Teollimi

Data breaches, Oct 5–11, 2026: 24 reported

By country: 8 in Japan, 8 in South Korea, 2 in Switzerland and 6 more countries. The largest was Double Counter (Tellter SAS, Discord bot) (28 million records).

Latest and most important first. Open one for what leaked, who was affected and the sources

  1. 1Japan · Oct 9, 2026Bookoff (Bookoff Group Holdings)6.4 million peoplePasswords, Dates of birth, Member IDs, Addresses, Email addresses, Phone numbers
  2. 2Japan · Oct 9, 2026skyticket (Adventure Inc.)14.6 million recordsPayment card details, Bank or financial details, Passwords, Dates of birth, Member IDs, Addresses
  3. 3Denmark · Oct 5, 2026Danish Central Person Register (CPR)8.8 million peopleNational ID numbers or documents, Addresses, Names
  4. 4Japan · Oct 8, 2026Lawson (Lawson ID)2.2 million accountsPayment card details, Dates of birth, Addresses, Phone numbers, Gender, Names
  5. 5Switzerland · Oct 8, 2026Publica (Swiss federal pension fund) via PK SoftechSize not disclosedNational ID numbers or documents, Bank or financial details, Addresses, Names
  6. 6United States · Oct 5, 2026Southern Company (Georgia Power, Alabama Power, Mississippi Power)400,000 peopleNational ID numbers or documents, Addresses, Email addresses, Phone numbers, Names
  7. 7South Korea · Oct 5, 2026(in Korean)Seoul Cyber UniversitySize not disclosedNational ID numbers or documents, Bank or financial details, Passwords, Addresses, Email addresses, Phone numbers
  8. 8Japan · Oct 8, 2026Daiichi Kosho (Big Echo)8.7 million recordsDates of birth, Email addresses, Phone numbers, Gender, Names
  9. 9Japan · Oct 5, 2026Scala Communications (i-ask FAQ system: Daiwa Securities, Citizen Watch and others)713,126 recordsBank or financial details, Email addresses, Names
  10. 10Switzerland · Oct 9, 2026Ricardo (SMG Swiss Marketplace Group)890,000 peopleAddresses, Phone numbers, Names
  11. 11Japan · Oct 5, 2026Yakiniku King (Monogatari Corporation)10.8 million recordsMember IDs, Email addresses, Phone numbers, Names
  12. 12South Korea · Oct 8, 2026(in Korean)Architectural Institute of KoreaSize not disclosedBank or financial details, Passwords, Addresses, Email addresses, Phone numbers, Names
  13. 13South Korea · Oct 8, 2026(in Korean)Korean Institute of Interior DesignSize not disclosedBank or financial details, Passwords, Addresses, Email addresses, Phone numbers, Names
  14. 14South Korea · Oct 8, 2026(in Korean)Korean Institute of Power ElectronicsSize not disclosedBank or financial details, Passwords, Addresses, Email addresses, Phone numbers, Names
  15. 15South Korea · Oct 8, 2026(in Korean)Korean Magnetics SocietySize not disclosedBank or financial details, Passwords, Addresses, Email addresses, Phone numbers, Names
  16. 16South Korea · Oct 8, 2026(in Korean)KSNVESize not disclosedBank or financial details, Passwords, Addresses, Email addresses, Phone numbers, Names
  17. 17South Korea · Oct 8, 2026(in Korean)Urban Design Institute of KoreaSize not disclosedBank or financial details, Passwords, Addresses, Email addresses, Phone numbers, Names
  18. 18Japan · Oct 6, 2026MrMax1.7 million peopleMember IDs, Email addresses, Phone numbers, Names
  19. 19Several countries · Oct 5, 2026Double Counter (Tellter SAS, Discord bot)28 million recordsEmail addresses, Names
  20. 20Japan · Oct 9, 2026Baitoru (Dip)3.9 million recordsEmail addresses
  21. 21United Kingdom · Oct 6, 2026ASOSSize not disclosedAddresses, Email addresses, Phone numbers, Names
  22. 22Belgium · Oct 10, 2026TUI BelgiumSize not disclosedPhone numbers, Names
  23. 23Taiwan · Oct 6, 2026104 Job Bank (104 Corporation)120,000 records
  24. 24South Korea · Oct 11, 2026(in Korean)Seoul National University1,130 recordsEmail addresses, Names

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