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StoryData breachhigh

Korean firms disclose fresh hacks; Daishin confirms 38,490 exposed

2 sources · 2 articlesFirst reported Updated ()1
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First merged summary.

Merged summary · x-ai/grok-4.7 · rewritten as coverage arrivesSummaries by Vani AI

Daishin confirmed exposure of 38,490 customers’ data; Bithumb and Mirae have not confirmed theft while authorities investigate.

Bithumb, Daishin Securities, and Mirae Asset Global Investments disclosed cybersecurity incidents on Tuesday, about a month after earlier attacks on South Korean financial firms. Bithumb found a breach of its in-house employee mobile system, notified KISA and the Personal Information Protection Commission, and is checking whether member data leaked; it believes holdings were not targeted. Daishin said names, emails, and phone numbers of 38,490 customers were exposed and notified them. Mirae and Bithumb have not confirmed theft, and the Financial Services Commission urged stronger measures plus checks of dozens of private-sector systems. Earlier October attacks hit at least 16 institutions and were tied to about 100,000 leak cases; researchers link a September wave to a suspected China-based hacker using Artex.

Key facts
  • Bithumb breached its employee mobile system and notified KISA and the privacy commission.
  • Daishin exposed names, emails, and phone numbers of 38,490 customers.
  • Mirae Asset and Bithumb have not confirmed that customer data was taken.
  • Earlier October attacks hit at least 16 Korean firms, about 100,000 leak cases.
  • Researchers link a September wave to a suspected China-based hacker using Artex.
  • The Financial Services Commission plans checks of dozens of private-sector IT systems.
Analyze this story with Vani AIImpact, who is affected and what defenders should do, in a new chat

What each outlet adds

beyond the shared facts
  • DataBreaches.netBithumb employee mobile breach, regulator notices, and the earlier 16-firm wave.
  • TechCrunchDaishin data fields, FSC system checks, and suspected Artex-linked September actor.
Malware
Artex
Victims
Daishin SecuritiesMirae Asset Global InvestmentsBithumb
Organizations
Financial Services CommissionKorea Internet & Security AgencyPersonal Information Protection Commission
Countries
South Korea

Coverage

oldest first · one row per article · UTC
  1. · 2d ago DataBreaches.netFirst report

    Bithumb discloses employee-system breach amid other Korean finance hacks

    The exchange is still checking whether member data leaked; Daishin reported about 38,490 affected customers.

  2. · 2d ago TechCrunch · Security

    South Korean financial firms hit by another wave of cyberattacks

    Daishin says names, emails, and phone numbers of 38,490 customers were exposed; Mirae and Bithumb have not confirmed theft.