A startup co-founded by Gavin Kliger, former Pentagon chief data officer,staffers just broke into Anthropic’s internal systems in under 12 hours. AI agents. third-party software. employee salaries, job offers, meeting transcripts, Slack messages about advanced models. Anthropic says the scope was “limited.” Cathedral says they kept access “to the absolute minimum.” the startup is valued at $1.4 billion. three federal agencies are already their clients. Kliger was involved in the Pentagon’s dispute with Anthropic over Claude’s military use restrictions specifically Anthropic’s refusal to allow fully autonomous lethal operations and mass domestic surveillance. On September 25, a federal appeals court ruled the Pentagon could exclude Anthropic from its supply chain, three federal agencies are already contracted with Cathedral. a DOGE-connected startup, valued at $1.4B, with federal agency contracts, run by someone directly involved in the Pentagon’s clash with Anthropic ran a security test against Anthropic and published findings suggesting access to sensitive internal data.