The personal information of a suburban Tokyo resident who filed freedom of information requests on a sinkhole accident was leaked nine times between June and October 2021 in local government communications with affiliated parties, it has emerged. The 74-year-old resident submitted the request in connection with an October 2020 incident in which a large hole opened up in the road along a tunnel construction route for the Tokyo Outer Ring Road. His name and other personal information were disclosed by the Chofu Municipal Government to three parties affiliated with the work on the road. Leaking information from which individuals who filed the right-to-information requests can be identified is an act that rocks the disclosure system's foundational aims for open administration.