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Organizations involved in this incident2025-04-25Sompo Japan: web system intrusion; data may have been exposedOpen the incident

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CompanyFinance and insuranceTokyo, Shinjuku[Breached][Critical]
Sompo Japan Insurance Inc.
Incidents 6Latest 2026-10-05Employees 20,116

	Role
Sompo Japan Insurance Inc.	[Breached]	[Critical]	Company	Finance and insurance	Tokyo, Shinjuku	20,116	–	6	2026-10-05