> JapanHacked_Cybersecurity incidents in Japan

Company

BtcBox Co., Ltd.

BtcBox Co., Ltd. (Chuo, Tokyo; Finance and insurance) appears in 2 related cybersecurity incidents. The latest was disclosed on 2026-02-05.

Profile

Industry/type

Finance and insurance

Location

Tokyo, Chuo

Services

BTCBOX

Website

https://www.btcbox.co.jp/

Public figures

–

Metric	Value	Scope	As of	Source
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Incident history

Disclosed 2026-02-05Updated 2026-02-20 08:05Tokyo[Ongoing][Severity: Major][Breached][Major]
BTCBOX: documents shared with a partner became viewable by third parties and included 39 customers' personal data; all services were suspended and the Kanto Local Finance Bureau ordered a report
[Misconfiguration][Data leak][Service outage]Leaked 39Organizations 1
Disclosed 2021-04-15Updated 2021-04-15 08:38Tokyo[Resolved][Severity: Critical][Breached][Critical]
BtcBox: its web server was accessed without authorization, scam emails posing as the exchange were sent to customers, and ID verification images may have been stolen
[Intrusion][Fraud][Data leak]Organizations 1

		Incident	Role	Impact level				Methods	Impacts		Status
2026-02-05	2026-02-20 08:05	BTCBOX: documents shared with a partner became viewable by third parties and included 39 customers' personal data; all services were suspended and the Kanto Local Finance Bureau ordered a report	[Breached]	[Major]	[Major]	1 BtcBox Co., Ltd.	Tokyo	[Misconfiguration]	[Data leak][Service outage]	39	[Ongoing]
2021-04-15	2021-04-15 08:38	BtcBox: its web server was accessed without authorization, scam emails posing as the exchange were sent to customers, and ID verification images may have been stolen	[Breached]	[Critical]	[Critical]	1 BtcBox Co., Ltd.	Tokyo	[Intrusion]	[Fraud][Data leak]	Unknown	[Resolved]