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.
5,278
Disclosures in the tracker, all years
1,992
Of those, indexed in 2026
41
Added in October
9
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 16 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
3,949 results · Disclosures in 2026. Clear filters
Critical1 Aug 2026
Manchester Airports Group (MAG)
Sector not stated · 8,700,000 records
Cyberattack exposed 8.7 million customer records
1 Aug 2026
Critical1 Aug 2026
Aesto Health
Healthcare · 9,500,000 records
Data breach affects 9.5 million patients; Birmingham, Alabama healthcare technology company
1 Aug 2026
Critical1 Aug 2026
Unlimited Technology Systems
Healthcare · 3,800,000 records
Data breach exposed approximately 3.8 million patient records; Ohio-based revenue cycle vendor
1 Aug 2026
Critical1 Aug 2026
Snowflake
Technology · 165,000,000 records
Credential-based cloud intrusion exposed over 100 million records across 165+ organizations
1 Aug 2026
High1 Aug 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
Qilin ransomware group breached computer system; confirmed August 26, 2026
1 Aug 2026
High1 Aug 2026
Brinks Home
Sector not stated · Records not stated
Breach confirmed with 4.9 million stolen Salesforce records threatened for publication by ShinyHunters
1 Aug 2026
High1 Aug 2026
AnMed
Healthcare · Records not stated
Cyberattack on nonprofit health system forced facility closures and limited operations
1 Aug 2026
High1 Aug 2026
Ransomware breach by Qilin group, computer system compromised
Government · Records not stated
Ransomware breach by Qilin group, computer system compromised
1 Aug 2026
High1 Aug 2026
Brinks Home
Sector not stated · Records not stated
Data breach confirmed with 4.9 million stolen Salesforce records threatened for publication
1 Aug 2026
High1 Aug 2026
AnMed Health System
Healthcare · Records not stated
Cyberattack forced 10 healthcare facilities to remain closed, prolonged recovery times reported
1 Aug 2026
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
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