Bithumb and three other South Korean financial institutions were hacked, with regulatory authorities launching an investigation.

According to Yonhap News Agency, Bithumb, Mirae Asset Asset Management, and Daishin Securities have confirmed they were hacked, and South Korea’s Financial Supervisory Service (FSS) is investigating the incidents. Bithumb detected on October 27 that its internal mobile office collaboration system was accessed abnormally by unauthorized external parties, leading to a personal data leak. The company is currently analyzing the specific scope of the leak, including whether member information is involved. Daishin Securities announced on October 28 that personal and credit information of 38,490 customers was leaked. The FSS has dispatched an on-site inspection team to the firm and is further verifying cyberattacks on other relevant financial institutions. The FSS Governor stated: As AI is being used as a tool for cyberattacks, security vulnerabilities will be easier to exploit, and multiple simultaneous attacks will become more common. He urged financial institution boards to strengthen their IT security capabilities and prioritize protecting customer assets, information, and financial trust as core responsibilities.