Kantsu: ransomware stops Cloud Thomas and other warehouse systems, halting client shipments
On 13 September 2024 logistics provider Kantsu said it had detected server failures from about 6 p.m. the day before and found ransomware on some servers. It cut its network off from clients and the outside. On 25 September it said postal codes, addresses, names, phone numbers and order data registered in its services may have leaked, and that it was building its cloud services in a new environment separate from the damaged one. Its Cloud Thomas warehouse management system and other systems stopped, and e-commerce clients reported delayed or halted shipments and closed sites. In its final report of 18 October it said monitoring of leak sites had found no publication of its data and no leak had been confirmed. Its president told CIO that the attackers got in through a vulnerability in an SSL-VPN device. CHOYA shops reported a possible leak of delivery information on 4,739 people; that is one client subset, not the supplier-wide total.
Disclosed
2024-09-13
Organizations involved
4
Leaked or at risk
4.7K
4,739
Downtime
Unknown
Timeline
- Detected 2024-09-12
- Disclosed 2024-09-13
- 1 days
Attack or cause
- Method
- [Ransomware]
- Impact
- [Service outage][Data leak]
- Entry point
- VPN device
Data exposed or at risk
Supply chain
- Organizations listed on this site
- 4
Services hit
Organizations involved
[Breached][Critical]Hyogo, AmagasakiTransport and postal services
Kantsu HD Co., Ltd.[Through a supplier][Major]Osaka, HabikinoWholesale and retail trade4,739 leaked
CHOYA shops Co., Ltd.Outsourced shipping for its CHOYA umetaiken online shop to Kantsu. Said delivery details (names, addresses, phone numbers) of 4,739 people shipped to between 17 March and 12 September 2024 may have leaked.
[Through a supplier][Major]Osaka, KadomaPersonal services and entertainment
Gamba Osaka Co., Ltd.Outsourced shipping for its official online shop to Felissimo, which used Kantsu's warehouse system. Said buyers' names, addresses and phone numbers may have leaked and closed the shop temporarily.
[Through a supplier][Major]Osaka, HigashiosakaManufacturing
Yamamoto Kogaku Co., Ltd.Its logistics department used Kantsu's warehouse management system. According to ScanNetSecurity, it announced the resulting system failure on 17 September.
Sources
- [1][Official]【第1報】当社におけるサイバー攻撃によるシステムの停止事案発生のお知らせKantsu · 2024-09-13
- [2][Official]個人情報漏洩に関する続報Kantsu
- [3][Official]個人情報漏洩の可能性に関する確報Kantsu · 2024-10-18
- [4][News]物流代行の関通へのサイバー攻撃、システム障害がEC企業に打撃。個人情報漏えいの可能性、配送遅延、サイト停止などNetshop Tantosha Forum · 2024-09-19
- [5][News]サイバー攻撃にさらされた企業経営者が語る対応策の落とし穴CIO · 2025-08-14
- [6][Official]【お詫びとご報告】公式オンラインショップにおける個人情報流出の可能性についてGamba Osaka · 2024-09-18
- [7][Official]公式オンラインショップにおける個人情報流出の可能性についてGamba Osaka · 2024-10-22
- [8][Official]業務委託先への不正アクセスに関するお知らせCHOYA shops · 2024-09-13
- [9][News]山本光学はじめ 8 社に影響 ~ 関通の倉庫管理システムへのランサムウェア攻撃ScanNetSecurity · 2024-09-26