CEX NEWS reports that Bithumb disclosed that its internal collaboration system was breached by an external party for about an hour on October 27, resulting in the leak of personal data belonging to 6,444 customers, including names, phone numbers, national ID numbers, bank account numbers, and copies of identity documents. Of these, 5,600 records remain encrypted and unreadable, while the data of 844 customers was directly exposed. Records belonging to another 715 employees and external personnel were also affected. Bithumb said the collaboration system is completely isolated from its core trading and asset databases, customer funds are safe, relevant authorities have been notified, and it will fully compensate verified losses.