According to Yonhap News Agency, Bithumb, South Korea's second-largest cryptocurrency exchange, confirmed that its internal mobile groupware system suffered unauthorized external access, leading to a personal data breach. The exchange discovered the incident on October 27 and is currently investigating whether customer information was compromised. Additionally, two other South Korean financial institutions, Mirae Asset Global Investments and Daishin Securities, also confirmed cyber intrusions. Daishin Securities disclosed that personal and credit information of 38,490 customers was leaked. The Financial Supervisory Service (FSS) of South Korea is investigating these incidents.