Company

Ymirlink, Inc.

Ymirlink, Inc. (Shibuya, Tokyo; Information and communications) appears in 1 related cybersecurity incident. The latest was disclosed on 2026-10-19.

Profile

Industry/type

Information and communications

Location

Tokyo, Shibuya

Services

Listing

TSE Growth 4372

Website

https://www.yumillink.co.jp/

Metric	Value		As of	Source
Employees	141	Non-consolidated	2025-12-31	METI: Gビズインフォ
Revenue	¥2.9B	Non-consolidated	2025-12-31	METI: Gビズインフォ
Capital	¥273.9M	Non-consolidated	2025-12-31	METI: Gビズインフォ

		Incident	Role	Impact level				Methods	Impacts		Status
2026-10-19	2026-10-27 17:02	Ymirlink: unauthorized access to the Cuenote FC email delivery service	[Breached]	[Critical]	[Critical]	15 Central Japan Railway Company, Kyushu Railway Company, West Japan Railway Company, Ymirlink, Inc., Dai Nippon Printing Co., Ltd., Nomura Securities Co., Ltd., istyle Inc., NTTPC Communications, Inc., The Asahi Shimbun Company, Cybozu, Inc., Kansai Mirai Bank, Limited, The Mainichi Newspapers Co., Ltd., Resona Bank, Limited, Saitama Resona Bank, Limited, ValueCommerce Co., Ltd.	Aichi, Fukuoka, Osaka, Saitama, Tokyo	[Web app exploit]	[Data leak]	51,628,280	[Investigating]