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Anthropic’s Mythos AI broke into almost all NSA classified systems in hours (securityaffairs.com)

submitted 6 hours ago by lemmydev2@infosec.pub to c/pulse_of_truth@infosec.pub

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Senate testimony claims Anthropic’s Mythos AI breached NSA and Cyber Command systems in hours, prompting a U.S.-ordered shutdown. On June 12, the Trump administration directed Anthropic to restrict access to Fable 5 and Mythos 5, its two most capable models, exclusively to US citizens. Because verifying every user’s nationality in real time isn’t practically possible, […]

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[–] dparticiple@sh.itjust.works 1 points 5 hours ago

Without getting in to the politics or morals of AI, my first question to those who make statements like "it's just fancy autocomplete", or "AIs always hallucinate" is when they last used an AI tool, and which model(s) they used. The answer is often that they tried ChatGPT when it came out, thought it was a neat toy, and haven't experimented much with it since then.

Most regular people aren't paying for AI tools yet, and don't have professions that bring them into regular direct contact with frontier AI models. They're far from from perfect, and not AGI/ASI, but family and friends have been astonished when I've shown them Fable 5, GPT-5.5 doing things they understand with long-running agentic actions.