> JapanHacked_Cybersecurity incidents in Japan

Company

Japan Business Systems, Inc.

Japan Business Systems, Inc. (Minato-ku, Tokyo; Information and communications) appears in 1 related cybersecurity incident. The latest was disclosed on 2025-11-05.

Profile

Industry/type: Information and communications
Location: Tokyo, Minato-ku
Listing: TSE Prime 5036
Website: https://www.jbs.co.jp/

Public figures

Employees2,502Non-consolidated2025-03-25
METI: Gビズインフォ

Metric	Value	Scope	As of	Source
Employees	2,502	Non-consolidated	2025-03-25	METI: Gビズインフォ

Incident history

Disclosed 2025-11-05Updated 2025-12-10 08:05Tokyo[Investigating][Severity: Moderate][Breached][Moderate]
Japan Business Systems: unauthorized access to its systems found through suspicious communication logs, with cause and scope under investigation
[Intrusion]Organizations 1

		Incident	Role	Impact level				Methods	Impacts		Status
2025-11-05	2025-12-10 08:05	Japan Business Systems: unauthorized access to its systems found through suspicious communication logs, with cause and scope under investigation	[Breached]	[Moderate]	[Moderate]	1 Japan Business Systems, Inc.	Tokyo	[Intrusion]		Unknown	[Investigating]