Three South Korean financial firms including Bithumb report data breaches, Yonhap says


The words "Data Breach" and PHP code are displayed on a screen in this illustration taken on October 22, 2026. REUTERS/Dado Ruvic/Illustration

SEOUL, Oct 28 (Reuters) - ⁠Three South Korean financial firms reported data ⁠breaches on Wednesday, the Yonhap News ‌Agency said.

Here are some details:

• Crypto exchange Bithumb said its in-house mobile system had been hacked and personal information ​leaked, Yonhap reported. It was ⁠investigating whether member ⁠data was included.

• Brokerage Daishin Securities said about ⁠38,000 ‌pieces of customer information had been leaked and that it had taken ⁠emergency measures, according to Yonhap.

• Asset manager ​Mirae Asset ‌Global Investments had also confirmed a hacking ⁠incident, and ​authorities were assessing the situation, the report said.

• Spokespeople for Bithumb, Daishin and Mirae Asset could ⁠not be immediately reached for ​comment.

• The incidents follow a wave of hacking attacks at 16 South Korean financial firms, including ⁠banks, causing around 100,000 cases of data leaks so far, according to the Financial Services Commission (FSC) earlier this month.

• Separately, Seoul's Science ​Ministry and the Korea Internet & ⁠Security Agency have urged website operators to check ​for PHP flaws. The ‌flaws let attackers run malicious ​commands on a server without logging in.

(Reporting by Joyce LeeEditing by Ed Davies)

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