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.
5,337
Disclosures in the tracker, all years
2,050
Of those, indexed in 2026
104
Added in October
24
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 24 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
Critical14 Aug 2026
Abbott Laboratories
Healthcare · 30,000,000 records
30M+ customer rows stolen by ShinyHunters
14 Aug 2026
Critical14 Aug 2026
14 Aug 2026
Medium14 Aug 2026
Portable Intelligence Canada
Technology · Records not stated
BlackNevas breach confirmed Aug 14
14 Aug 2026
High14 Aug 2026
American Addiction Centers
Healthcare · Records not stated
SSNs and health data stolen from Salesforce
14 Aug 2026
Critical14 Aug 2026
Snowflake customers (165 breaches)
Technology · 165,000,000 records
Data storage platform hacked; 165 breaches affecting over 165 million records total across multiple organizations
14 Aug 2026
Critical14 Aug 2026
Organisation not named
Technology · 24,000,000 records
The disclosure as indexed does not name the organisation.
24M customer breach due to lack of basic security controls; three major GDPR violations
14 Aug 2026
High14 Aug 2026
Comcast/Xfinity
Technology · 35,000,000 records
Cyberattack exposed personal information of Xfinity customers; $117.5M settlement reached
14 Aug 2026
High14 Aug 2026
14 Aug 2026
Critical14 Aug 2026
100K+ officer and staff contacts leaked
Government · Records not stated
100K+ officer and staff contacts leaked
14 Aug 2026
Critical14 Aug 2026
100K police officer records exfiltrated
Government · Records not stated
100K police officer records exfiltrated
14 Aug 2026
Critical14 Aug 2026
Ernst Young
Finance · Records not stated
Client documents exfiltrated via third-party platform
14 Aug 2026
Critical14 Aug 2026
American Addiction Centers
Healthcare · Records not stated
SSNs and health data from Salesforce breach
14 Aug 2026
Critical14 Aug 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
One Caledonian government agency reported a breach, thanks to a third party that may have serviced other agencies as well.
14 Aug 2026
Medium14 Aug 2026
Organisation not named
Sector not stated · Records not stated
The disclosure as indexed does not name the organisation.
Researchers have verified that ExfilSquad possesses sensitive data stolen from at least 13 victims after the extortion group published leaked datasets via torrents
14 Aug 2026
Critical14 Aug 2026
Comcast
Technology · 35,000,000 records
Xfinity data breach exposed personal data; company settled class-action lawsuit for $117.5 million
14 Aug 2026
High14 Aug 2026
Unnamed Canadian Credit Firm
Finance · 28,000 records
28K customers, 55GB financial PII stolen
14 Aug 2026
High14 Aug 2026
Portable Intelligence
Technology · Records not stated
Canadian software firm breached by BlackNevas
14 Aug 2026
Critical14 Aug 2026
Brightspeed
Technology · 1,000,000 records
1M+ customer records stolen by Crimson Collective
14 Aug 2026
Critical14 Aug 2026
Canadian Inv Regulatory Org
Finance · Records not stated
750K investors' SINs and financials stolen
14 Aug 2026
High14 Aug 2026
Polish Heat-and-Power Plant
Government · Records not stated
Breached via private APN; facility supplies heat to ~50,000 residents
14 Aug 2026
High14 Aug 2026
Nissan
Sector not stated · Records not stated
Data breach involving third-party vendor with stolen data claims
14 Aug 2026
High14 Aug 2026
Fidelity Investments
Finance · Records not stated
Data breach with $2.5 million class-action settlement for eligible customers
14 Aug 2026
Critical14 Aug 2026
Change Healthcare (UnitedHealth Group)
Healthcare · 100,000,000 records
2024 ransomware attack exposed millions of patients' health and insurance data
14 Aug 2026
High14 Aug 2026
Ernst & Young
Legal · Records not stated
Data breach exposed client tax records and personal financial information; class action investigation underway
14 Aug 2026
Were you affected?