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Event Brief

NSA uses Anthropic’s Mythos in cyber attacks

The NSA is using Anthropic’s Mythos to conduct cyber attacks as Anthropic fights a legal dispute with the Pentagon over Claude.
WHO: US National Security Agency (NSA)
WHAT: Using Anthropic’s Mythos for cyber attacks
WHEN: Jun 4, 2026 at 2:48 PM ET
WHERE: USA
WHY: Motive not yet established.
How this story developed (showing 2 of 2 earlier reports)

Reporting from 2 identified publishers across this event arc.

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