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.
5,291
Disclosures in the tracker, all years
2,004
Of those, indexed in 2026
49
Added in October
9
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 17 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
Worldwide · How they got in
Incidents worldwide, by country.
64 incidents from 11 countries in the last 90 days, each from a public source and reviewed before it is shown. Where the source says how the attackers got in, the row says so.
- Canada2 Oct 2026Kingston PoliceHow they got in: stolen or reused passwords.Global News
- Canada1 Oct 2026Archives Canada / Canadian government websitesHow they got in: automated AI tools that work through many organizations at once.CTV News
- Canada1 Oct 2026Library and Archives CanadaHow they got in: automated AI tools that work through many organizations at once.CTV News
High17 Sep 2026
Dell
Technology · Records not stated
Confirmed data breach exposing sensitive user data
17 Sep 2026
High17 Sep 2026
DocketWise
Legal · 143,000 records
Data breach impacts 143,000 individuals
17 Sep 2026
Critical17 Sep 2026
Unlimited Technology Systems
Technology · 3,800,000 records
3.8 million records exposed in data breach
17 Sep 2026
High17 Sep 2026
Logitech
Technology · Records not stated
Data breach confirmed following Oracle hack victim designation
17 Sep 2026
Critical17 Sep 2026
ApolloMD
Healthcare · 626,000 records
Data breach impacting 626,000 individuals
17 Sep 2026
Critical17 Sep 2026
Columbia University
Education · 860,000 records
Data breach impacting 860,000 individuals
17 Sep 2026
High17 Sep 2026
Ohio County
Government · Records not stated
Ransomware attack impacting over 45,000 residents
17 Sep 2026
High17 Sep 2026
Krispy Kreme
Retail · 160,000 records
Data breach from 2024 attack stealing data from over 160,000 people
17 Sep 2026
High17 Sep 2026
Coinbase
Finance · 70,000 records
Data breach impacting nearly 70,000 individuals involving $20 million
17 Sep 2026
Critical17 Sep 2026
UK Legal Aid Agency
Government · Records not stated
Massive government data breach following hack
17 Sep 2026
Critical17 Sep 2026
700Credit
Finance · 5,800,000 records
Data breach affecting 5.8 million individuals with personal information exposed
17 Sep 2026
Critical17 Sep 2026
Prosper
Finance · 10,000,000 records
Data breach affecting approximately 10 million individuals
17 Sep 2026
High17 Sep 2026
Kaplan
Education · Records not stated
Data breach impacting multiple individuals
17 Sep 2026
High17 Sep 2026
Dartmouth College
Education · Records not stated
Data breach following Clop extortion attack
17 Sep 2026
Critical17 Sep 2026
Coupang
Retail · 33,700,000 records
33.7M customers' data exposed; South Korea fined company $409M
17 Sep 2026
High17 Sep 2026
AT&T
Technology · 109,000,000 records
Data breach with $177 million settlement; customers eligible for up to $7,500 compensation
17 Sep 2026
Critical17 Sep 2026
South African government healthcare lab network
Healthcare · Records not stated
South African government healthcare lab network impacted by ransomware attack affecting laboratory services
17 Sep 2026
High17 Sep 2026
Cell C
Technology · Records not stated
South African telecom provider suffered data breach following 2024 cyberattack, exposing customer data
17 Sep 2026
Critical17 Sep 2026
Free Mobile
Technology · 24,000,000 records
24 million customer breach in 2024; fined €42 million for lack of basic security controls
17 Sep 2026
High17 Sep 2026
CommonSpirit Health
Healthcare · 19,027 records
Data breach exposed medical and personal data of 19,027 individuals
17 Sep 2026
Critical17 Sep 2026
McLaren Health Care
Healthcare · 3,200,000 records
Ransomware attacks in 2023 and 2024 exposed 3.2 million patient records
17 Sep 2026
High17 Sep 2026
Veradigm
Healthcare · Records not stated
Electronic health record company suffered vendor breach exposing customer data
17 Sep 2026
Critical17 Sep 2026
MCBS
Healthcare · 1,200,000 records
Medical business management company breach exposed 1.2 million individuals' personal data
17 Sep 2026
Critical17 Sep 2026
TriZetto Provider Solutions
Healthcare · 3,400,000 records
PHI of 3.4M individuals exposed via unauthorized IT environment access
17 Sep 2026
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