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Anthropic’s Mythos AI Reportedly Hacked the NSA’s Most Sensitive Systems ‘in Hours’

Anthropic's Mythos AI model reportedly accessed highly sensitive U.S. government and NSA systems within hours during a security exercise. This event preceded a U.S. government ban on foreign access to the company's top-tier models. The crackdown has led to lawsuits from a legal tech firm and an Anthropic customer.

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What changed

Reports now link a specific red-team evaluation on June 11 to the subsequent U.S. export ban.

Live updates

  1. Anthropic Mythos AI Reportedly Breached NSA Systems During Testing

    Anthropic's Mythos AI model reportedly accessed highly sensitive U.S. government and NSA systems within hours during a security exercise. This event preceded a U.S. government ban on foreign access to the company's top-tier models. The crackdown has led to lawsuits from a legal tech firm and an Anthropic customer.

    What's confirmed:

    • A U.S. official stated an Anthropic AI model identified vulnerabilities in highly sensitive U.S. government computer systems during testing.
    • The U.S. government has banned foreign nationals from accessing Fable 5 and Mythos 5.
    • The U.S. export ban on Anthropic AI models has affected South Korea.
    • A legal tech firm and an Anthropic customer have filed lawsuits against the U.S. over the loss of access to AI models.

    Still unconfirmed:

    • Mythos AI infiltrated nearly all NSA classified systems within a few hours during an authorized red-team evaluation on June 11.
    • A phone call from Amazon CEO Andy Jassy triggered the chaos of the Anthropic crackdown.
    confidence 80%