2026 Hana Bank — 89 customers via ODS sales support; RRNs/names/contacts/employers
Data compromised
Resident registration numbers, names, addresses, email addresses, phone numbers, and workplace/employer information (Korea Herald / Korea Times)
Technical writeup
Hana Bank confirmed on October 2, 2026 that hackers accessed its ODS sales support system, exposing personal information of 89 customers including resident registration numbers, names, addresses, emails, phones, and employer names. Bank said the system is separate from internet/mobile banking and that financial transaction data was not leaked. It alerted FSS after learning of sector hacking attempts, blocked the linked IP, activated emergency teams, is notifying customers, and pledged full compensation. Part of the Oct 1–2 Korean bank breach wave. companyConfirmed true.
Root cause
Unauthorized access attempt against ODS sales support system (bank disclosure; separate from internet/mobile banking)