JPMorgan Chase & Co. Chairman Jamie Dimon, right, leaves the U.S. Capitol in Washington, DC, USA, on Wednesday, February 25, 2026.
Graeme Sloan | Bloomberg | Getty Images
JPMorgan Chase CEO Jamie Dimon said Tuesday that while artificial intelligence tools could ultimately help companies defend against cyberattacks, they initially make them more vulnerable.
Dimon said JPMorgan is testing Anthropic’s latest model — the Mythos preview announced by the AI firm last week — as part of its broader effort to harness the benefits of AI while protecting itself from malicious actors using the same technology.
“AI has made it worse, it has made it more difficult,” Dimon told analysts on the bank’s conference call Tuesday morning. “It creates additional vulnerabilities and perhaps better opportunities to strengthen yourself later.”
When asked by a reporter about Mythos, Dimon appeared to be referring to Anthropic’s warning that the model had already found thousands of vulnerabilities in enterprise software.
“I think you read exactly what it is,” Dimon said. “It shows that there are many more vulnerabilities that need to be addressed.”
The remarks show how artificial intelligence, a technology embraced by businesses as a productivity advantage, has also become a serious threat by providing new opportunities for malicious actors to break into technology systems. Last week, Treasury Secretary Scott Bessent called bank CEOs into a meeting to discuss the risks posed by Mythos.
JPMorgan, the world’s largest bank by market capitalization, has invested heavily for 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 contact with the government,” he said. “It’s a full-time job and we do it all the time.”
“Attack Mode”
Nevertheless, the CEO warned that the risks due to the interconnectedness of the financial system extend beyond the boundaries of individual institutions.
“That doesn’t mean that everything that banks rely on is so well protected,” Dimon said. “Banks…are tied to stock exchanges and all these other things that create different levels of risk.”
JPMorgan Chief Financial Officer Jeremy Barnum said the industry has long been aware that AI impacts cybersecurity in both directions.
“These tools can make it easier to find vulnerabilities, but can then also potentially be used by malicious actors in attack mode,” Barnum said on the earnings call. Recent advances by Anthropic and others have simply reinforced an existing trend, he said.
Dimon also said that while advanced AI tools are important, old-school cybersecurity practices remain essential.
“A lot of it is hygiene…how do you protect your data? How do you protect your networks, your routers, your hardware, change your passcode?” he said. “If you do all of these things right, the risk is reduced dramatically.”
Goldman Sachs CEO David Solomon said during an earnings conference call Monday that his bank was testing Mythos, but declined further comment.
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