Weekly briefing No. 42 published 30 Oct 2026
Disclosure tracker › Education disclosures
Intelligence · Disclosure tracker

Education disclosures

Public breach disclosures from regulators, court filings, company notices and news reporting, each recorded with its date and a link to the original. Updated daily.

5,366
Disclosures in the tracker, all years
2,082
Of those, indexed in 2026
146
Added in October
23
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 30 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.

3,907 results · Education disclosures. Clear filters

Medium27 Oct 2026
The University of Copenhagen in Denmark
Education · 525,000 records
Bill Toulas reports: 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…
27 Oct 2026
Medium26 Oct 2026
Organisation not named
Education · 525,000 records
The disclosure as indexed does not name the organisation.
The University of Copenhagen in Denmark confirmed that hackers accessed one of its test environments containing personal data belonging to 525,000 people.
26 Oct 2026
High18 Oct 2026
Organisation not named
Education · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack on UIC College of Medicine resulted in theft of some information.
18 Oct 2026
Medium3 Oct 2026
Danish university DTU breach
Education · 200,000 records
The Technical University of Denmark (DTU) says information belonging to up to 200,000 users may have been exposed after hackers accessed its identity and access management system and downloaded a large amount of data. [.
3 Oct 2026
Medium2 Oct 2026
Frontline Education breach
Education · Records not stated
Frontline Education is notifying school districts of a data breach after attackers exploited a vulnerability in third-party software to gain unauthorized access to its systems and steal employee information, including…
2 Oct 2026
Critical1 Oct 2026
Educational Testing Service (ETS)
Education · Records not stated
Breach of student records; proposed class action alleges failure to safeguard sensitive records of 7 million current and former California students.
1 Oct 2026
High1 Oct 2026
Organisation not named
Education · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack on UIC College of Medicine resulted in theft of some information.
1 Oct 2026
High1 Oct 2026
Unnamed Houston-area school district
Education · 38,000 records
Data breach exposed personal information of roughly 38,000 people.
1 Oct 2026
High1 Oct 2026
Organisation not named
Education · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack on the UIC College of Medicine resulted in theft of some information.
1 Oct 2026
Critical1 Oct 2026
Organisation not named
Education · Records not stated
The disclosure as indexed does not name the organisation.
Sensitive data of millions of California students stolen in a breach at contractor Educational Testing Service.
1 Oct 2026
High1 Oct 2026
Houston-area school district (unnamed)
Education · 38,000 records
Data breach exposed personal information of roughly 38,000 people, per local reporting.
1 Oct 2026
High1 Oct 2026
Organisation not named
Education · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack on the medical school resulted in theft of some information; the university confirmed the incident.
1 Oct 2026
High1 Oct 2026
Organisation not named
Education · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack resulted in theft of some information from the college of medicine.
1 Oct 2026
Critical1 Oct 2026
Contractor ETS
Education · Records not stated
Contractor ETS suffered a breach exposing sensitive data of millions of California students; the California Department of Education notified students.
1 Oct 2026
Critical1 Oct 2026
Educational Testing Service (ETS)
Education · Records not stated
Over 5.7 million California student records breached, including records dating back to 2006
1 Oct 2026
High1 Oct 2026
University of Illinois Chicago
Education · Records not stated
Ransomware attack on College of Medicine resulted in theft of personal information
1 Oct 2026
Medium1 Oct 2026
University of Illinois Chicago
Education · Records not stated
Ransomware attack on College of Medicine resulted in theft of some information
1 Oct 2026
High1 Oct 2026
Canadian Mennonite University (CMU)
Education · Records not stated
Sensitive personal information including SINs and tax records stolen from thousands of current and former students and employees
1 Oct 2026
High1 Oct 2026
University of Illinois Chicago
Education · Records not stated
Ransomware attack on College of Medicine resulted in theft of medical information
1 Oct 2026
High25 Sep 2026
Columbia University
Education · 860,000 records
860,000 records exposed in data breach
25 Sep 2026
High25 Sep 2026
Kaplan
Education · Records not stated
Education company data breach impacting customers
25 Sep 2026
High23 Sep 2026
Pierce County Library
Education · 340,000 records
Data breach impacting 340,000 individuals
23 Sep 2026
High23 Sep 2026
Kaplan
Education · Records not stated
Education company data breach impacting multiple individuals
23 Sep 2026
High23 Sep 2026
Columbia University
Education · Records not stated
Hacker stole SSNs and other data from university
23 Sep 2026
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