University of Copenhagen data breach exposes data of 525,000 people
The University of Copenhagen in Denmark confirmed that hackers accessed one of its test environments containing personal data belonging to 525,000 people.
The University of Copenhagen in Denmark confirmed that hackers accessed one of its test environments containing personal data belonging to 525,000 people.
The educational organization detected the breach last Tuesday and disclosed it on Friday, and in an update yesterday, the university added another 20,000 staff and students whose PIN codes were exposed.
Founded in 1479, the University of Copenhagen is Denmark’s oldest university and one of its leading research institutions.
The University of Copenhagen is still investigating to determine the extent of the incident, but warns that the following information may have been exposed: The exposed information increases the risk of phishing and social engineering attacks.
Regarding the PIN access exposure, the University of Copenhagen has restricted physical access to certain critical locations on its campus out of abundance of caution and is gradually reopening them as it distributes new access codes.
Currently, there is no indication that hackers accessed systems supporting daily operations or disrupted university activities; the Blue Report 2026 measures defenses technique by technique across 338 million simulations run in customer production environments.
The university says it contained the attack and blocked the attacker’s access.
Students and staff whose data may have been exposed in this incident should be cautious of unsolicited communications and independently verify requests.
What happened
The University of Copenhagen in Denmark confirmed that hackers accessed one of its test environments containing personal data belonging to 525,000 people.
The educational organization detected the breach last Tuesday and disclosed it on Friday, and in an update yesterday, the university added another 20,000 staff and students whose PIN codes were exposed.
What changed
Founded in 1479, the University of Copenhagen is Denmark’s oldest university and one of its leading research institutions.
The University of Copenhagen is still investigating to determine the extent of the incident, but warns that the following information may have been exposed: The exposed information increases the risk of phishing and social engineering attacks.
Regarding the PIN access exposure, the University of Copenhagen has restricted physical access to certain critical locations on its campus out of abundance of caution and is gradually reopening them as it distributes new access codes.
Who is affected
Currently, there is no indication that hackers accessed systems supporting daily operations or disrupted university activities; the Blue Report 2026 measures defenses technique by technique across 338 million simulations run in customer production environments.
Why it matters
The university says it contained the attack and blocked the attacker’s access.
Students and staff whose data may have been exposed in this incident should be cautious of unsolicited communications and independently verify requests.
Attribution
BleepingComputer: The University of Copenhagen in Denmark confirmed that hackers accessed one of its test environments containing personal data belonging to 525,000 people.
What to watch next
Watch for revised vendor guidance, fixed versions and mitigation updates.