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Organizations involved in this incident2022-12-23Fujitsu: unauthorized communication hit network devices of its FENICS service, and some emails on the TKC mail service may have been viewed from outsideOpen the incident

11 results

CompanyInformation and communicationsKanagawa, Kawasaki, Nakahara[Breached][Major]
Fujitsu Limited
Incidents 3Latest 2024-03-15Employees 32,224
CompanyManufacturingKyoto, Kyoto, Fushimi[Through a supplier][Major]
KYOCERA Corporation
Incidents 2Latest 2022-12-23Employees 20,608
CompanyConstructionOsaka, Osaka, Kita[Through a supplier][Major]
Sekisui House, Ltd.
Incidents 5Latest 2024-05-24Employees 14,178
CompanyFinance and insuranceTokyo, Chiyoda[Through a supplier][Major]
Tokio Marine & Nichido Fire Insurance Co., Ltd.
Incidents 7Latest 2026-10-21Employees 16,064
CompanyWholesale and retail tradeTokyo, Minato[Through a supplier][Major]
GOLDWIN TRADING CO., LTD.
Incidents 1Latest 2022-12-23
CompanyManufacturingOsaka, Osaka, Chuo-ku[Through a supplier][Major]
Takara Belmont Corporation
Incidents 1Latest 2022-12-23
CompanyInformation and communicationsTochigi, Utsunomiya[Through a supplier][Major]
TKC Corporation
Incidents 2Latest 2026-10-21
CompanyFinance and insuranceTokyo, Chiyoda[Through a supplier][Major]
Tokio Marine & Nichido Life Insurance Co., Ltd.
Incidents 3Latest 2026-10-21
CompanyFinance and insuranceTokyo, Chiyoda[Through a supplier][Major]
Tokio Marine Holdings, Inc.
Incidents 2Latest 2022-12-23
CompanyManufacturingTokyo, Suginami[Through a supplier][Moderate]
IWATSU ELECTRIC CO., LTD.
Incidents 1Latest 2022-12-23Employees 639
CompanyInformation and communicationsKanagawa, Kawasaki, Saiwai-ku[Through a supplier][Moderate]
Fujitsu Cloud Technologies Limited
Incidents 2Latest 2022-12-23

	Role
Fujitsu Limited	[Breached]	[Major]	Company	Information and communications	Kanagawa, Kawasaki, Nakahara	32,224	3	2024-03-15
KYOCERA Corporation	[Through a supplier]	[Major]	Company	Manufacturing	Kyoto, Kyoto, Fushimi	20,608	2	2022-12-23
Sekisui House, Ltd.	[Through a supplier]	[Major]	Company	Construction	Osaka, Osaka, Kita	14,178	5	2024-05-24
Tokio Marine & Nichido Fire Insurance Co., Ltd.	[Through a supplier]	[Major]	Company	Finance and insurance	Tokyo, Chiyoda	16,064	7	2026-10-21
GOLDWIN TRADING CO., LTD.	[Through a supplier]	[Major]	Company	Wholesale and retail trade	Tokyo, Minato	–	1	2022-12-23
Takara Belmont Corporation	[Through a supplier]	[Major]	Company	Manufacturing	Osaka, Osaka, Chuo-ku	–	1	2022-12-23
TKC Corporation	[Through a supplier]	[Major]	Company	Information and communications	Tochigi, Utsunomiya	–	2	2026-10-21
Tokio Marine & Nichido Life Insurance Co., Ltd.	[Through a supplier]	[Major]	Company	Finance and insurance	Tokyo, Chiyoda	–	3	2026-10-21
Tokio Marine Holdings, Inc.	[Through a supplier]	[Major]	Company	Finance and insurance	Tokyo, Chiyoda	–	2	2022-12-23
IWATSU ELECTRIC CO., LTD.	[Through a supplier]	[Moderate]	Company	Manufacturing	Tokyo, Suginami	639	1	2022-12-23
Fujitsu Cloud Technologies Limited	[Through a supplier]	[Moderate]	Company	Information and communications	Kanagawa, Kawasaki, Saiwai-ku	–	2	2022-12-23