TOKYO, May 12 : Japan will establish a public-private working group this week to address cybersecurity risks to the financial system posed by Anthropic's new artificial intelligence model Mythos, Finance Minister Satsuki Katayama said on Tuesday. • Katayama, who met U.S. Treasury Secretary Scott Bessent in Tokyo on Tuesday, said the group aims to develop shared understanding of potential threats arising from AI among financial and tech industries and policymakers, with inputs from the U.S.