# Jamie Dimon compares broad Mythos AI access to 'giving ballistic missiles to individuals' JPMorgan CEO highlights cybersecurity risks of Anthropic's Mythos model. - **Source:** [Business Insider](https://www.businessinsider.com) - **Published:** 2026-07-16 - **Topic:** [Data & AI](https://brifing.si/c/data-ai) - **Original article:** - **On Brifing:** https://brifing.si/s/a5dde3b8-e81a-47ab-82f6-c0be17475a4b ## Mythos' dangerous potential JPMorgan CEO Jamie Dimon stated that widespread use of Anthropic's Mythos model could be as dangerous as 'giving ballistic missiles to individuals.' The model's superior ability to detect software vulnerabilities poses serious cybersecurity risks with uncontrolled access. ## Government intervention The US government temporarily blocked access to Mythos 5 and Fable 5 models for a week. Following Commerce Department export restrictions, Anthropic suspended all user access. Access was restored after controls were lifted. ## Limited access for select organizations In April, Anthropic announced that Mythos wouldn't be released publicly due to its powerful ability to find 'high-severity vulnerabilities.' Instead, access would be granted only to select US organizations. ## Fable 5's safety measures Fable 5, released to the public in June, included restrictions on cybersecurity, distillation attacks, and biochemistry topics. However, the government determined these safeguards could be bypassed and blocked access. ## Defense sector reactions Speaking at the Pennsylvania Defense and Innovation Summit, Dimon emphasized that Mythos is a 'real issue' closely monitored by the US government. The summit also featured Trump, Defense Secretary Hegseth, and Palantir officials. ## Responsible AI use The incident reignited global debates about advanced AI models' potential risks and responsible deployment. The balance between companies' security measures and governments' regulatory role has become a top priority in the tech world. ## Sources covering this story - https://www.businessinsider.com/jamie-dimon-anthropic-mythos-access-ballistic-missiles-2026-7 — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._