Korea police open preliminary inquiry into linked hacks at Daishin, Mirae Asset, and Bithumb

The Korean National Police Agency National Office of Investigation (NOI) has opened a preliminary inquiry after a run of hacking incidents at securities firms, asset managers, and virtual asset exchanges. For PSPs and partners in Korea, the point is not just the individual leaks; police are now looking at whether the cases are connected.

1. The NOI began the preliminary inquiry on the morning of the 28th, and the team handling it has previously investigated a series of hacking cases in the financial sector. The police are expected to examine possible links between the incidents.
2. Daishin Securities confirmed abnormal external access to a server tied to non-face-to-face securities account openings for discretionary investment. The company said the personal information of 38,490 customers was leaked.
3. Bithumb said personal information was leaked after abnormal access by an unauthorized external party to its in-house mobile groupware system. It is still checking whether member information was also taken.
4. Mirae Asset Global Investments said certain information related to some business systems was leaked, but so far there has been no leak of customers' personal information.
5. Police are also investigating a separate case involving hacking at 16 financial companies, including banks, savings banks, and capital firms, where about 100,000 items of personal information were leaked.