Anthropic Supply Chain Risk Designation Takes Effect; Six-Month Federal Phase-Out Underway

The Pentagon's supply chain risk designation for Anthropic formally took effect this week, triggering a six-month phase-out period during which all federal agencies and defense contractors must certify they do not use Anthropic's Claude models. The designation -- the first ever applied to an American AI company -- stems from Anthropic's refusal to waive contractual restrictions on mass domestic surveillance and autonomous weapons. Defense contractors face compliance deadlines by September 2026.