Dimon says Anthropic's Mythos raised cybersecurity risk tenfold

By Splitfeed EditorialLast updated Oct 6, 2026, 19:50 UTC

On October 6, 2026, JPMorgan CEO Jamie Dimon made a pointed public statement claiming that Anthropic's AI model Mythos had raised cybersecurity risks by approximately ten times. The warning was picked up the same day by Bloomberg, CNBC TV18, Quartz, Seeking Alpha, TradingView, and PYMNTS.com, all attributing the tenfold figure directly to Dimon. No response from Anthropic was included in any of the available reports, and no additional supporting data or methodology behind the estimate was published alongside the remarks.

The significance of the claim comes partly from who made it. Dimon leads JPMorgan Chase, one of the largest financial institutions in the world and a major target for sophisticated cyberattacks. When a figure in that position attaches a specific multiplier to a named AI product, it carries weight in financial, regulatory, and policy circles in ways that generic AI-risk warnings typically do not. What remains genuinely in dispute is whether the tenfold figure reflects a measurable, documented change in threat activity or whether it is a rhetorical emphasis meant to push regulators and developers toward stricter oversight. The framing also raises questions about whether Mythos specifically introduced new capabilities exploited by threat actors, or whether Dimon was speaking more broadly about AI-enabled cyberattacks as a category.

None of the three camps, Pro-AI, Anti-AI, or Middle Ground, had published reactions at the time of reporting. Pro-AI voices would typically push back on a claim like this by questioning the methodology behind the number and arguing that AI tools also strengthen defensive cybersecurity capabilities. Anti-AI voices would be expected to treat Dimon's statement as confirmation that advanced AI models create serious, concrete harms that outpace existing safeguards. The Middle Ground camp would likely call for independent audits of Mythos and clearer disclosure from Anthropic, treating the claim as a reason for structured oversight rather than either dismissal or alarm.

The most consequential follow-up would be a formal response from Anthropic addressing the specific capabilities of Mythos and whether any internal or third-party security assessments support or contradict Dimon's figure. Congressional or regulatory inquiry directed at either JPMorgan or Anthropic, and any cybersecurity incident reports tied to the model, would also move the argument toward verifiable ground.