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Organizations involved in this incident2026-10-16Studio: unauthorized access to the cloud environment of the Studio website builderOpen the incident

28 results

GovernmentNational governmentTokyo, Chiyoda[Through a supplier][Critical]
Digital Agency
Incidents 2Latest 2026-10-16
GovernmentMunicipalityAichi, Nagoya, Naka[Through a supplier][Critical]
Nagoya City
Incidents 4Latest 2026-10-21
CompanyInformation and communicationsTokyo, Meguro[Breached][Critical]
Studio Inc.
Incidents 2Latest 2026-10-21Employees 77
GovernmentPrefectureChiba, Chiba, Chuo[Through a supplier][Major]
Chiba Prefectural Government
Incidents 3Latest 2026-10-21
GovernmentPrefectureHiroshima, Hiroshima, Naka[Through a supplier][Major]
Hiroshima Prefecture
Incidents 3Latest 2026-10-21
GovernmentPrefectureNagano, Nagano[Through a supplier][Major]
Nagano Prefectural Government
Incidents 3Latest 2026-10-21
CompanyInformation and communicationsTokyo, Minato[Through a supplier][Major]
Money Forward, Inc.
Incidents 2Latest 2026-10-16Employees 1,707
GovernmentMunicipalityNiigata, Niigata, Chuo[Through a supplier][Major]
Niigata City
Incidents 2Latest 2026-10-21
CompanyManufacturingToyama, Toyama[Through a supplier][Major]
and US Inc.
Incidents 1Latest 2026-10-16
CompanyInformation and communicationsTokyo, Shinjuku[Through a supplier][Major]
Hakky Inc.
Incidents 1Latest 2026-10-16
CompanyInformation and communicationsTokyo, Minato[Through a supplier][Major]
JIJ Inc.
Incidents 1Latest 2026-10-16
CompanyInformation and communicationsTokyo, Chiyoda[Through a supplier][Major]
Link-U Group Inc.
Incidents 1Latest 2026-10-16Employees 35
CompanyReal estate and rentalTokyo, Shinagawa[Through a supplier][Major]
Luup, Inc.
Incidents 1Latest 2026-10-16Employees 128
CompanyInformation and communicationsTokyo, Minato[Through a supplier][Major]
Money Forward Home, Inc.
Incidents 1Latest 2026-10-16
CompanyFinance and insuranceTokyo, Minato[Through a supplier][Major]
Money Forward Kessai, Inc.
Incidents 1Latest 2026-10-16
CompanyInformation and communicationsTokyo, Minato[Through a supplier][Major]
Money Forward X, Inc.
Incidents 1Latest 2026-10-16
CompanyInformation and communicationsTokyo, Minato[Through a supplier][Major]
RAKSUL Inc.
Incidents 1Latest 2026-10-16
CompanyInformation and communicationsTokyo, Minato[Through a supplier][Major]
ReFact Inc.
Incidents 2Latest 2026-10-22
CompanyScientific research, professional and technical servicesTokyo, Shibuya[Through a supplier][Major]
Relic Inc.
Incidents 1Latest 2026-10-16Employees 220
CompanyInformation and communicationsTokyo, Minato[Through a supplier][Major]
SmartHR, Inc.
Incidents 1Latest 2026-10-16
CompanyInformation and communicationsTokyo, Minato[Through a supplier][Major]
StoryHub Inc.
Incidents 1Latest 2026-10-16Employees 2
GovernmentMunicipalityKochi, Susaki[Through a supplier][Major]
Susaki City
Incidents 1Latest 2026-10-16
GovernmentMunicipalityFukushima, Tamura[Through a supplier][Major]
Tamura City
Incidents 1Latest 2026-10-16
CompanyInformation and communicationsTokyo, Minato[Through a supplier][Major]
ThinQ Healthcare Inc.
Incidents 1Latest 2026-10-16
CompanyElectricity, gas, heat and waterAichi, Nagoya, Atsuta[Through a supplier][Major]
Toho Gas Co., Ltd.
Incidents 1Latest 2026-10-16
CompanyElectricity, gas, heat and waterMiyagi, Sendai, Aoba[Through a supplier][Major]
Tohoku EPCO Frontier Co., Inc.
Incidents 2Latest 2026-10-21
CompanyInformation and communicationsTokyo, Minato[Through a supplier][Major]
TVer Inc.
Incidents 1Latest 2026-10-16Employees 150
CompanyInformation and communicationsTokyo, Minato[Through a supplier][Major]
Zenmetry Corporation
Incidents 1Latest 2026-10-16

	Role
Digital Agency	[Through a supplier]	[Critical]	Government	National government	Tokyo, Chiyoda	–	–	2	2026-10-16
Nagoya City	[Through a supplier]	[Critical]	Government	Municipality	Aichi, Nagoya, Naka	–	–	4	2026-10-21
Studio Inc.	[Breached]	[Critical]	Company	Information and communications	Tokyo, Meguro	77	–	2	2026-10-21
Chiba Prefectural Government	[Through a supplier]	[Major]	Government	Prefecture	Chiba, Chiba, Chuo	–	–	3	2026-10-21
Hiroshima Prefecture	[Through a supplier]	[Major]	Government	Prefecture	Hiroshima, Hiroshima, Naka	–	–	3	2026-10-21
Nagano Prefectural Government	[Through a supplier]	[Major]	Government	Prefecture	Nagano, Nagano	–	–	3	2026-10-21
Money Forward, Inc.	[Through a supplier]	[Major]	Company	Information and communications	Tokyo, Minato	1,707	–	2	2026-10-16
Niigata City	[Through a supplier]	[Major]	Government	Municipality	Niigata, Niigata, Chuo	–	–	2	2026-10-21
and US Inc.	[Through a supplier]	[Major]	Company	Manufacturing	Toyama, Toyama	–	–	1	2026-10-16
Hakky Inc.	[Through a supplier]	[Major]	Company	Information and communications	Tokyo, Shinjuku	–	–	1	2026-10-16
JIJ Inc.	[Through a supplier]	[Major]	Company	Information and communications	Tokyo, Minato	–	–	1	2026-10-16
Link-U Group Inc.	[Through a supplier]	[Major]	Company	Information and communications	Tokyo, Chiyoda	35	–	1	2026-10-16
Luup, Inc.	[Through a supplier]	[Major]	Company	Real estate and rental	Tokyo, Shinagawa	128	–	1	2026-10-16
Money Forward Home, Inc.	[Through a supplier]	[Major]	Company	Information and communications	Tokyo, Minato	–	–	1	2026-10-16
Money Forward Kessai, Inc.	[Through a supplier]	[Major]	Company	Finance and insurance	Tokyo, Minato	–	–	1	2026-10-16
Money Forward X, Inc.	[Through a supplier]	[Major]	Company	Information and communications	Tokyo, Minato	–	–	1	2026-10-16
RAKSUL Inc.	[Through a supplier]	[Major]	Company	Information and communications	Tokyo, Minato	–	–	1	2026-10-16
ReFact Inc.	[Through a supplier]	[Major]	Company	Information and communications	Tokyo, Minato	–	–	2	2026-10-22
Relic Inc.	[Through a supplier]	[Major]	Company	Scientific research, professional and technical services	Tokyo, Shibuya	220	–	1	2026-10-16
SmartHR, Inc.	[Through a supplier]	[Major]	Company	Information and communications	Tokyo, Minato	–	–	1	2026-10-16
StoryHub Inc.	[Through a supplier]	[Major]	Company	Information and communications	Tokyo, Minato	2	–	1	2026-10-16
Susaki City	[Through a supplier]	[Major]	Government	Municipality	Kochi, Susaki	–	–	1	2026-10-16
Tamura City	[Through a supplier]	[Major]	Government	Municipality	Fukushima, Tamura	–	–	1	2026-10-16
ThinQ Healthcare Inc.	[Through a supplier]	[Major]	Company	Information and communications	Tokyo, Minato	–	–	1	2026-10-16
Toho Gas Co., Ltd.	[Through a supplier]	[Major]	Company	Electricity, gas, heat and water	Aichi, Nagoya, Atsuta	–	–	1	2026-10-16
Tohoku EPCO Frontier Co., Inc.	[Through a supplier]	[Major]	Company	Electricity, gas, heat and water	Miyagi, Sendai, Aoba	–	–	2	2026-10-21
TVer Inc.	[Through a supplier]	[Major]	Company	Information and communications	Tokyo, Minato	150	–	1	2026-10-16
Zenmetry Corporation	[Through a supplier]	[Major]	Company	Information and communications	Tokyo, Minato	–	–	1	2026-10-16