The Japan Financial Services Agency published an overview of a press conference in which Finance Minister Katayama said Japan, including some financial institutions, has been included in Anthropic's Project Glasswing under a prior understanding with the U.S. Treasury. He said the arrangement gives Japan access to Claude Mythos Preview, described as a frontier AI model, for cybersecurity-related work, and that preparations by Financial Services Agency staff are mostly complete. Katayama said he understands that access rights have already become available, although he did not specify when testing will begin. He did not identify the participating financial institutions, their number or any vendors involved, citing private contractual arrangements, and indicated that not all financial institutions are included. He linked the exercise to stronger cyber defences for institutions exposed to cross-border activity and economic crime, including fraud and money laundering, and said lessons from the tests could help develop broader defensive methods.
Japan Financial Services Agency2026-06-05
Japan Financial Services Agency reports Anthropic Project Glasswing access for Japan and some financial institutions
The Japan Financial Services Agency reported that Finance Minister Katayama confirmed Japan, including some financial institutions, has joined Anthropic’s Project Glasswing under an understanding with the U.S. Treasury, gaining access to the Claude Mythos Preview frontier AI model for cybersecurity work. Access rights are now available and preparations are largely complete, with the initiative aimed at strengthening cyber defences against cross-border economic crime, fraud and money laundering and informing broader defensive methods.