> JapanHacked_Cybersecurity incidents in Japan

Government

Japan Organization of Occupational Health and Safety

Japan Organization of Occupational Health and Safety (Nakahara, Kawasaki, Kanagawa; Medical care and welfare) appears in 1 related cybersecurity incident. The latest was disclosed on 2026-10-28.

Profile

Industry/type: Medical care and welfare
Location: Kanagawa, Kawasaki, Nakahara
Website: https://www.johas.go.jp/

Public figures

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Metric	Value	Scope	As of	Source
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Incident history

Disclosed 2026-10-28Updated 2026-11-06Kanagawa[Contained][Severity: Major][Breached][Major]
JOHAS Gifu center: 3,058 people’s data confirmed leaked; up to 8,074 potentially affected
[Intrusion][Data leak][Service outage]Leaked 8.1KOrganizations 1

		Incident	Role	Impact level				Methods	Impacts		Status
2026-10-28	2026-11-06	JOHAS Gifu center: 3,058 people’s data confirmed leaked; up to 8,074 potentially affected	[Breached]	[Major]	[Major]	1 Japan Organization of Occupational Health and Safety	Kanagawa	[Intrusion]	[Data leak][Service outage]	8,074	[Contained]