> JapanHacked_Cybersecurity incidents in Japan

Company

IwaiCosmo Securities Co., Ltd.

IwaiCosmo Securities Co., Ltd. (Chuo, Osaka, Osaka; Finance and insurance) appears in 1 related cybersecurity incident. The latest was disclosed on 2026-10-16.

Profile

Industry/type: Finance and insurance
Location: Osaka, Osaka, Chuo
Website: https://www.iwaicosmo.co.jp/

Public figures

–

Metric	Value		As of	Source
–

Incident history

Disclosed 2026-10-16Updated 2026-10-24 03:56Osaka, Tokyo[Contained][Severity: Critical][Through a supplier][Critical]
Trade Works: unauthorized access leaks IwaiCosmo Securities customer data and places orders
[Intrusion][Misconfiguration][Data leak][Fraud][Financial loss]Leaked 5KOrganizations 2

		Incident	Role	Impact level				Methods	Impacts		Status
2026-10-16	2026-10-24 03:56	Trade Works: unauthorized access leaks IwaiCosmo Securities customer data and places orders	[Through a supplier]	[Critical]	[Critical]	2 IwaiCosmo Securities Co., Ltd., Trade Works Co., Ltd.	Osaka, Tokyo	[Intrusion][Misconfiguration]	[Data leak][Fraud][Financial loss]	4,975	[Contained]