Incident2026-10-28

South Korea’s financial institutions faced a new wave of cyberattacks. Daishin Securities exposed personal data of 38,490 customers. Mirae Asset Global Investments and Bithumb also reported separate incidents. Officials suspect AI-driven tools may have been used. South Korea’s regulator called for stronger cybersecurity measures. The country will audit dozens of private-sector IT systems. Japan reported a separate incident at GMO Internet the same week. Investigators have not linked the attacks yet.

  • 38,490 customers affected at Daishin Securities

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