Privacy Unpacked

Confirmed breach

Technical University of Denmark (DTU) data breach

DKDenmark

The Copenhagen Post reported a data breach at Technical University of Denmark (DTU) (Denmark) on 2 October 2026, and it has been confirmed. It affected 200,000 current and former users. Exposed: CPR (national ID) numbers, Government ID numbers, Phone numbers, Names and Private addresses (active users).

If Technical University of Denmark (DTU) had your data

  1. Look for Technical University of Denmark (DTU)’s own notice or letter: it should say what of yours was involved. Keep it.
  2. 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.
  3. Expect scams that use your details: calls, texts or emails pretending to be Technical University of Denmark (DTU), 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.

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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.