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.
5,282
Disclosures in the tracker, all years
1,995
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
Critical7 Aug 2026
Cyber attack
Government · 607,000 records
Cyber attack exposed approximately 607,000 records
7 Aug 2026
Critical7 Aug 2026
Snowflake (via hacks)
Technology · 165,000,000 records
165 breaches affecting over 100 million people via compromised Snowflake platform; Canadian hacker Connor Riley Moucka pleaded guilty
7 Aug 2026
High7 Aug 2026
TD Bank
Finance · Records not stated
Data security incident affecting customer information, separate newer breach in 2026
7 Aug 2026
Critical7 Aug 2026
Queensland Schools
Education · Records not stated
Major cyber breach affecting tens of thousands of students and teachers via education technology platform
7 Aug 2026
High7 Aug 2026
FirstClass Travel Agency
Sector not stated · Records not stated
Alleged data breach of customer records by threat actor on underground hacking forums
7 Aug 2026
Critical7 Aug 2026
TriZetto (Healthcare Tech Provider)
Healthcare · Records not stated
More than 3 million Americans impacted by 2024 breach affecting multiple states
7 Aug 2026
High7 Aug 2026
Transport for London
Government · Records not stated
Cyberattack on heart of London transport network; cost £39 million; two hackers sentenced
7 Aug 2026
Medium7 Aug 2026
Liechtenstein Beneficiary Register
Government · Records not stated
31K corporate beneficiary records exposed
7 Aug 2026
Critical7 Aug 2026
Snowflake Inc.
Technology · 165,000,000 records
Massive data breach involving customer data theft and extortion
7 Aug 2026
High7 Aug 2026
Gaming Platforms (multiple)
Technology · Records not stated
Data leaks exposed over 11 million gaming account credentials including login information
7 Aug 2026
High7 Aug 2026
Partnered Health (Australian Clinics)
Healthcare · Records not stated
Cyber-attack exposed medical records including Medicare numbers and pathology results
7 Aug 2026
High7 Aug 2026
U.S. Civil Service
Government · Records not stated
Thousands of civil servants passwords exposed since early 2024, including White House credentials
7 Aug 2026
Critical7 Aug 2026
VITAS Hospice Services
Healthcare · 300,000 records
300K patient records exposed via vendor account
7 Aug 2026
Critical7 Aug 2026
NYC Health Hospitals
Healthcare · 1,800,000 records
1.8M patient records and biometric data stolen
7 Aug 2026
Medium7 Aug 2026
Levi Strauss & Co.
Sector not stated · Records not stated
Levi Strauss & Co. (Levi's) says that hackers used social engineering on three of its employees to gain access to and steal corporate data stored on their machines.
7 Aug 2026
Medium7 Aug 2026
Alcino Donadel
Education · Records not stated
Alcino Donadel reports: …. Instructure, the edtech company behind learning management system Canvas, suffered one of the largest data breaches in the U.S. this year after cybercriminals gained access through a…
7 Aug 2026
Medium7 Aug 2026
North Carolina Ports
Government · Records not stated
The North Carolina Ports Authority has confirmed that a cyberattack disrupted IT systems and slowed operations at Port of Wilmington, Port of Morehead City, and Charlotte Inland Port.
7 Aug 2026
High7 Aug 2026
Fidelity Investments
Finance · Records not stated
Data breach resulting in $1.25M settlement with Massachusetts regulator
7 Aug 2026
Critical7 Aug 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
Exposed personal information of 700,000 state residents due to inadvertent data exposure
7 Aug 2026
High7 Aug 2026
7 Aug 2026
High7 Aug 2026
ADG Healthcare
Healthcare · Records not stated
Healthcare records compromised by OROVA actor
7 Aug 2026
Critical7 Aug 2026
MCBS Billing Services
Healthcare · Records not stated
3TB PHI and payment data stolen via ransomware
7 Aug 2026
Critical7 Aug 2026
HSIN threat intel platform
Government · Records not stated
HSIN threat intel platform breached for weeks
7 Aug 2026
High7 Aug 2026
Partnered Health
Healthcare · Records not stated
Cyber-attack on Australian healthcare provider exposed personal and medical details from 21 clinics
7 Aug 2026
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