Shinhan Bank hack exposes data of 25000 customers

The breach was discovered on October 1, 2026, after the bank detected unauthorized external access through its mobile website and related services. According to reports, the attack likely continued from around September 29 into the early hours of September 30. The Financial Supervisory Service launched an on-site investigation to determine the full scope and cause of the incident. Shinhan Bank said it had not received reports of financial losses tied to the breach at the time of reporting.