Bithumb Details Internal System Breach: 6,444 Customers and 715 Employees Compromised South Korea’s second-largest crypto exchange, Bithumb, disclosed that an unauthorized external intrusion into its internal corporate groupware (DaouOffice) for approximately one hour on October…
resulted in the exfiltration of personal data belonging to 6,444 customers. The compromised records include names, mobile numbers, resident registration numbers, bank account numbers, and copies of identification documents—of which 5,600 records remained encrypted and unreadable, while data belonging to 844 customers was directly exposed, alongside records of 715 employees and external personnel
Bithumb emphasized that the breached groupware is completely isolated from its core trading operations and asset databases, ensuring that customer funds remain secure, while noting it has formally notified authorities and pledged full compensation for any verified damages resulting from the incident. — link