> JapanHacked_Cybersecurity incidents in Japan

Company

Tokyu Community Corp.

Tokyu Community Corp. (Setagaya, Tokyo; Real estate and rental) appears in 2 related cybersecurity incidents. The latest was disclosed on 2025-06-20.

Profile

Industry/type: Real estate and rental
Location: Tokyo, Setagaya
Website: https://www.tokyu-com.co.jp/

Public figures

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Metric	Value	Scope	As of	Source
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Incident history

Disclosed 2025-06-20Updated 2025-08-22 16:49Tokyo[Resolved][Severity: Major][Through a supplier][Major]
System Exe: ransomware leaked partner personal data and login details, including about 14,000 member records entrusted by Tokyu Community
[Ransomware][Data leak]Organizations 2
Disclosed 2021-03-29Updated 2021-04-01 08:00Tokyo[Resolved][Severity: Major][Breached][Major]
Tokyu Community: a former employee took data on about 5,000 apartment residents from the management system in two rounds and gave it to an outside company
[Insider][Data leak]Leaked 5KOrganizations 1

		Incident	Role	Impact level				Methods	Impacts		Status
2025-06-20	2025-08-22 16:49	System Exe: ransomware leaked partner personal data and login details, including about 14,000 member records entrusted by Tokyu Community	[Through a supplier]	[Major]	[Major]	2 System Exe Co., Ltd., Tokyu Community Corp.	Tokyo	[Ransomware]	[Data leak]	Unknown	[Resolved]
2021-03-29	2021-04-01 08:00	Tokyu Community: a former employee took data on about 5,000 apartment residents from the management system in two rounds and gave it to an outside company	[Breached]	[Major]	[Major]	1 Tokyu Community Corp.	Tokyo	[Insider]	[Data leak]	5,000	[Resolved]