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.
5,325
Disclosures in the tracker, all years
2,040
Of those, indexed in 2026
97
Added in October
24
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 23 Oct 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.
71 incidents from 11 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 States23 Oct 2026Tarter Krinsky & DroginThe source does not say how they got in.HIPAA Journal
- United States23 Oct 2026Quest DiagnosticsThe source does not say how they got in.SecurityWeek
- United States22 Oct 2026Summit School DistrictThe source does not say how they got in.Vermont Attorney General
- United States22 Oct 2026Nordace Limited d/b/a NordaceThe source does not say how they got in.Vermont Attorney General
- United States22 Oct 2026Deposition Solutions, LLC (d/b/a Lexitas)The source does not say how they got in.California Attorney General
- United States22 Oct 2026Opportune LLPThe source does not say how they got in.California Attorney General
- United States22 Oct 2026Transformative Healthcare, LLCThe source does not say how they got in.HIPAA Journal
- United States22 Oct 2026American Renal Management LLCThe source does not say how they got in.HIPAA Journal
- United States22 Oct 2026Ridgeway Pharmacy LtdHow they got in: a supplier or vendor that was compromised first.HIPAA Journal
- United States22 Oct 2026City of Columbia, South CarolinaThe source does not say how they got in.The Record
- United States22 Oct 2026RailwayThe source does not say how they got in.TechCrunch
- United States21 Oct 2026Critical infrastructure organizations worldwideHow they got in: stolen or reused passwords.BleepingComputer
High1 Jul 2026
Department of Homeland Security
Government · Records not stated
Network intrusion confirmed on HSIN used for World Cup operations
1 Jul 2026
Critical1 Jul 2026
Organisation not named
Healthcare · 1,260,000 records
The disclosure as indexed does not name the organisation.
1.26 million patient records exposed in PEAR ransomware attack on billing company
1 Jul 2026
Critical1 Jul 2026
Puerto Rico Government Agency
Government · Records not stated
Cybersecurity loophole in government mapping service exposed 1 million social security numbers
1 Jul 2026
High1 Jul 2026
KT Corporation
Technology · Records not stated
Personal data breach via illegal base stations caused unauthorized micropayments
1 Jul 2026
High1 Jul 2026
Coca-Cola (Fairlife subsidiary)
Sector not stated · Records not stated
Ransomware attack resulted in theft of company data from dairy subsidiary
1 Jul 2026
Critical1 Jul 2026
Organisation not named
Healthcare · 1,260,000 records
The disclosure as indexed does not name the organisation.
1.26 million patients exposed in PEAR ransomware attack on healthcare billing and practice-management company
1 Jul 2026
Critical1 Jul 2026
MCBS Medical Billing
Healthcare · 1,260,000 records
1.26 million patients exposed in PEAR ransomware attack on billing and practice-management systems
1 Jul 2026
High1 Jul 2026
Hospital software vendor
Healthcare · Records not stated
Customer data breach from major healthcare software vendor via supply-chain attack
1 Jul 2026
Critical1 Jul 2026
Fortinet
Technology · Records not stated
FortiBleed campaign; 73,000+ devices affected; verified administrator credentials and VPN data exposed
1 Jul 2026
High1 Jul 2026
Evanston Township High School
Education · Records not stated
Cyberattack disrupted phone systems; students and parents advised to use email
1 Jul 2026
Critical1 Jul 2026
Organisation not named
Healthcare · 1,260,000 records
The disclosure as indexed does not name the organisation.
1.26 million patients exposed in PEAR ransomware attack on billing system
1 Jul 2026
High1 Jul 2026
Police National Legal Database
Government · Records not stated
135,000 contact records stolen and leaked on dark web by ExfilSquad hacker group
1 Jul 2026
Critical1 Jul 2026
Organisation not named
Healthcare · 1,260,000 records
The disclosure as indexed does not name the organisation.
1.26 million patients exposed in PEAR ransomware attack on medical billing systems
1 Jul 2026
High1 Jul 2026
KT (South Korea)
Technology · Records not stated
Personal data breach via illegal base stations causing unauthorized micropayment damages
1 Jul 2026
High1 Jul 2026
Valve
Technology · Records not stated
Steam hardware customer data stolen, affecting European customers
1 Jul 2026
Critical1 Jul 2026
Estée Lauder
Retail · Records not stated
Oracle E-Business Suite breach exposed SSNs, passports, health records via Clop campaign
1 Jul 2026
High1 Jul 2026
Healthcare advocacy vendor cybersecurity incident
Healthcare · Records not stated
Healthcare advocacy vendor cybersecurity incident exposed employee Social Security numbers
1 Jul 2026
High1 Jul 2026
Levi Strauss
Retail · Records not stated
Corporate data stolen via social engineering attack on 3 employee computers
1 Jul 2026
High1 Jul 2026
Cure Dental
Healthcare · Records not stated
Data breach exposed personally identifiable information of current and former patients
1 Jul 2026
High1 Jul 2026
Allstate
Finance · Records not stated
Data breach exposed employee-related records, part of pattern targeting insurers
1 Jul 2026
High1 Jul 2026
KT
Technology · Records not stated
South Korean telecom breach via illegal base stations, personal data and unauthorized micropayment damages
1 Jul 2026
High1 Jul 2026
Huntsville Hospital Health System
Healthcare · Records not stated
Third-party data breach compromised patient data
1 Jul 2026
Critical1 Jul 2026
Instructure
Education · Records not stated
Canvas platform supply chain breach generating 58% of all breach notices in 2026
1 Jul 2026
Critical1 Jul 2026
Coca-Cola Dairy Operations
Retail · Records not stated
Ransomware attack shut down dairy brand operations; data compromised
1 Jul 2026
Were you affected?