금융보안원（Financial Security Institute）

Attackers used a fake regulator account to breach Korea's Financial Security Institute assessment system, taking files from 48 financial firms

KBS and Yonhap report that the information protection assessment support system of Korea's Financial Security Institute was hacked on November 9, 2026; the institute confirmed some data leaked, blocked the system and reported to the Financial Services Commission, and files from about 48 financial firms, some 130 in total, are estimated to have leaked .