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
Sources · 2
News and write-ups
- 2026-10-26University of Copenhagen data breach exposes data of 525,000 peopleBleepingComputer · bleepingcomputer.com/news/security/university-of-copenhagen-data-breach-exposes-
- 2026-10-27Cyberattack on University of Copenhagen exposes data of 525,000 peopleHelp 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
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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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