JPMorgan Chase & Co. Chief Executive Officer Jamie Dimon departs the U.S. Capitol in Washington, DC, U.S., on Wednesday, Feb. 25, 2026.
Graeme Sloane Bloomberg | getty images
JPMorgan Chase CEO Jamie Dimon said Tuesday that although artificial intelligence tools may eventually help companies protect themselves from cyberattacks, they are making them more vulnerable at first.
Dimon said JPMorgan was testing Anthropic’s latest model – Mythos Preview announced by the AI ​​firm last week – as part of its broader effort to reap the benefits of AI while protecting against bad actors using similar technology.
“AI has made it worse, it has made it harder,” Dimon told analysts on the bank’s earnings call Tuesday morning. “It creates additional weaknesses, and perhaps in the future, better ways to strengthen ourselves.”
When a reporter asked about Mythos, Dimon mentioned Anthropic’s warning that the model had already found thousands of vulnerabilities in corporate software.
“I think you read exactly what it is,” Dimon said. “This shows that a lot of weaknesses need to be addressed.”
The comments reveal how artificial intelligence, a technology that has been welcomed by corporations as a productivity boon, has turned into a serious threat by giving bad actors new ways to hack into technology systems. Last week, Treasury Secretary Scott Besant called bank CEOs into a meeting to discuss the risks posed by Mythos.
JPMorgan, the world’s largest bank by market cap, has invested heavily over the years to stay ahead of threats, with dedicated teams and constant coordination with government agencies, Dimon said.
“We spend a lot of money. We have top experts. We are in constant touch with the government,” he said. “It’s a full-time job, and we’re doing it all the time.”
‘Attack Mode’
Still, the CEO warned that given the interconnected nature of the financial system, the risks could extend well beyond any single institution.
“It doesn’t mean that everything the banks rely on is well protected,” Dimon said. “Banks … are linked to exchanges and everything else that creates other layers of risk.”
Jeremy Barnum, JPMorgan’s chief financial officer, said the industry has long known that AI cuts both ways when it comes to cybersecurity.
“These tools can make vulnerabilities easier to find, but then can also potentially be deployed in attack mode by bad actors,” Barnum said on the earnings call. Recent advances by Anthropic and others have further accelerated the existing trend, he said.
Dimon also said that advanced AI tools are important, but old-school cybersecurity practices are essential.
“A lot of it is hygiene…how do you protect your data? How do you protect your network, your router, your hardware, change your passcode?” He said. “Doing all those things correctly reduces the risk dramatically.”
Goldman Sachs CEO David Solomon said during an earnings call Monday that his bank is testing Mythos, though he declined to comment further.
