INSPECTING ARCHIVED INTELLIGENCE (OUTDATED VERSION).

Dusit Thani Business Hit by Leaked Member Personal Information Hack

| 2026-10-31 18:59 LOW LOW DATA BREACH
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Executive Summary
AI-generated
A security breach at Doosan Bizon's backup service has led to a possible leak of personal information of the Korea Ladies Professional Golf Association (KLPGA) members, with leaked data believed to include names, resident registration numbers, and addresses. The incident occurred on October 29, when KLPGA received a notification from Doosan Bizon regarding a security breach related to its accounting system APO backup service. As a result of the leak, there is a risk of secondary damage such as identity theft or phishing, according to the Korea Chamber of Commerce and Industry (KBCI), which has warned individuals to be cautious of unknown phone calls, texts, and emails, and not to click on suspicious links or provide personal information. The investigation into the possible leak is ongoing, with KLPGA requesting Doosan Bizon to confirm the extent of the leak and the specific range of affected members, who are estimated to be around 1,000 individuals.
Technical Mitigations AI-generated
• Review and patch Doosan Bizon's APO backup service to address the security breach. • Implement additional protective measures, including encryption status confirmation for resident registration numbers. • Block or hunt for suspicious links related to unknown phone calls, texts, and emails.
Intelligence Metadata
Actors / Malware / CVEs / Campaigns
Target & Sectors
Global Scope
Incident Timeline
‎October 29
Threat actors used the APO backup service to target Doosan Bizon's accounting system, prompting a notification on October 29.
organisation APO
The KLPGA has posted a notice on its official website, stating that it has received a notification from Doosan Bizon on October 29 regarding a security breach related to its accounting system APO backup service.
‎2026/10/31
The Korea Ladies Professional Golf Association (KLPGA) is investigating the possibility that its members' personal information was leaked due to a security breach at Doosan Bizon's backup service.
organisation KLPGA
Exclusive: KLPGA, Dusit Thani Business On, Hack Incident Official Notification...
organisation Hack Incident Official Notification
Exclusive: KLPGA, Dusit Thani Business On, Hack Incident Official Notification...
organisation The Korea Ladies Professional Golf Association
The Korea Ladies Professional Golf Association (KLPGA) has announced that there is a possibility that the personal information of its members may have been leaked due to a security breach at Doosan Bizon's backup service.
organisation the Korea Chamber of Commerce and Industry (
The KLPGA has stated that it is reviewing related content after receiving a notification of the incident and has requested the Korea Chamber of Commerce and Industry (KBCI) to confirm the actual leakage of information and the extent of the damage.
organisation KBCI
The KLPGA has stated that it is reviewing related content after receiving a notification of the incident and has requested the Korea Chamber of Commerce and Industry (KBCI) to confirm the actual leakage of information and the extent of the damage.
Intelligence Sources
Dailysecu 2026-10-31