Disclosure tracker › Disclosures in 2026
Intelligence · Disclosure tracker
Disclosures in 2026
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.
5,274
Disclosures in the tracker, all years
1,988
Of those, indexed in 2026
37
Added in October
8
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 14 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
3,945 results · Disclosures in 2026. Clear filters
Critical1 May 2026
Fortinet
Technology · Records not stated
FortiBleed campaign exposed verified credentials for 73,000+ FortiGate devices
1 May 2026
High1 May 2026
Partnered Health
Healthcare · Records not stated
Cyber-attack exposed Medicare numbers, treatment details and pathology results from Australian clinics
1 May 2026
Critical1 May 2026
Synnovis
Healthcare · 900,000 records
Thousands of patient records from NHS trust in Essex stolen during major ransomware attack
1 May 2026
High1 May 2026
Organisation not named
Education · Records not stated
The disclosure as indexed does not name the organisation.
Tens of thousands of Queensland students and teachers affected in one of most significant global education technology data breaches
1 May 2026
Critical1 May 2026
Canada Life
Finance · 5,500,000 records
5.5 million records allegedly compromised including customer, employee and corporate data
1 May 2026
Critical1 May 2026
African National Congress
Sector not stated · Records not stated
2 million private member records exposed and offered for sale by hackers
1 May 2026
High1 May 2026
Idaho State University
Education · Records not stated
Ransomware attack disrupted finals week and affected thousands of schools
1 May 2026
Critical1 May 2026
Radiology Associates of Richmond
Healthcare · 266,000 records
266,000 people affected, protected health information compromised
1 May 2026
High1 May 2026
SplitVPN
Technology · 865,000 records
Personal records of approximately 865,000 users exposed in data breach
1 May 2026
High1 May 2026
Valley Kidney Specialists
Healthcare · Records not stated
Personal and health information of patients exposed in data breach
1 May 2026
High1 May 2026
Allstate
Finance · Records not stated
Employee-related records exposed in data breach affecting insurer
1 May 2026
Critical1 May 2026
Accenture
Technology · Records not stated
Data breach; 35GB of internal data stolen including source code and credentials
1 May 2026
High1 May 2026
Queensland Schools Education Technology
Education · Records not stated
Major cyber breach affecting tens of thousands of Queensland students and teachers globally
1 May 2026
High1 May 2026
GitHub
Technology · Records not stated
Data breach resulted in theft of 4,000 internal developer code repositories
1 May 2026
High1 May 2026
Instructure/Canvas
Education · Records not stated
Ransomware attack resulted in data breach; apparent payment made to threat actors
1 May 2026
High1 May 2026
Tens of thousands of student and teacher records
Education · Records not stated
Tens of thousands of student and teacher records exposed in major education technology data breach
1 May 2026
Critical1 May 2026
ANC (African National Congress)
Sector not stated · Records not stated
2 million private member records exposed and offered for sale by hacker group
1 May 2026
High1 May 2026
Organisation not named
Education · Records not stated
The disclosure as indexed does not name the organisation.
Tens of thousands of students and teachers affected in major education technology data breach
1 May 2026
High1 May 2026
Organisation not named
Education · Records not stated
The disclosure as indexed does not name the organisation.
Tens of thousands of Queensland students and teachers' data compromised in major education technology breach
1 May 2026
High1 May 2026
FirstClass Travel
Sector not stated · Records not stated
Customer records allegedly breached by threat actor on underground forums
1 May 2026
Critical1 May 2026
PEAR ransomware attack
Healthcare · 1,260,000 records
PEAR ransomware attack exposed data for 1.26 million patients at healthcare billing company
1 May 2026
High1 May 2026
Ernst & Young
Finance · Records not stated
Vendor breach exposed tax client data after 81-day notification delay
1 May 2026
High1 May 2026
UC Berkeley Canvas/bCourses
Education · 600,000 records
ShinyHunters claimed to have stolen 600K records from UC Berkeley's learning management platform
1 May 2026
High1 May 2026
Organisation not named
Education · Records not stated
The disclosure as indexed does not name the organisation.
Tens of thousands of students and teachers affected in major global education technology data breach
1 May 2026
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