US security agency is using Anthropic's Mythos despite blacklist, Axios reports - Reuters

Reuters
April 19, 2026
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2 min read

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A US security agency is reportedly using Anthropic's Mythos AI tool despite it being on a government blacklist.

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A US security agency is reportedly using Anthropic's Mythos, an artificial intelligence tool, despite its presence on a government blacklist. This action, reported by Axios, indicates a potential disregard for official prohibitions on certain technologies within federal operations. The use of a blacklisted AI tool by a security agency raises questions about compliance with internal directives and the vetting process for sensitive software. It suggests an agency may be prioritizing perceived operational benefits over established security protocols.

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