According to CoinMeta, Wu said that on November 15, the South Korean cryptocurrency exchange Coinone announced that its outsourced customer service provider Metam's servers were invaded by external attackers on November 12, resulting in the leakage of some customers' personal information. The potentially leaked information includes names, phone numbers, email addresses, bank account numbers, passwords, resident registration numbers, home addresses, cryptocurrency wallet addresses, and transaction identification codes (txid), among other 11 types of data. The specific items of information leaked vary from customer to customer, and the number of affected individuals has not yet been disclosed. Coinone stated that its user accounts, transaction systems, and cryptocurrency wallet systems operate independently from third-party servers, and so far, no signs of direct intrusion into these systems have been found. The company has severed the illegal access paths and has reported the incident to the Korea Internet and Communications Agency, the Personal Information Protection Commission, and the Financial Services Commission.