> JapanHacked_Cybersecurity incidents in Japan

Transport

2Rinkan Road Service

2Rinkan Road Service (run by 2Rinkan Yellow Hat Co., Ltd.) was hit in 1 recorded cybersecurity incident. The latest was disclosed on 2026-11-02.

About the service

Website

https://2rinkan.jp/shop/service/roadservice/

Run by

2Rinkan Yellow Hat Co., Ltd.

Category

Transport

For

People

Incident history

Disclosed 2026-11-02Updated 2026-11-06Chiba, Saitama, Tokyo[Investigating][Severity: Critical][Through a supplier][Moderate]
Prestige Core Solution: up to about 5.5 million records stolen, including three full card numbers
[Intrusion][Data leak][Service outage]Leaked 5.5MOrganizations 18

		Incident	Role	Impact level				Methods	Impacts		Status
2026-11-02	2026-11-06	Prestige Core Solution: up to about 5.5 million records stolen, including three full card numbers	[Through a supplier]	[Moderate]	[Critical]	18 Nissan Financial Services Co., Ltd., Prestige Core Solution Inc., KDDI Corporation, Sompo Japan Insurance Inc., BMW Japan Corp., BMW Japan Finance Corp., ENEOS Corporation, JACCS Co., Ltd., National Mutual Insurance Federation of Agricultural Cooperatives, SBI Insurance Co., Ltd., Subaru Corporation, 2Rinkan Yellow Hat Co., Ltd., AXA General Insurance Company, Limited, cyma Yellow Hat Co., Ltd., Porsche Financial Services Japan K.K., Porsche Japan K.K., Sony Assurance Inc., Zurich Insurance Company	Chiba, Saitama, Tokyo	[Intrusion]	[Data leak][Service outage]	5,500,000	[Investigating]

Other incidents of the operator (1)

Disclosed 2026-04-23Updated 2026-06-19Saitama[Contained][Severity: Critical]
Yellow Hat: 2Rinkan app API data theft
[API abuse][Data leak][Service outage]Leaked 3.5MOrganizations 1

		Incident				Methods	Impacts		Status
2026-04-23	2026-06-19	Yellow Hat: 2Rinkan app API data theft	[Critical]	1 2Rinkan Yellow Hat Co., Ltd.	Saitama	[API abuse]	[Data leak][Service outage]	3,455,754	[Contained]