Company

LY Corporation

LY Corporation (Chiyoda, Tokyo; Information and communications) appears in 2 related cybersecurity incidents. The latest was disclosed on 2026-10-09.

Profile

Industry/type

Information and communications

Location

Tokyo, Chiyoda

Services

Listing

TSE Prime 4689

Website

https://www.lycorp.co.jp/ja/

Metric	Value		As of	Source
Employees	10,577	Non-consolidated	2026-03-31	METI: Gビズインフォ
Revenue	¥769.5B	Non-consolidated	2026-03-31	METI: Gビズインフォ
Capital	¥252.1B	Non-consolidated	2026-03-31	METI: Gビズインフォ

		Incident	Role	Impact level				Methods	Impacts		Status
2026-10-09	2026-10-26 18:29	Commune: unauthorized access to the Commune community platform	[Through a supplier]	[Major]	[Critical]	12 Commune Inc., Aomori Prefectural Government, LY Corporation, Mazda Motor Corporation, Panasonic Corporation, Suzuki Motor Corporation, Yamaha Motor Co., Ltd., Bandai Namco Experience Inc., Koike-ya Inc., Morinaga Milk Industry Co., Ltd., Sansan, Inc., Yamaha Corporation	Aomori, Hiroshima, Osaka, Shizuoka, Tokyo	[Intrusion]	[Data leak]	307,000	[Investigating]
2024-02-14	2026-10-23	LY Corporation: contractor accounts misused; 57,611 staff-related records may have leaked	[Breached]	[Major]	[Major]	1 LY Corporation	Tokyo	[Credential abuse]	[Data leak]	57,611	[Contained]