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Data Breach at University of Copenhagen Affects 525,000 Individuals

Oct 26, 2026
Data Breach at University of Copenhagen Affects 525,000 Individuals

The University of Copenhagen in Denmark has confirmed that hackers accessed one of its test environments, compromising personal data belonging to around 525,000 individuals. The breach was detected last Tuesday, with the university disclosing the incident on Friday. In a subsequent update, the university revealed that an additional 20,000 staff and students had their PIN codes exposed during the attack.

The university stated, "The University of Copenhagen has confirmed a cyber attack in which hackers gained access to one of the university’s test environments." Founded in 1479, the University of Copenhagen is Denmark’s oldest university and a leading research institution, hosting approximately 36,800 students and 10,700 employees across six faculties and more than 200 research centers.

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Currently, the university is investigating the breach to assess its full impact. They have warned that the exposed information increases the risk of phishing and social engineering attacks. In response to the exposure of PIN codes, the university has restricted physical access to certain critical areas on campus as a precautionary measure, gradually reopening them as new access codes are distributed.

University's Response to Data Protection Regulations

The university has reported the incident to the Danish Data Protection Agency and noted that it falls under the purview of Europe’s General Data Protection Regulation (GDPR). They are taking appropriate steps in coordination with relevant regulators. Students and staff whose data may have been compromised are advised to be cautious of unsolicited communications and to independently verify any requests they receive.

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The university has stated that it contained the attack and blocked the hacker's access. At this time, there is no indication that the hackers accessed systems that support daily operations or disrupted university activities. The university has committed to providing further updates on the situation as its internal investigation progresses.

As the investigation continues, the University of Copenhagen is focused on understanding the full scope of the breach and implementing necessary security measures to protect its community. The incident highlights the ongoing challenges educational institutions face in safeguarding sensitive personal information against cyber threats. The university's commitment to transparency and cooperation with regulatory bodies is crucial in addressing the implications of this breach and restoring trust among its students and staff.

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University of Copenhagen Confirms Data Breach Affecting 525,000 Individuals
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