Lauren Feiner is a senior policy reporter at The Verge, covering the intersection of Silicon Valley and Capitol Hill. She spent 5 years covering tech policy at CNBC, writing about antitrust, privacy, and content moderation reform. Several US federal agencies are taking up Anthropic’s new cybersecurity model to find vulnerabilities, but one is reportedly not getting in on the action: the nation’s central cybersecurity coordinator. On Tuesday, Axios reported that the Cybersecurity and Infrastructure Security Agency (CISA) didn’t have access to Mythos Preview, which Anthropic has touted as a powerful tool for finding and patching security vulnerabilities. Meanwhile, other agencies like Commerce Department and National Security Agency (NSA) are reportedly using the model, and President Donald Trump’s administration has been negotiating broader access, Axios wrote last week.…