Coinone Says Customer Personal Data Leaked After Vendor Hack

Summary

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Customer personal data at South Korean cryptocurrency exchange Coinone was exposed after a third-party contractor handling customer support was hacked.

In a notice posted on November 15, Coinone said it confirmed that an outside attacker gained unauthorized access to servers operated by MetaM, its outsourced customer-service provider, at around 4 a.m. on November 12 and viewed or leaked customer support information.

The information that may have been exposed includes names, phone numbers, email addresses, dates of birth, bank account numbers, passwords, resident registration numbers and wallet addresses that customers provided during consultations. The specific data leaked may differ by customer. Users with no history of contacting the customer center were not affected.