Parts of NSA lose Mythos 5 access amid Anthropic supply chain dispute
Samuel Boivin/NurPhoto via Getty Images
ByDavid DiMolfetta,
Cybersecurity Reporter, Nextgov/FCW
June 23, 2026 07:43 PM ET
The access issue comes as the Five Eyes alliance is warning that frontier AI could soon accelerate both cyberattacks and cyber defense.
Parts of the National Security Agency have lost access to Anthropic’s Mythos 5 model following a recent Trump administration export control action against the company, though the agency may still retain more limited ways to use the technology, according to two people familiar with the matter.
Some analysts were notified Friday that they would lose access to Mythos, one of the people said. The agency may still be able to use earlier versions of the technology under prior arrangements, even if access to company support, updates or modifications is now more limited, said the second person. Both were granted anonymity to speak freely about the situation.
The change...
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