Company

COO Company, Limited

COO Company, Limited (Sumida, Tokyo; Wholesale and retail trade) appears in 1 related cybersecurity incident. The latest was disclosed on 2026-06-19.

Profile

–

Metric	Value		As of	Source
–

		Incident	Role	Impact level				Methods	Impacts		Status
2026-06-19	2026-10-23	Delightful: unauthorized access to the Meruhaikun email delivery system	[Through a supplier]	[Major]	[Critical]	4 Delightful Inc., COO Company, Limited, Kaze Travel Inc., Twinkle World, Inc.	Osaka, Tokyo	[Web app exploit][Intrusion]	[Data leak][Service outage]	1,679,242	[Contained]