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Denmark's National Registry Breach Exposes Data of 8.8 Million Individuals

Denmark's National Registry Breach Exposes Data of 8.8 Million Individuals

First seen 5 Oct 2026, 09:27 UTC • •

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ThreatCluster AI
ThreatCluster •October 5, 2026 at 09:28 UTC
  • •8.8 million individuals' personal data compromised in a significant breach.
  • •Hackers accessed the national registry through a third-party company.
  • •Investigation launched, but no suspects identified yet.

Hackers accessed Denmark's national registry, compromising personal information of approximately 8.8 million individuals, including names, addresses, and social security numbers (CPR numbers). The breach was confirmed by the digital affairs ministry on October 5, 2026. The national registry contains data on 11 million people, including those deceased or who have emigrated. The hackers gained access by infiltrating a Danish company that had legitimate access to the registry. An investigation is underway, but the hackers have not yet been identified. Authorities have stopped the compromised company's access to the registry and reported the incident to the Danish Data Protection Authority and police. Digital Affairs Minister Christina Egelund emphasized the seriousness of the incident and urged caution regarding personal information.

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Timeline

2026-10-05
Data breach confirmed
Denmark's digital affairs ministry announced that hackers accessed personal information of 8.8 million individuals.
M.Thepeninsulaqatar
2026-10-05
Investigation initiated
Authorities began investigating the breach and reported it to the Danish Data Protection Authority and police.
Thelocal.Dk

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Common questions

What personal information was compromised?
The breach exposed names, addresses, and CPR numbers of approximately 8.8 million individuals.
How did the hackers gain access?
The hackers accessed the national registry by infiltrating a Danish company that had legitimate access to the system.
What actions are being taken in response?
An investigation is underway, and the compromised company's access to the registry has been revoked.