> JapanHacked_Cybersecurity incidents in Japan

Company

Medicare Life Insurance Co., Ltd.

Medicare Life Insurance Co., Ltd. (Koto, Tokyo; Finance and insurance) appears in 1 related cybersecurity incident. The latest was disclosed on 2026-10-28 20:48.

Profile

Industry/type: Finance and insurance
Location: Tokyo, Koto
Also known as: Medicare Life
Website: https://www.medicarelife.com/

Public figures

–

Metric	Value	Scope	As of	Source
–

Incident history

Disclosed 2026-10-28 20:48Updated 2026-10-28 23:15Tokyo[Investigating][Severity: Critical][Through a supplier][Critical]
Sony Life: break-in at its Customer Web Service and other systems leaked about 385,000 records of Medicare Life policies it sold as an agent
[Intrusion][Data leak][Service outage]Leaked 385KOrganizations 2

		Incident	Role	Impact level				Methods	Impacts		Status
2026-10-28 20:48	2026-10-28 23:15	Sony Life: break-in at its Customer Web Service and other systems leaked about 385,000 records of Medicare Life policies it sold as an agent	[Through a supplier]	[Critical]	[Critical]	2 Medicare Life Insurance Co., Ltd., Sony Life Insurance Co., Ltd.	Tokyo	[Intrusion]	[Data leak][Service outage]	385,000	[Investigating]