Company

Toho Gas Co., Ltd.

Toho Gas Co., Ltd. (Atsuta, Nagoya, Aichi; Electricity, gas, heat and water) appears in 1 related cybersecurity incident. The latest was disclosed on 2026-10-16.

Profile

Industry/type

Electricity, gas, heat and water

Location

Aichi, Nagoya, Atsuta

Services

Ielab

Website

https://www.tohogas.co.jp/

Public figures

–

Metric	Value		As of	Source
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Incident history

Disclosed 2026-10-16Updated 2026-10-27 19:58Aichi, Chiba, Fukushima, Hiroshima, Kochi, Miyagi, Nagano, Niigata, Tokyo, Toyama[Investigating][Severity: Critical][Through a supplier][Major]
Studio: unauthorized access to the cloud environment of the Studio website builder
[Web app exploit][Data leak]Organizations 28

		Incident	Role	Impact level				Methods	Impacts		Status
2026-10-16	2026-10-27 19:58	Studio: unauthorized access to the cloud environment of the Studio website builder	[Through a supplier]	[Major]	[Critical]	28 Digital Agency, Nagoya City, Studio Inc., Chiba Prefectural Government, Hiroshima Prefecture, Nagano Prefectural Government, Money Forward, Inc., Niigata City, and US Inc., Hakky Inc., JIJ Inc., Link-U Group Inc., Luup, Inc., Money Forward Home, Inc., Money Forward Kessai, Inc., Money Forward X, Inc., RAKSUL Inc., ReFact Inc., Relic Inc., SmartHR, Inc., StoryHub Inc., Susaki City, Tamura City, ThinQ Healthcare Inc., Toho Gas Co., Ltd., Tohoku EPCO Frontier Co., Inc., TVer Inc., Zenmetry Corporation	Aichi, Chiba, Fukushima, Hiroshima, Kochi, Miyagi, Nagano, Niigata, Tokyo, Toyama	[Web app exploit]	[Data leak]	Unknown	[Investigating]