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.
5,475
Disclosures in the tracker, all years
2,009
Of those, indexed in 2026
58
Added in October
14
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 19 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
3,981 results · Disclosures in 2026. Clear filters
High1 Jun 2026
Law firm (New Jersey)
Legal · 13,000 records
Data from 13,000 patients exposed via cyberattack on law firm representing hospitals
1 Jun 2026
Critical1 Jun 2026
Elasticsearch Database (Infostealer logs)
Technology · Records not stated
Publicly exposed database leaked 24 billion stolen credentials in June 2026, largest infostealer compilation
1 Jun 2026
Critical1 Jun 2026
Organisation not named
Healthcare · 1,260,000 records
The disclosure as indexed does not name the organisation.
1.26M patient records exposed in PEAR ransomware attack; medical billing data compromised
1 Jun 2026
Critical1 Jun 2026
MCBS Medical Billing
Healthcare · 1,260,000 records
1.26 million patients exposed in PEAR ransomware attack on medical billing company
1 Jun 2026
Critical1 Jun 2026
Instructure
Education · Records not stated
Canvas platform supply chain breach generating over 50% of all breach notices in 2026
1 Jun 2026
High1 Jun 2026
Law Firm (New Jersey)
Legal · 13,000 records
Cyberattack on law firm exposed hospital records of nearly 13,000 patients
1 Jun 2026
High1 Jun 2026
Thousands of NHS patient records
Healthcare · 900,000 records
Thousands of NHS patient records confirmed stolen in major ransomware attack disrupting healthcare services
1 Jun 2026
Critical1 Jun 2026
Elasticsearch (public database)
Sector not stated · Records not stated
24 billion stolen credentials leaked in publicly exposed database, largest infostealer log compilation
1 Jun 2026
High1 Jun 2026
SISVISA
Healthcare · Records not stated
102,215 Brazilian health surveillance records leaked including IDs and tax data
1 Jun 2026
High1 Jun 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Personal and medical information including SSNs exposed in data breach
1 Jun 2026
High1 Jun 2026
T-Mobile
Technology · Records not stated
Data breach exposed customer information; company violated WA notification law with text message notices
1 Jun 2026
Critical1 Jun 2026
Exact Sciences / Abbott
Healthcare · Records not stated
Patient data exposed through at-home diagnostic tests; sensitive and confidential personal information compromised
1 Jun 2026
High1 Jun 2026
Law firm representing hospitals
Legal · 13,000 records
Cyberattack exposed hospital records of nearly 13,000 patients in New Jersey
1 Jun 2026
High1 Jun 2026
Tribeca Festival
Sector not stated · Records not stated
Hundreds of thousands of records and celebrity contact information exposed in data leak
1 Jun 2026
High1 Jun 2026
Allstate
Finance · Records not stated
Employee-related records exposed in data breach
1 Jun 2026
Critical1 Jun 2026
Synnovis/NHS Essex
Healthcare · 900,000 records
Thousands of NHS patient records stolen in ransomware attack affecting Essex NHS trust
1 Jun 2026
High1 Jun 2026
Suno
Technology · Records not stated
Customer records and AI model training data exposed; customers not notified
1 Jun 2026
High1 Jun 2026
Canvas (Learning Management Platform)
Education · Records not stated
Learning platform attacked by ShinyHunters hacker group, security breach disclosed
1 Jun 2026
High1 Jun 2026
Coca-Cola Fairlife
Retail · Records not stated
Ransomware attack shut down $4 billion dairy brand operations
1 Jun 2026
High1 Jun 2026
FirstClass (travel agency)
Sector not stated · Records not stated
Customer records breached by threat actor operating on underground hacking forums
1 Jun 2026
High1 Jun 2026
Organisation not named
Healthcare · 900,000 records
The disclosure as indexed does not name the organisation.
Ransomware attack stole thousands of NHS patient records from Mid South Essex Foundation Trust
1 Jun 2026
High1 Jun 2026
FirstClass (Australian Travel Agency)
Sector not stated · Records not stated
Customer records allegedly breached by threat actor operating on underground hacking forums
1 Jun 2026
Critical1 Jun 2026
Elasticsearch Database (Infostealer Logs)
Technology · Records not stated
Publicly exposed database leaked 24 billion stolen credentials, one of largest infostealer compilations
1 Jun 2026
High1 Jun 2026
TrueConf
Technology · Records not stated
Server breach exploited by Head Mare group to trojanize client installers with backdoors
1 Jun 2026
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