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NSA Is Using Anthropic’s Mythos Despite Pentagon Blacklist

The move highlights a split inside government on how to weigh urgent cyber defense against a Pentagon blacklist.

Overview

  • Axios reported that the National Security Agency is using Anthropic’s Mythos Preview even as the Pentagon labels the company a “supply chain risk.”
  • Access to Mythos remains tightly limited to about 40 vetted partners due to concerns that its hacking skills could be misused.
  • It is not clear how the NSA runs the tool, but other approved users task it with scanning their own networks for exploitable software flaws.
  • Anthropic CEO Dario Amodei met White House chief of staff Susie Wiles and Treasury Secretary Scott Bessent, and both sides called the discussion on guarded government use productive.
  • The company is challenging the Pentagon’s designation in court, where one judge granted a narrow injunction and another let the label stand, leaving the case unresolved.