Payments and points

Mos Card

Mos Card (run by Mos Food Services, Inc.) was hit in 1 recorded cybersecurity incident. The latest was disclosed on 2026-10-23.

About the service

		Incident	Role	Impact level				Methods	Impacts		Status
2026-10-23	2026-10-26 12:51	Valuedesign: unauthorized access to the Value Card house e-money service	[Through a supplier]	[Critical]	[Critical]	2 Mos Food Services, Inc., Valuedesign Inc.	Tokyo	[Intrusion][Web app exploit]	[Data leak]	1,424,748	[Contained]

Other incidents of the operator (1)

		Incident				Methods	Impacts		Status
2026-10-27	2026-10-27 17:02	Smartshare: unauthorized access to the OWNLY SNS campaign tool leaks Mos campaign entrants' data	[Major]	2 Mos Food Services, Inc., Smartshare Inc.	Tokyo	[Web app exploit]	[Data leak]	14,034	[Contained]