gcdRadar
closedclosed 10 Nov 2026Breaches & attacks4 Confirmed real-world loss

University of Copenhagen data breach exposes 525,000 records

University of Copenhagen test environment

The University of Copenhagen in Denmark confirmed that unauthorised actors accessed a test environment. The incident exposed personal data belonging to 525,000 individuals.

why this severityConfirmed PII data breach affecting over 500,000 people.

first report
26 Oct 2026
last update
27 Oct 2026

Timeline · 1

  1. 26 Oct 2026University of Copenhagen data breach exposes data of 525,000 people

Sources · 2

News and write-ups

  1. 2026-10-26
    University of Copenhagen data breach exposes data of 525,000 people
    BleepingComputer · bleepingcomputer.com/news/security/university-of-copenhagen-data-breach-exposes-
  2. 2026-10-27
    Cyberattack on University of Copenhagen exposes data of 525,000 people
    Help Net Security · helpnetsecurity.com/2026/10/27/university-of-copenhagen-cyberattack-data-breach

Titles and links belong to their publishers. The summary above is written by gcdRadar in its own words; data is CC BY-SA 4.0.

Classification

AI role
No AI role
categories
General security
severity
4 · Confirmed real-world loss
targets
Not applicable
owasp llm top 10
no entry for these categories
mitre atlas
no technique for these categories
dates
happened 26 Oct 2026 · first reported 26 Oct 2026
origin
News & research feeds
record
confidence 0.90 · created 2026-10-27 09:09Z · updated 2026-11-11 00:12Z

Lane, AI role, categories and severity come from the classifier; the OWASP and ATLAS rows are derived from the categories. How these are assigned

Copy a brief

This record as a short Markdown brief, for a ticket, a chat or a coding agent.

the brief as text
# University of Copenhagen data breach exposes 525,000 records

https://gcdradar.vercel.app/incidents/university-of-copenhagen-data-breach-exposes-525-000-records · AIR-2026-1554 · closed 2026-11-10

- Lane: Breaches & attacks
- Severity: 4 (Confirmed real-world loss): Confirmed PII data breach affecting over 500,000 people.
- Fix status: No fix needed
- First reported: 2026-10-26
- AI role: No AI role
- Products: University of Copenhagen test environment

## Summary

The University of Copenhagen in Denmark confirmed that unauthorised actors accessed a test environment. The incident exposed personal data belonging to 525,000 individuals.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Latest updates

- 2026-10-26: University of Copenhagen data breach exposes data of 525,000 people (https://bleepingcomputer.com/news/security/university-of-copenhagen-data-breach-exposes-data-of-525-000-people)

## Sources

- 2026-10-26 BleepingComputer: University of Copenhagen data breach exposes data of 525,000 people https://bleepingcomputer.com/news/security/university-of-copenhagen-data-breach-exposes-data-of-525-000-people
- 2026-10-27 Help Net Security: Cyberattack on University of Copenhagen exposes data of 525,000 people https://helpnetsecurity.com/2026/10/27/university-of-copenhagen-cyberattack-data-breach

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.

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