(16 April 2026 – United Kingdom) The release of Anthropic’s new AI model, Mythos, has prompted swift engagement from banks and regulators after the firm reported discovering critical zero-day vulnerabilities across major operating systems and web browsers.
Following intervention from the US Treasury and the Federal Reserve, Anthropic has begun selectively sharing the model’s capabilities with a small group of leading Wall Street institutions under controlled conditions.
In the UK, authorities including the Financial Conduct Authority, HM Treasury and National Cyber Security Centre have held discussions with banks to assess potential risks to critical financial infrastructure.
Pip White, Anthropic’s Head of EMEA, said: “The engagement that I’ve had from CEOs in the past week in the UK has been significant,” adding that access for UK banks will be granted in a controlled manner in the near term.
Regulatory focus is also intensifying across Europe. The European Central Bank is preparing discussions with regional lenders, while the German Banking Association, Deutsche Bundesbank and BaFin have all raised concerns about the potential implications of the Mythos Preview model.