Bank of Canada Governor Tiff Macklem said governments and regulators need to move quickly to get a handle on the cybersecurity risks posed by powerful new artificial intelligence tools such as Anthropic’s Claude Mythos model. The emergence of new AI models adept at hacking into secure systems was widely discussed at the spring meetings of the International Monetary Fund and World Bank in Washington over the past week, Mr. Macklem said. San Francisco-based Anthropic announced the Mythos model earlier this month, but opted not to make it widely available because of the risks it presents. The model has shown unprecedented skill at finding and exploiting vulnerabilities in software, according to Anthropic. “This isn’t a one-off. Mythos has arrived, it’s a lot more powerful than what came before. But something else will come that’s even more powerful than that,” Mr. Macklem told reporters on a call from Washington. “As a [financial] system, both within Canada, but internationally, we’re going to need to come to grips with how we’re going to manage this on an ongoing basis.” Artificial Intelligence Minister says Anthropic taking ‘responsible’ approach with Mythos Mr. Macklem said he discussed Mythos with U.S. Federal Reserve Chair Jerome Powell this week, while Finance Minister François-Philippe Champagne talked to his counterpart U.S. Treasury Secretary Scott Bessent. He also said the Canadian Financial Sector Resiliency Group (CFRG), which is chaired by the Bank of Canada and includes representatives from other regulators and Canada’s big banks, met a second time this week to discuss the financial system security implications of Mythos. Questions about the potential impact of Mythos on the financial system emerged last week after Mr. Powell and Mr. Bessent convened a meeting of top U.S. bank CEOs to discuss the issue. News of the meeting sent central banks and regulators around the