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Organizations involved in this incident2023-10-04ETC Usage Inquiry Service: mass access from overseas IP addresses, and some accounts were logged in without authorizationOpen the incident

6 results

CompanyTransport and postal servicesAichi, Nagoya, Naka-ku[Breached][Major]
Central Nippon Expressway Company Limited
Incidents 1Latest 2023-10-04
CompanyTransport and postal servicesTokyo, Chiyoda[Breached][Major]
East Nippon Expressway Company, Limited
Incidents 3Latest 2026-10-23
CompanyTransport and postal servicesOsaka, Osaka, Kita-ku[Breached][Major]
Hanshin Expressway Company Limited
Incidents 1Latest 2023-10-04
CompanyTransport and postal servicesHyogo, Kobe, Chuo-ku[Breached][Major]
Honshu-Shikoku Bridge Expressway Company Limited
Incidents 1Latest 2023-10-04
CompanyTransport and postal servicesTokyo, Chiyoda[Breached][Major]
Metropolitan Expressway Co., Ltd.
Incidents 1Latest 2023-10-04
CompanyTransport and postal servicesOsaka, Osaka, Kita-ku[Breached][Major]
West Nippon Expressway Company Limited
Incidents 1Latest 2023-10-04

	Role
Central Nippon Expressway Company Limited	[Breached]	[Major]	Company	Transport and postal services	Aichi, Nagoya, Naka-ku	–	1	2023-10-04
East Nippon Expressway Company, Limited	[Breached]	[Major]	Company	Transport and postal services	Tokyo, Chiyoda	–	3	2026-10-23
Hanshin Expressway Company Limited	[Breached]	[Major]	Company	Transport and postal services	Osaka, Osaka, Kita-ku	–	1	2023-10-04
Honshu-Shikoku Bridge Expressway Company Limited	[Breached]	[Major]	Company	Transport and postal services	Hyogo, Kobe, Chuo-ku	–	1	2023-10-04
Metropolitan Expressway Co., Ltd.	[Breached]	[Major]	Company	Transport and postal services	Tokyo, Chiyoda	–	1	2023-10-04
West Nippon Expressway Company Limited	[Breached]	[Major]	Company	Transport and postal services	Osaka, Osaka, Kita-ku	–	1	2023-10-04