Axios Reports NSA Use of Mythos Despite Pentagon’s Anthropic Designation
Axios reported NSA use of Mythos Preview despite the Pentagon’s supply-chain-risk designation. The agency’s specific use was unclear, and Reuters said it could not independently verify the report.
Axios reported on April 19 that the NSA was using Anthropic’s Mythos Preview despite the Pentagon’s supply-chain-risk designation. The NSA is part of the Defense Department.
Reuters relayed the report, including a claim of wider use within the department, but explicitly said it could not immediately verify it. Anthropic, the NSA and the Defense Department did not immediately respond to Reuters’ requests for comment.
What remains uncertain#
Axios said the NSA’s specific use was unclear. Its discussion of vulnerability scanning described other organizations, so it does not establish that the NSA was scanning or exploiting its own systems with Mythos.
Reuters also reported that the administration and Anthropic had discussed cooperation following their dispute over how the company’s models could be used. That context does not establish an exemption from procurement restrictions or resolve the legal status of particular deployments.
The operational claim remains sourced reporting, not official confirmation. Reuters’ account is derivative of Axios, not a second independent confirmation.
Correction (October 14, 2026): Corrected the false independent-confirmation claim and the inference that the NSA was using Mythos for vulnerability scanning or exploitation. Removed court, contractor-certification, access-count and meeting details that were not separately verified in this review.