Company

M3, Inc.

M3, Inc. (Minato, Tokyo; Information and communications) appears in 1 related cybersecurity incident. The latest was disclosed on 2026-10-15.

Profile

Industry/type

Information and communications

Location

Tokyo, Minato

Services

Website

https://corporate.m3.com/

Metric	Value		As of	Source
Employees	750	Non-consolidated	2026-03-31	METI: Gビズインフォ
Revenue	¥47.2B	Non-consolidated	2026-03-31	METI: Gビズインフォ
Capital	¥29.4B	Non-consolidated	2026-03-31	METI: Gビズインフォ

		Incident	Role	Impact level				Methods	Impacts		Status
2026-10-15	2026-10-23	M3: unauthorized access to the MR-kun service for drug makers	[Breached]	[Major]	[Major]	1 M3, Inc.	Tokyo	[Intrusion]	[Data leak]	Unknown	[Investigating]