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Organizations involved in this incident2021-03-02Landbrain: its servers were infected with ransomware and data it held for more than 200 government bodies may have leaked; the investigation found no clear trace of a leakOpen the incident

11 results

CompanyScientific research, professional and technical servicesTokyo, Chiyoda[Breached][Major]
Landbrain Inc.
Incidents 1Latest 2021-03-02Employees 272
GovernmentNational governmentTokyo, Chiyoda[Through a supplier][Moderate]
Cabinet Secretariat
Incidents 4Latest 2023-08-04
GovernmentNational governmentTokyo, Chiyoda[Through a supplier][Moderate]
Ministry of Internal Affairs and Communications
Incidents 2Latest 2021-05-20
GovernmentPrefectureTokyo[Through a supplier][Moderate]
Tokyo Metropolitan Government
Incidents 9Latest 2026-10-21
GovernmentMunicipalityOsaka, Ibaraki[Through a supplier][Moderate]
Ibaraki City
Incidents 2Latest 2026-10-21
GovernmentMunicipalityOsaka, Kishiwada[Through a supplier][Moderate]
Kishiwada City
Incidents 2Latest 2026-10-21
GovernmentMunicipalityTokyo, Adachi[Through a supplier][Moderate]
Adachi City
Incidents 1Latest 2021-03-02
GovernmentMunicipalityTokyo, Arakawa[Through a supplier][Moderate]
Arakawa City
Incidents 1Latest 2021-03-02
GovernmentMunicipalityHokkaido, Asahikawa[Through a supplier][Moderate]
Asahikawa City
Incidents 1Latest 2021-03-02
GovernmentMunicipalityChiba, Shibayama[Through a supplier][Moderate]
Shibayama Town
Incidents 1Latest 2021-03-02
GovernmentMunicipalityTokyo, Sumida[Through a supplier][Moderate]
Sumida City
Incidents 1Latest 2021-03-02

	Role
Landbrain Inc.	[Breached]	[Major]	Company	Scientific research, professional and technical services	Tokyo, Chiyoda	272	1	2021-03-02
Cabinet Secretariat	[Through a supplier]	[Moderate]	Government	National government	Tokyo, Chiyoda	–	4	2023-08-04
Ministry of Internal Affairs and Communications	[Through a supplier]	[Moderate]	Government	National government	Tokyo, Chiyoda	–	2	2021-05-20
Tokyo Metropolitan Government	[Through a supplier]	[Moderate]	Government	Prefecture	Tokyo	–	9	2026-10-21
Ibaraki City	[Through a supplier]	[Moderate]	Government	Municipality	Osaka, Ibaraki	–	2	2026-10-21
Kishiwada City	[Through a supplier]	[Moderate]	Government	Municipality	Osaka, Kishiwada	–	2	2026-10-21
Adachi City	[Through a supplier]	[Moderate]	Government	Municipality	Tokyo, Adachi	–	1	2021-03-02
Arakawa City	[Through a supplier]	[Moderate]	Government	Municipality	Tokyo, Arakawa	–	1	2021-03-02
Asahikawa City	[Through a supplier]	[Moderate]	Government	Municipality	Hokkaido, Asahikawa	–	1	2021-03-02
Shibayama Town	[Through a supplier]	[Moderate]	Government	Municipality	Chiba, Shibayama	–	1	2021-03-02
Sumida City	[Through a supplier]	[Moderate]	Government	Municipality	Tokyo, Sumida	–	1	2021-03-02