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.
5,274
Disclosures in the tracker, all years
1,988
Of those, indexed in 2026
37
Added in October
8
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 14 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
3,945 results · Disclosures in 2026. Clear filters
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
Critical14 Aug 2026
Abbott Exact Sciences
Healthcare · 10,900,000 records
10.9M emails and health records dumped publicly
14 Aug 2026
Critical14 Aug 2026
Comcast
Technology · 35,000,000 records
Data breach exposed personal information from Xfinity customers; $117.5M settlement
14 Aug 2026
Medium14 Aug 2026
CF Supply
Sector not stated · Records not stated
Akira ransomware hit Texas construction supplier
14 Aug 2026
Critical14 Aug 2026
DHS Homeland Security Network
Government · Records not stated
Unclassified HSIN platform confirmed breached
14 Aug 2026
Critical14 Aug 2026
Abbott Cancer Diagnostics
Healthcare · 10,900,000 records
10.9M emails and health records dumped
14 Aug 2026
High14 Aug 2026
FRANCE TRAVAIL
Government · Records not stated
Hackers accessed information system in Q1 2024, organization fined €5 million by CNIL.
14 Aug 2026
Critical14 Aug 2026
Instructure Canvas platform
Education · Records not stated
Supply chain breach on Canvas platform generating 58% of all breach notices in 2026 affecting education sector widely
14 Aug 2026
Critical14 Aug 2026
Comcast
Technology · 35,000,000 records
Cyberattack exposed personal information of Xfinity customers; settled for $117.5 million
14 Aug 2026
High14 Aug 2026
Philips Healthcare Tech
Healthcare · Records not stated
13.5GB blueprints and diagrams exfiltrated by Cl0p
14 Aug 2026
Critical14 Aug 2026
Shell Global
Sector not stated · Records not stated
89GB engineering and facility data exfiltrated by Cl0p
14 Aug 2026
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