IC Technology & Surveillance — 2026-04-22

NSA expands use of Anthropic Mythos Preview inside networks as Trump signals possible DOD deal; Pentagon supply-chain-risk designation still in force

TechRadar reported 21 April that the National Security Agency has expanded use of Anthropic's Mythos Preview inside its networks despite the Department of War's March supply-chain-risk designation, with sources saying deployment is "more widely" used. President Trump told reporters the same day that Anthropic is "shaping up" and a DOD deal is "possible," opening space to reverse the blacklist. The DOW has sought unfettered model access for all lawful purposes; Anthropic has pushed for carve-outs against fully autonomous weapons and domestic mass surveillance.

Analysis
Trump's "shaping up" framing (on-record per Reuters) is almost always the preamble to a carve-out rather than a negotiation posture, placing a formal reversal of the supply-chain-risk designation very likely within 30-60 days. The expansion inside NSA networks, reported by a single TechRadar outlet with unnamed sources and no programmatic path identified, converts the policy standoff into an active usage dispute that sharply raises the enforcement cost of the blacklist. That deployment may instead reflect a constrained pilot authority rather than a broad production license, leaving the Pentagon restriction substantively binding despite the headlines, but the operational pressure from AI-assisted vulnerability discovery outpacing defender patch cycles (UK NCSC's current warning) makes prolonged enforcement costly for the IC. The substantive friction remaining is Anthropic's demanded exclusions (no fully autonomous weapons, no domestic mass surveillance), which, if codified in any eventual deal, hand other frontier labs a template to test against future DOD contracting.
2 sources
  1. NSA uses Anthropic Mythos Preview despite Pentagon security concerns - TechRadar
  2. Trump says Anthropic is shaping up, open to deal with Pentagon - KFGO (Reuters)

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