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.
5,306
Disclosures in the tracker, all years
2,020
Of those, indexed in 2026
69
Added in October
19
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 20 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
3,996 results · Disclosures in 2026. Clear filters
High1 Aug 2026
ATF
Government · Records not stated
Cyber incident confirmed after Qilin ransomware group claimed attack
1 Aug 2026
Critical1 Aug 2026
McKesson
Healthcare · Records not stated
Unauthorized access to healthcare systems, patient data theft by Shiny Hunters
1 Aug 2026
Critical1 Aug 2026
Amgen
Healthcare · Records not stated
Hackers accessed cloud environment, stole patient health data and proprietary company data
1 Aug 2026
High1 Aug 2026
Brinks Home
Technology · Records not stated
Breach confirmed with 4.9 million Salesforce records stolen by ShinyHunters and threatened for publication
1 Aug 2026
High1 Aug 2026
AnMed Health
Healthcare · Records not stated
Cyberattack on nonprofit health system forced facility closures and prolonged recovery operations
1 Aug 2026
High1 Aug 2026
ATF
Government · Records not stated
Qilin ransomware group targeted agency in confirmed cyber incident
1 Aug 2026
Critical1 Aug 2026
McKesson
Healthcare · Records not stated
Unauthorized access to cloud environment; ShinyHunters claimed patient data theft
1 Aug 2026
Critical1 Aug 2026
Amgen
Healthcare · Records not stated
Hackers accessed cloud environment stealing patient health data and IP
1 Aug 2026
High1 Aug 2026
Carhartt
Retail · Records not stated
ShinyHunters stole and published customer data after $3.3M ransom demand
1 Aug 2026
Critical1 Aug 2026
Aesto Health
Healthcare · 9,500,000 records
Data breach exposed sensitive health information of 9.5 million patients
1 Aug 2026
High1 Aug 2026
GP Network
Healthcare · Records not stated
Healthcare sector breach exposed patient records which reached the dark web.
1 Aug 2026
High1 Aug 2026
AnMed
Healthcare · Records not stated
Nonprofit health system cyberattack caused prolonged facility closures and limited operations
1 Aug 2026
High1 Aug 2026
Apollo Global Management
Finance · Records not stated
Asset manager suffered data breach with personal information stolen by hackers targeting financial firms
1 Aug 2026
Critical1 Aug 2026
McKesson
Healthcare · 284,000,000 records
284 million records including PII and PHI stolen by ShinyHunters
1 Aug 2026
High1 Aug 2026
AnMed Health System
Healthcare · Records not stated
Cyberattack affected healthcare operations, facilities closed for extended recovery
1 Aug 2026
Critical1 Aug 2026
Veradigm
Healthcare · 3,500,000 records
3.5M patient records stolen by Gentlemen ransomware gang
1 Aug 2026
Critical1 Aug 2026
Aesto Health
Healthcare · 9,500,000 records
9.5M patient health records exposed
1 Aug 2026
Critical1 Aug 2026
IDScan.net
Sector not stated · Records not stated
1.1 million Canadian records leaked including 470,000+ Ontario driver's licenses
1 Aug 2026
Critical1 Aug 2026
Manchester Airports Group
Sector not stated · 8,700,000 records
Cyberattack exposed customer data of 8.7 million individuals
1 Aug 2026
High1 Aug 2026
US Bank
Finance · Records not stated
Investigating LockBit ransomware breach claim with threat to publish stolen data
1 Aug 2026
Critical1 Aug 2026
Aesto Health
Healthcare · 9,500,000 records
Data breach affects 9.5 million patients at Birmingham, Alabama-based healthcare technology company
1 Aug 2026
High1 Aug 2026
Veradigm
Healthcare · Records not stated
Customer data stolen after hackers infiltrated vendor systems at electronic health record company
1 Aug 2026
Critical1 Aug 2026
National Public Data
Sector not stated · 272,000,000 records
Breach exposed 272+ million SSNs and records
1 Aug 2026
High1 Aug 2026
Berlin Government
Government · Records not stated
Rhysida ransomware group targeted government with claimed data theft
1 Aug 2026
Were you affected?