Privacy Unpacked

Country

Data breaches in South Korea

8 breaches on record · plus 1 claimed only by attackers, shown faint on the map

This week
8
30 days
8
2026 so far
8
People exposed, 90 days
51,350

What was taken most often

  • Email addresses5
  • Phone numbers5
  • Names5
  • Card and bank details2
  • Home addresses1
  • Passwords and logins1

The number of breaches in which each kind of data was exposed, where the source said.

The largest

  1. HollysKRSouth Korea · 23 October 2026 Personal informationCustomer information 2.8Mcustomer records
  2. Daishin SecuritiesKRSouth Korea · 27 October 2026 Financial account and card detailsEmail addressesPhone numbers+4 38.5Kcustomers
  3. Yonsei UniversityKRSouth Korea · 21 October 2026 Passwords and loginsEmail addressesPhone numbers+4 10Kpeople
  4. KB Kookmin BankKRSouth Korea · 26 October 2026 Credit information 2.2Kpeople
  5. BithumbKRSouth Korea · 27 October 2026 Email addressesPhone numbersNames+2 650employees

Every breach, newest first

  1. Daishin SecuritiesKRSouth Korea · 27 October 2026 Financial account and card detailsEmail addressesPhone numbers+4 38.5Kcustomers
  2. BithumbKRSouth Korea · 27 October 2026 Email addressesPhone numbersNames+2 650employees
  3. KB Kookmin BankKRSouth Korea · 26 October 2026 Credit information 2.2Kpeople
  4. Nol UniverseKRSouth Korea · 25 October 2026 Email addressesPhone numbersMember IDs+11 –not reported
  5. SpoonKRSouth Korea · 25 October 2026 Financial account and card detailsEmail addressesPhone numbers+1 –not reported
  6. Mirae Asset Life InsuranceKRSouth Korea · 25 October 2026 Personal credit informationPersonal and credit information –not reported
  7. HollysKRSouth Korea · 23 October 2026 Personal informationCustomer information 2.8Mcustomer records
  8. Yonsei UniversityKRSouth Korea · 21 October 2026 Passwords and loginsEmail addressesPhone numbers+4 10Kpeople

Put South Korea’s breaches on your site

A live map of breaches in South Korea for news sites, blogs and newsletters: free, with the link to us it carries, no cookies.

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From the data breach tracker: official notices, breach databases and the news, every fact with its source. Open data (CC BY 4.0) · How the tracker works · Found a mistake? Tell us and we correct it.