INSPECTING ARCHIVED INTELLIGENCE (OUTDATED VERSION).

Village Bank and OK Savings Bank Leaked Customer Information

| 2026-10-13 07:48 CRITICAL LOW DATA BREACH
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Executive Summary
AI-generated
A hacking attack at NongHyup Bank and OK Kookmin Bank has revealed that customer personal information has been leaked, affecting approximately 400 customers from the former bank and 183 customers from the latter. The incident is estimated to be a data breach tactic, with similar IP addresses used in previous Shinhan Bank incidents. Both institutions have reported the incident to financial regulatory authorities, while NongHyup Bank Central Association confirmed that customer names and addresses were partially leaked outside. OK Kookmin Bank's representative website was also compromised, leading to the leakage of customer information through its loan application web page. The Financial Security Institute is currently investigating the matter alongside other relevant agencies.
Technical Mitigations AI-generated
• Block unusual access to overseas internet addresses (IP addresses) using security equipment. • Investigate and patch vulnerabilities in employee support systems or loan counseling and application-related services. • Monitor representative website's loan application web pages for suspicious activity.
Intelligence Metadata
Actors / Malware / CVEs / Campaigns
Target & Sectors
Global Scope financefinance
Incident Timeline
‎2026/10/13
NongHyup Bank Central Association discovered a similar IP address to the one confirmed in the previous Shinhan Bank data breach incident, indicating that NongHyup Bank was targeted by a hacking attack.
organisation Shinhan Bank
NongHyup Bank Central Association discovered a similar IP address to the one confirmed in the previous Shinhan Bank data breach incident.
organisation New Village Bank
New Village Bank and OK Savings Bank also leaked customer information...
organisation OK Savings Bank
New Village Bank and OK Savings Bank also leaked customer information...
organisation NongHyup Bank
A hacking attack at NongHyup Bank and OK Kookmin Bank has revealed that customer personal information has been leaked.
organisation OK Kookmin Bank
A hacking attack at NongHyup Bank and OK Kookmin Bank has revealed that customer personal information has been leaked.
organisation Kookmin Bank
The scope of the incident is estimated to be around 400 NongHyup Bank customers and 183 OK Kookmin Bank customers.
victims 400 Bank customers
The scope of the incident is estimated to be around 400 NongHyup Bank customers and 183 OK Kookmin Bank customers.
According to a 13th report by the financial sector, NongHyup Bank Central Association confirmed that the names and addresses of approximately 400 customers, as well as their resident registration numbers, were partially leaked outside.
organisation NongHyup Bank Central Association
According to a 13th report by the financial sector, NongHyup Bank Central Association confirmed that the names and addresses of approximately 400 customers, as well as their resident registration numbers, were partially leaked outside.
organisation IP
The bank had previously blocked unusual access to overseas internet addresses (IP addresses), but was attacked again using a new IP address, resulting in the leakage of information.
organisation the Financial Security Institute
Financial authorities stated that the recent connection between financial sector hacking incidents has not been confirmed, saying "The Financial Supervisory Service and the Financial Security Institute are currently investigating the matter."
victims 183 customers
The scope of the leakage is currently estimated to be around 183 customers.
Tactical Metrics
Metrics
victims
400
Bank Customers
The scope of the incident is estimated to be around 400 NongHyup Bank customers and 183 OK Kookmin Bank customers.
According to a 13th report by the financial sector, NongHyup Bank Central Association confirmed that the names and addresses of approximately 400 customers, as well as their resident registration numbers, were partially leaked outside.
Metrics
victims
183
Customers
The scope of the leakage is currently estimated to be around 183 customers.
Intelligence Sources
Chosun Economy 2026-10-13