The European security agency's entry to Project Glasswing is the result of "strong bilateral cooperation" between the European Commission and Anthropic.

June 1, 2026

The European Union is close to gaining access to Anthropic's frontier AI model, Mythos, after weeks of pressing for inclusion in Project Glasswing, a tightly controlled initiative that provides select organizations with access to the model for cybersecurity research and vulnerability discovery.

In comments to Dark Reading, European Commission spokesperson for Tech Sovereignty Thomas Regnier confirmed media reports this week about Anthropic agreeing to let EU cybersecurity agency ENISA access Mythos for vulnerability research: "I can confirm that the European Commission had several productive meetings with Anthropic. We welcome the latest developments on potential future access."

By way of background, Claude Mythos Preview is an Anthropic AI model that has raised considerable concern for its ability to not just detect software vulnerabilities but to also autonomously develop exploit chains for them at unmatched speed and scale. Anthropic has reported the model discovering thousands of vulnerabilities in widely used software, including a 27-year-old flaw in OpenBSD and a 17-year-old vulnerability in FreeBSD. Many researchers fear that a tool like Mythos could significantly lower the barrier to discovering and exploiting software vulnerabilities at scale, enabling both state and non-state actors to automate sophisticated cyberattacks faster than most organizations can patch or respond.