Privacy Unpacked- Status
- Confirmed breach
- People affected
- 400,000 customers
- Reported
- 23 October 2026
What was exposed
- Names
- Addresses
Confirmed breach
3 Danmark data breach
DKDenmark · 3.dk
3 Danmark (Denmark) notified the 3 Danmark press release of a data breach on 23 October 2026. It affected 400,000 customers. Exposed: Names and Addresses.
If 3 Danmark had your data
- Look for 3 Danmark’s own notice or letter: it should say what of yours was involved. Keep it.
- Expect scams that use your details: calls, texts or emails pretending to be 3 Danmark, your bank or the police. Never give codes or passwords, never approve a sign-in you did not start, never move money.
More breaches in Denmark
- 3reported NamesAddresses 400Kcustomers
- University of Copenhagen CPR (national ID) numbersGovernment ID numbersEmail addresses+6 545Kpeople
- Novoreported NamesProfessional rankingsCommercial value assessments+7 46Khealthcare professionals
- Magasin NamesAddressesPurchase history –not reported
- CPR (Danish national population register)reported CPR (national ID) numbersDates of birthNames+1 8.8Mcitizens
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.