Bithumb Update Hacking Incident: 6,444 Customers' Data Stolen, Personal Information of 844 Leaked

on October 29, Bithumb announced its internal mobile collaboration system, DaouOffice, was accessed without authorization by external parties on October 27, resulting in the theft of partial customer and employee personal information. This incident involved 6,444 customers, with data for 5,600 individuals encrypted and unreadable, while confirmed personal information breaches affected 844 customers; additionally, the information of 715 employees and partner personnel was impacted.

The compromised data may include names, mobile phone numbers, email addresses, resident registration numbers, driver’s license numbers, bank account numbers, and ID card copies. Bithumb emphasized that the breached system operates independently from the trading platform and customer databases. Currently, there is no evidence of direct intrusion into the exchange's service systems, nor any unauthorized access to customer virtual assets as a result. The company has reported the incident to the Korea Internet & Security Agency and the Personal Information Protection Commission, and stated it will provide appropriate support and compensation to customers who have verified suffering losses due to this incident.