Company

Mitsui Home Co., Ltd.

Mitsui Home Co., Ltd. (Koto, Tokyo; Construction) appears in 1 related cybersecurity incident. The latest was disclosed on 2026-10-26.

Profile

Industry/type

Construction

Location

Tokyo, Koto

Services

Website

https://www.mitsuihome.co.jp/

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Metric	Value	Scope	As of	Source
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		Incident	Role	Impact level				Methods	Impacts		Status
2026-10-26	2026-11-09	Sonicmoov: COMSBI Enterprise breach leaks about 450,000 LINE user IDs and other data of two UCC group companies	[Through a supplier]	[Major]	[Critical]	5 Coffee Style UCC Co., Ltd., Sonicmoov Co., Ltd., Matsue City, Mitsui Home Co., Ltd., UCC Ueshima Coffee Co., Ltd.	Hyogo, Shimane, Tokyo	[Credential abuse]	[Data leak][Service outage]	449,442	[Investigating]