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Data breach

Series of hacks exposes about 100,000 records at 16 Korean financial firms

First reported · Last reported · 454 related reports

A series of hacks and data leaks hit South Korea's financial sector, including banks, securities firms and capital finance companies. As of October 14, 16 financial firms had been affected and about 100,000 records had been leaked. Financial authorities held an emergency meeting across the financial sector to assess the damage, and an emergency review meeting was held on October 28 to prevent secondary harm.

Key facts

Affected organization
Being confirmed
Incident type
Data breach
Occurred / detected
Not confirmed
Scale of damage
16 financial firms breached and about 100,000 records leaked
Cause / method
External hacking, with the possibility of AI-assisted attacks raised
Location
South Korea

If your data was exposed

Exposed dataNational ID numberBank account

  1. Turn on deposit and withdrawal alerts in your banking app. You can check all accounts in your name at once and request a payment suspension if needed.Account Info (integrated account management) ↗
  2. Block new mobile phone activations in your name, and register with the Financial Supervisory Service as a person whose personal data was exposed to strengthen identity checks on financial transactions in your name. If a copy of your ID was leaked, consider having it reissued.Identity theft prevention service (M-Safer) ↗Personal data exposure accident prevention system ↗
  3. If you’ve suffered harm, report it. Call 118 (no area code) for privacy violations, contact the police for financial losses, and apply for dispute mediation to seek compensation.Personal Information Infringement Report Center ↗Korean National Police Agency cybercrime report ↗Personal Information Dispute Mediation Committee ↗

Timeline

  1. Hacking incidents were confirmed at banks including KB Kookmin Bank, Hana Bank and BNK Busan Bank.
  2. Financial authorities held an emergency meeting across the financial sector to assess the damage from the hacks.
  3. Breaches were recorded at 16 financial firms, with about 100,000 records leaked.
  4. The Seoul Serious Crime Investigation Office notified police stations that it would not open an investigation into the financial institution hacking cases and that they should continue investigating.
  5. The Blue House held an emergency review meeting to prevent secondary harm from the financial sector hacks.
  6. It emerged that 31 personal information records, including resident registration numbers and account numbers, had been leaked at Hanyang Securities.

454 related reports

The summary and key facts are written by AI from related reports and may contain errors. Check the original articles and the organization’s official statements for accurate details.