Intelligence · Disclosure tracker
Every public disclosure, dated and sourced.
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.
5,405
Disclosures in the tracker, all years
2,119
Of those, indexed in 2026
40
Added in November
41
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 6 Nov 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
Worldwide · How they got in
Incidents worldwide, by country.
77 incidents from 10 countries in the last 90 days, each from a public source and reviewed before it is shown. Where the source says how the attackers got in, the row says so.
- United States4 Nov 2026New Century Ophthamology P.C.The source does not say how they got in.Vermont Attorney General
- United States4 Nov 2026Alation Inc.The source does not say how they got in.Vermont Attorney General
- United States3 Nov 2026Liberation Programs, Inc.The source does not say how they got in.Vermont Attorney General
- United States3 Nov 2026Hippo Analytics Inc.The source does not say how they got in.California Attorney General
- United States3 Nov 2026Peninsula Corridor Joint Powers Board (Caltrain)The source does not say how they got in.California Attorney General
- United States3 Nov 2026Center Theatre Group of Los AngelesThe source does not say how they got in.California Attorney General
- United States3 Nov 2026Upland Unified School DistrictThe source does not say how they got in.California Attorney General
- United States3 Nov 2026Mavis Tire Supply LLCThe source does not say how they got in.Vermont Attorney General
- United States3 Nov 2026Mindbloom Provider Group, PAThe source does not say how they got in.Vermont Attorney General
- United States3 Nov 2026ISCO InternationalThe source does not say how they got in.Vermont Attorney General
- United States3 Nov 2026Ritz-Clark & Ben-Asher LLPThe source does not say how they got in.Vermont Attorney General
- United States2 Nov 2026Magnolia Management Company, LLCThe source does not say how they got in.Vermont Attorney General
Critical21 Feb 2024
Cencora / AmerisourceBergen (tech)
Technology · Records not stated
Pharmaceutical distributor breach affected multiple pharma companies
21 Feb 2024
Critical21 Feb 2024
UnitedHealth Group
Technology · Records not stated
$22B revenue impact from Change Healthcare ransomware
21 Feb 2024
Critical21 Feb 2024
Change Healthcare (tech)
Technology · 100,000,000 records
ALPHV ransomware caused nationwide healthcare billing disruption for months
21 Feb 2024
Critical21 Feb 2024
Cencora / AmerisourceBergen
Healthcare · 1,400,000 records
1.4M patient pharmaceutical records exposed in data exfiltration
21 Feb 2024
Critical21 Feb 2024
Change Healthcare / UnitedHealth
Healthcare · 190,000,000 records
190M patient records stolen in ALPHV ransomware attack
21 Feb 2024
Medium20 Feb 2024
43K student records exposed in data breach
Education · Records not stated
43K student records exposed in data breach
20 Feb 2024
Medium20 Feb 2024
43K student records exposed in data breach
Education · Records not stated
43K student records exposed in data breach
20 Feb 2024
Medium20 Feb 2024
43K student records exposed in data breach
Education · Records not stated
43K student records exposed in data breach
20 Feb 2024
Medium20 Feb 2024
43K student records exposed in data breach
Education · Records not stated
43K student records exposed in data breach
20 Feb 2024
Medium20 Feb 2024
43K student records exposed in data breach
Education · Records not stated
43K student records exposed in data breach
20 Feb 2024
Medium20 Feb 2024
43K student records exposed in data breach
Education · Records not stated
43K student records exposed in data breach
20 Feb 2024
Medium20 Feb 2024
43K student records exposed in data breach
Education · Records not stated
43K student records exposed in data breach
20 Feb 2024
Medium20 Feb 2024
43K student records exposed in data breach
Education · Records not stated
43K student records exposed in data breach
20 Feb 2024
Medium20 Feb 2024
43K student records exposed in data breach
Education · Records not stated
43K student records exposed in data breach
20 Feb 2024
Medium20 Feb 2024
43K student records exposed in data breach
Education · Records not stated
43K student records exposed in data breach
20 Feb 2024
Medium20 Feb 2024
43K student records exposed in data breach
Education · Records not stated
43K student records exposed in data breach
20 Feb 2024
Medium20 Feb 2024
43K student records exposed in data breach
Education · Records not stated
43K student records exposed in data breach
20 Feb 2024
Medium20 Feb 2024
43K student records exposed in data breach
Education · Records not stated
43K student records exposed in data breach
20 Feb 2024
Medium20 Feb 2024
43K student records exposed in data breach
Education · Records not stated
43K student records exposed in data breach
20 Feb 2024
Medium20 Feb 2024
43K student records exposed in data breach
Education · Records not stated
43K student records exposed in data breach
20 Feb 2024
Medium20 Feb 2024
43K student records exposed in data breach
Education · Records not stated
43K student records exposed in data breach
20 Feb 2024
Medium20 Feb 2024
43K student records exposed in data breach
Education · Records not stated
43K student records exposed in data breach
20 Feb 2024
Medium20 Feb 2024
43K student records exposed in data breach
Education · Records not stated
43K student records exposed in data breach
20 Feb 2024
Medium20 Feb 2024
43K student records exposed in data breach
Education · Records not stated
43K student records exposed in data breach
20 Feb 2024
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