NEW YORK — Bank of America brought in 1,000 outside contractors to help patch software vulnerabilities exposed by advanced artificial intelligence models, including Anthropic's Mythos, CEO Brian Moynihan said, offering one of the first detailed looks at what major companies are spending to defend against AI-driven cyber risks.

In an interview with CNBC after the bank released third-quarter earnings on Wednesday, Moynihan said the company rushed earlier this year to shore up a wide range of internal and vendor software using thousands of employees and outside personnel.

"We put on 1,000 contractors to help us do the patching work in the second quarter, and those people remain here today, helping us, on top of the 3,000 people we have in that area," Moynihan said.

Moynihan said the arrival of powerful new AI models prompted an urgent response from the bank and others in the industry.

"That risk is real risk, and that's why when the frontier-type models came out," Moynihan told CNBC's Leslie Picker. He said many in the industry sat down to figure out how to get through the issue quickly.

Mythos, Anthropic's most advanced model, was released in April to a small group of banks, technology companies and........

© International Business Times