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Possibility of leakage of personal information by a contractor

Last Updated July 18, 2024

Press release materials

July 18, 2024

Water Works Bureau Water Distribution Division

Yomei Ashikaga

Phone number: 045-671-3063

Fax: 045-212-1167

Tokyo Gas Engineering Solutions Co., Ltd. (Minato-ku, Tokyo). Following the unauthorized access of the network of TGES from outside, Water Works Bureau discovered that data containing personal information that should have been erased to the company at the time of outsourcing the development of mapping systems, remained on the server, making it possible to view the information externally.

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Inquiries to this page

Distribution Division, Water Works Bureau Distribution Department

Telephone: 045-671-3064

Telephone: 045-671-3064

Fax: 045-212-1167

Email address: su-haisui@city.yokohama.lg.jp

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Page ID: 346-831-060

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