> JapanHacked_Cybersecurity incidents in Japan

Company

Tokyu Land Corporation

Tokyu Land Corporation (Shibuya, Tokyo; Real estate and rental) appears in 2 related cybersecurity incidents. The latest was disclosed on 2026-10-30.

Profile

Industry/type

Real estate and rental

Location

Tokyo, Shibuya

Services

Website

https://www.tokyu-land.co.jp/

Public figures

–

Metric	Value	Scope	As of	Source
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Incident history

Disclosed 2026-10-30Updated 2026-10-30Tokyo[Contained][Severity: Major][Breached][Major]
Tokyu Land: unauthorized access to a shared AWS server of managed websites may expose 4,082 personal records
[Web app exploit][Misconfiguration][Data leak][Service outage]Leaked 4.1KOrganizations 1
Disclosed 2026-10-16Updated 2026-10-30Aichi, 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 36

		Incident	Role	Impact level				Methods	Impacts		Status
2026-10-30	2026-10-30	Tokyu Land: unauthorized access to a shared AWS server of managed websites may expose 4,082 personal records	[Breached]	[Major]	[Major]	1 Tokyu Land Corporation	Tokyo	[Web app exploit][Misconfiguration]	[Data leak][Service outage]	4,079	[Contained]
2026-10-16	2026-10-30	Studio: unauthorized access to the cloud environment of the Studio website builder	[Through a supplier]	[Major]	[Critical]	36 Digital Agency, Nagoya City, Studio Inc., Chiba Prefectural Government, Hiroshima Prefecture, Nagano Prefectural Government, Money Forward, Inc., Niigata City, Akatsuki Inc., Akatsuki Media Studio Inc., Akatsuki Solutions Inc., Akatsuki Ventures Inc., and US Inc., Fuller, Inc., Hakky Inc., JIJ Inc., Link-U Group Inc., Luup, Inc., Money Forward Home, Inc., Money Forward Kessai, Inc., Money Forward X, Inc., Monicle Financial Inc., Monicle Research 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., Tokyu Land Corporation, TVer Inc., Zenmetry Corporation	Aichi, Chiba, Fukushima, Hiroshima, Kochi, Miyagi, Nagano, Niigata, Tokyo, Toyama	[Web app exploit]	[Data leak]	Unknown	[Investigating]