Brussels Edition

EU Reaches Out to Anthropic Over Mythos AI Threat

Still-to-be-released model can identify flaws in IT systems, stoking fears about digital attacks

Valdis Dombrovskis, economy commissioner for the European Union (EU), left, and Kyriakos Pierrakakis, president of the Eurogroup, during a news conference following a Eurogroup meeting in Brussels, Belgium, on Monday, May 4, 2026.Photographer: Wiktor Dabkowski/Bloomberg

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By Suzanne Lynch

May 5, 2026 at 1:00 PM UTC

Welcome to the Brussels Edition. I’m Suzanne Lynch, Bloomberg’s Brussels bureau chief, bringing you the latest from the EU each weekday. Make sure you’re signed up.

Concerns around Anthropic’s new artificial intelligence model, Mythos, are reverberating in Europe.

Economy Commissioner Valdis Dombrovskis confirmed yesterday that the EU is in talks with the San Francisco-based tech firm about getting its companies and banks tested for vulnerabilities that Mythos might expose.