The testimony was the first of its kind in Brussels since the U.S.-based company’s early April decision to restrict its cyber-capable model, Mythos, to a set of trusted American firms. EU institutions have been desperately seeking access to Mythos and Fable, both capable of finding and exploiting software vulnerabilities, thereby putting critical infrastructure at risk.
“I guess you can expect a lot of policy-related questions that perhaps you won’t be able to answer as a technical guy,” said Dutch Greens European Parliament lawmaker Kim van Sparrentak. “And I think Anthropic could have known that.”
After the hearing, van Sparrentak told POLITICO: “It’s clear from this hearing Anthropic doesn’t care about Europe.”
Greenberg joined the AI leader when it acquired his company, Runhouse, earlier this year. He has since been working on Glasswing, the company’s effort to share Mythos with trusted cyber defenders.
“A lot of [lawmakers] would have liked to speak to the political level,” said the Greens’ Anna Cavazzini, the chair of the Parliament’s internal market committee. Meanwhile, Dutch Greens European Parliament lawmaker Reinier van Lanschot told Greenberg: “I find it a bit disappointing that in this exchange we cannot touch on the policy side.”
Cavazzini later warned Anthropic that it should brace for a “next exchange of views we’re definitely having.”