Privacy Unpacked

Confirmed breach

University of Copenhagen data breach

DKDenmark

University of Copenhagen (Denmark) notified the University of Copenhagen of a data breach on 22 October 2026. It affected 545,000 people. Exposed: CPR (national ID) numbers, Government ID numbers, Email addresses, Phone numbers, Names and PIN codes and more.

Status
Confirmed breach
People affected
545,000 people
Reported
22 October 2026

What was exposed

  • CPR (national ID) numbers
  • Government ID numbers
  • Email addresses
  • Phone numbers
  • Names
  • PIN codes
  • Access card codes
  • Information
  • Access codes

How it happened

How
Hacking Hackerne har skaffet sig adgang til oplysninger source

Sources

Read our story about this breach →

If University of Copenhagen had your data

  1. Look for University of Copenhagen’s own notice or letter: it should say what of yours was involved. Keep it.
  2. Call your bank on the number printed on your card (never one from a message), check recent payments and ask for a new card.
  3. An ID number cannot be changed, so lock it: a credit freeze or fraud alert in the US, a credit warning (kreditadvarsel) on borger.dk in Denmark, Cifas protective registration in the UK.
  4. Expect scams that use your details: calls, texts or emails pretending to be University of Copenhagen, your bank or the police. Never give codes or passwords, never approve a sign-in you did not start, never move money.

One email to confirm first. We use your address only for this alert, and one click deletes it.

More breaches in Denmark

  1. 3reportedDKDenmark · 26 October 2026 NamesAddresses 400Kcustomers
  2. 3 DanmarkDKDenmark · 23 October 2026 NamesAddresses 400Kcustomers
  3. NovoreportedDKDenmark · 21 October 2026 NamesProfessional rankingsCommercial value assessments+7 46Khealthcare professionals
  4. MagasinDKDenmark · 21 October 2026 NamesAddressesPurchase history –not reported
  5. CPR (Danish national population register)reportedDKDenmark · 15 October 2026 CPR (national ID) numbersDates of birthNames+1 8.8Mcitizens

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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.