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University of Copenhagen Cyber Attack Exposes 525,000 Records

University of Copenhagen Cyber Attack Exposes 525,000 Records

First seen 24 Oct 2026, 15:12 UTC • •
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ThreatCluster •October 24, 2026 at 16:14 UTC
  • •Cyber attack compromised data of approximately 525,000 individuals.
  • •No impact on daily operations reported by the university.
  • •Incident reported to the Danish Data Protection Agency for compliance.

The University of Copenhagen confirmed a cyber attack that occurred on October 18, 2026, where hackers accessed a test environment. Approximately 525,000 individuals' personally identifiable information, including names, national identity numbers, and contact details, was compromised. The university stated that day-to-day operations were not affected and access has been blocked. They are currently assessing the full extent of the breach and have reported the incident to the Danish Data Protection Agency. The university is taking steps to prevent future attacks and will provide updates as more information becomes available.

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Timeline

2026-10-18
Cyber attack detected
Hackers gained access to a test environment at the University of Copenhagen, affecting personal data of 525,000 individuals.
News.Ku.Dk
2026-10-23
Incident confirmed
The University of Copenhagen confirmed the breach and reported it to the Danish Data Protection Agency.
News.Ku.Dk

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Common questions

What type of data was compromised?
The breach exposed personally identifiable information, including names, national identity numbers, and contact details of approximately 525,000 individuals.
Is there any indication of operational impact?
No, the university reported that day-to-day operations were not affected by the cyber attack.
What actions is the university taking in response?
The university is assessing the extent of the breach, blocking access, and has reported the incident to the Danish Data Protection Agency.