> JapanHacked_Cybersecurity incidents in Japan

Company

Gion Co., Ltd.

Gion Co., Ltd. (Chuo, Sagamihara, Kanagawa; Transport and postal services) appears in 1 related cybersecurity incident. The latest was disclosed on 2025-05-01.

Profile

Industry/type: Transport and postal services
Location: Kanagawa, Sagamihara, Chuo
Website: https://kk-gion.co.jp/

Public figures

Employees2,8502025-07-16
METI: Gビズインフォ

Metric	Value		As of	Source
Employees	2,850		2025-07-16	METI: Gビズインフォ

Incident history

Disclosed 2025-05-01Updated 2026-10-23Kanagawa, Tokyo[Resolved][Severity: Major][Breached][Major]
Gion: ransomware in its document management system
[Ransomware][Data leak][Service outage]Leaked 75KOrganizations 2

		Incident	Role	Impact level				Methods	Impacts		Status
2025-05-01	2026-10-23	Gion: ransomware in its document management system	[Breached]	[Major]	[Major]	2 Sompo Japan Insurance Inc., Gion Co., Ltd.	Kanagawa, Tokyo	[Ransomware]	[Data leak][Service outage]	75,000	[Resolved]