Japan's bank regulator sets up forum to counter Mythos-powered cyber threats

By Kentaro Okasaka

TOKYO, ‌May 12 (Reuters) - 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. government.

• A total of ⁠36 entities, including financial institutions from megabanks to internet banks, the Bank ​of Japan and the Japanese units of Anthropic and OpenAI, will hold the group's first ​meeting on Thursday, chaired by Mizuho ‌Financial Group's Chief Information Security Officer Osamu Terai, according to the Financial Services Agency (FSA).

• ⁠Anthropic has launched Project Glasswing to offer access to its latest AI model for defensive purposes to a limited number ⁠of organisations. The FSA said interest among Japanese banks in gaining ​access to the model is growing, though it did not clarify whether any have formally sought access.

• The working group will ‌discuss procedures when vulnerabilities are found, defensive measures and contingency planning for scenarios where ‌threats cannot be fully contained, the FSA said. The ⁠regulator also said it ‌is considering information-sharing with ​U.S. and other overseas authorities.

(Reporting by Kentaro Okasaka. Writing by Kantaro Komiya. Editing by Mark ‌Potter)

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