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Hanyang Securities confirms hacking, customer data leaked

Hanyang Securities confirmed on Nov. 3 that it had detected signs of a hacking attack on Oct. 29 that leaked some customer and employee information, Yonhap and other Korean outlets report. The leaked data includes 15 customer records, 2 employee-related records and 14 general personal records, with names, resident registration numbers, driver's license numbers and account numbers among the exposed information, according to Kyunghyang Shinmun. The brokerage said it is investigating the incident, following a string of recent hacking-related information leaks in the financial sector, including a leak of personal data from 38,490 Daishin Securities customers reported on Oct. 28. Korean media are covering the incident as part of a broader wave of cyberattacks, with reports also noting leaks of personal information of President Lee Jae Myung and presidential staff, as well as at entertainment firm HYBE.

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  4. Personal data of some 38,000 customers at Daishin Securities leaked Korea Times · 2026-10-28
  5. Personal information of Lee, presidential staff leaked: report Korea Times · 2026-11-02

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