerous to release publicly due to its exceptional cybersecurity and cyberattack capabilities. Mythos, the company says, has found vulnerabilities in all major browsers and operating systems. In other words, this new AI model could help hackers disrupt much of the world’s most important software.

“This is Y2K-level alarming,” said one security expert. Mythos has already found a 27-year-old…