> JapanHacked_Cybersecurity incidents in Japan

Business SaaS and e-mail

Commune

Commune (run by Commune Inc.) was hit in 1 recorded cybersecurity incident. The latest was disclosed on 2026-10-09.

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Website

https://commune.co.jp/

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Commune for Work

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Business SaaS and e-mail

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Businesses

Incident history

Disclosed 2026-10-09Updated 2026-10-26 18:29Aomori, Hiroshima, Osaka, Shizuoka, Tokyo[Investigating][Severity: Critical][Breached][Critical]
Commune: unauthorized access to the Commune community platform
[Intrusion][Data leak]Leaked 307KOrganizations 12

		Incident	Role	Impact level				Methods	Impacts		Status
2026-10-09	2026-10-26 18:29	Commune: unauthorized access to the Commune community platform	[Breached]	[Critical]	[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]