Government

Cabinet Secretariat

Cabinet Secretariat (Chiyoda, Tokyo; National government) appears in 4 related cybersecurity incidents. The latest was disclosed on 2023-08-04.

Profile

Industry/type: National government
Location: Tokyo, Chiyoda
Website: https://www.cas.go.jp/

Public figures

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Metric	Value	Scope	As of	Source
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Incident history

Disclosed 2023-08-04Updated 2023-08-17 08:00Tokyo[Contained][Severity: Major][Breached][Major]
National Cybersecurity Center: a flaw in a mail system device was exploited and mail data containing personal information may have leaked
[Intrusion][Data leak]Organizations 1
Disclosed 2021-05-20Updated 2022-04-22 12:03Chiba, Kanagawa, Tokyo[Investigating][Severity: Critical][Through a supplier][Major]
Fujitsu: its project information sharing tool ProjectWEB was accessed without authorization and information entrusted by customers was stolen, including data of the Cabinet Secretariat, MLIT, MOFA and Narita International Airport
[Intrusion][Data leak]Organizations 7
Disclosed 2021-04-22Updated 2021-04-28 08:00Tokyo[Resolved][Severity: Critical][Breached][Major]
Cabinet Office: the FileZen file sharing storage used by its staff came under a zero-day attack, and non-public data on 231 people may have leaked
[Intrusion][Data leak]Organizations 2
Disclosed 2021-03-02Updated 2021-06-04 08:18Chiba, Hokkaido, Osaka, Tokyo[Resolved][Severity: Major][Through a supplier][Moderate]
Landbrain: 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 leak
[Ransomware][Extortion]Organizations 11

		Incident	Role	Impact level				Methods	Impacts		Status
2023-08-04	2023-08-17 08:00	National Cybersecurity Center: a flaw in a mail system device was exploited and mail data containing personal information may have leaked	[Breached]	[Major]	[Major]	1 Cabinet Secretariat	Tokyo	[Intrusion]	[Data leak]	Unknown	[Contained]
2021-05-20	2022-04-22 12:03	Fujitsu: its project information sharing tool ProjectWEB was accessed without authorization and information entrusted by customers was stolen, including data of the Cabinet Secretariat, MLIT, MOFA and Narita International Airport	[Through a supplier]	[Major]	[Critical]	7 Fujitsu Limited, Cabinet Secretariat, Ministry of Foreign Affairs, Ministry of Internal Affairs and Communications, Ministry of Land, Infrastructure, Transport and Tourism, Narita International Airport Corporation, National Printing Bureau	Chiba, Kanagawa, Tokyo	[Intrusion]	[Data leak]	Unknown	[Investigating]
2021-04-22	2021-04-28 08:00	Cabinet Office: the FileZen file sharing storage used by its staff came under a zero-day attack, and non-public data on 231 people may have leaked	[Breached]	[Major]	[Critical]	2 Cabinet Office, Cabinet Secretariat	Tokyo	[Intrusion]	[Data leak]	Unknown	[Resolved]
2021-03-02	2021-06-04 08:18	Landbrain: 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 leak	[Through a supplier]	[Moderate]	[Major]	11 Landbrain Inc., Cabinet Secretariat, Ministry of Internal Affairs and Communications, Tokyo Metropolitan Government, Ibaraki City, Kishiwada City, Adachi City, Arakawa City, Asahikawa City, Shibayama Town, Sumida City	Chiba, Hokkaido, Osaka, Tokyo	[Ransomware]	[Extortion]	Unknown	[Resolved]