Copenhagen
Oct 2026 · Graded Attested · Public Sector and Education · Beyond the filings
Incident summary
CopenhagenOct 2026
Not yet quantified
AAttestedHackers reached a University of Copenhagen test environment holding the names, Danish CPR numbers, phone numbers, and email addresses of 525,000 people, along with PIN access codes for 20,000 staff and students. How they got in has not been said. Copying real identities into a system built for breaking things carried the whole failure domain into the sandbox. New door codes went out within days. Nobody is reissuing 525,000 CPR numbers.
Public Sector and Education
Over 525,000 hit in massive University of Copenhagen data breach
Initial attack type not disclosed · Impact data theft inferred
About this record
This incident is beyond the filings: attributed to a company statement, a regulator or court record, or a news report, and graded Attested or Inferred. Every figure links to the source it was read from; if we have read one wrong, tell us at info@hackerinahoodie.com. This index never sums figures across incidents. See the methodology.