> JapanHacked_Cybersecurity incidents in Japan

Company

Marubishi Holdings Co., Ltd.

Marubishi Holdings Co., Ltd. (Mashiki, Kumamoto; Wholesale and retail trade) appears in 1 related cybersecurity incident. The latest was disclosed on 2025-07-28.

Profile

Industry/type: Wholesale and retail trade
Location: Kumamoto, Mashiki
Website: https://www.marubishi-group.co.jp/

Public figures

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Metric	Value	Scope	As of	Source
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Incident history

Disclosed 2025-07-28Updated 2025-08-18 08:05Kumamoto[Contained][Severity: Major][Breached][Major]
Marubishi Holdings: ransomware disabled its business systems, and group staff My Numbers and partner contracts were leaked
[Ransomware][Service outage][Data leak]Organizations 1

		Incident	Role	Impact level				Methods	Impacts		Status
2025-07-28	2025-08-18 08:05	Marubishi Holdings: ransomware disabled its business systems, and group staff My Numbers and partner contracts were leaked	[Breached]	[Major]	[Major]	1 Marubishi Holdings Co., Ltd.	Kumamoto	[Ransomware]	[Service outage][Data leak]	Unknown	[Contained]