By Daniel Howley
Publication Date: 2026-04-07 18:01:00
Anthropic (ANTH.PVT) on Tuesday announced a cybersecurity partnership with companies including Amazon (AMZN), Apple (AAPL), and Microsoft (MSFT) that it said will help defend against the rise of AI-powered cyberattacks.
Called Project Glasswing, the initiative relies on Anthropic’s new Claude Mythos Preview, a frontier model that the company said will only be made available to a handful of organizations. A group of roughly 40 other companies that work on critical software infrastructure will be able to use the model to secure their own software and open-source offerings.
Anthropic said Claude Mythos Preview is already proving effective at detecting software vulnerabilities, stating that the AI has “identified thousands of zero-day vulnerabilities, many of them critical.”
Zero-day vulnerabilities are previously unknown errors in software that developers need to address before they can be exploited, or errors that have already been exploited by attackers and need to be fixed before they can cause any more harm.
It’s also detected flaws in every major operating system and web browser, and found one software bug that was 27 years old, and another that’s 16 years old.
“Given the rate of AI progress, it will not be long before such capabilities proliferate, potentially beyond actors who are committed to deploying them safely. Project Glasswing is a starting point,” Anthropic said in a statement.
