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.
5,454
Disclosures in the tracker, all years
2,168
Of those, indexed in 2026
118
Added in November
23
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 14 Nov 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
Medium7 Apr 2023
47K records exposed in email breach
Government · 47,000 records
47K records exposed in email breach
7 Apr 2023
Medium7 Apr 2023
47K records exposed in email breach
Government · 47,000 records
47K records exposed in email breach
7 Apr 2023
Medium7 Apr 2023
47K records exposed in email breach
Government · 47,000 records
47K records exposed in email breach
7 Apr 2023
Medium7 Apr 2023
47K records exposed in email breach
Government · 47,000 records
47K records exposed in email breach
7 Apr 2023
Medium7 Apr 2023
47K records exposed in email breach
Government · 47,000 records
47K records exposed in email breach
7 Apr 2023
Medium7 Apr 2023
47K records exposed in email breach
Government · 47,000 records
47K records exposed in email breach
7 Apr 2023
Medium7 Apr 2023
47K records exposed in email breach
Government · 47,000 records
47K records exposed in email breach
7 Apr 2023
Medium7 Apr 2023
Weerstand (Netherlands Insurance)
Finance · Records not stated
Customer data breach at Dutch insurance intermediary
7 Apr 2023
Medium7 Apr 2023
47K records exposed in email breach
Government · 47,000 records
47K records exposed in email breach
7 Apr 2023
Critical7 Apr 2023
MSI / Micro-Star
Technology · Records not stated
Intel Boot Guard private keys stolen in Money Message ransomware
7 Apr 2023
Critical6 Apr 2023
Enzo Clinical Labs
Healthcare · 2,470,000 records
2.47M patient records exposed in April 2023 ransomware
6 Apr 2023
Medium6 Apr 2023
Rochester Public Schools (MN)
Education · Records not stated
7,500 student records exposed in Medusa ransomware
6 Apr 2023
Critical6 Apr 2023
Enzo Biochem
Healthcare · 2,470,000 records
2.47M patient test results and SSNs exposed in ransomware
6 Apr 2023
Critical5 Apr 2023
Genesis Market
Finance · 8,000,000 records
8,000,000 records exposed, Browser user agent details, Credit card CVV, Credit cards, Dates of birth and 6 more
5 Apr 2023
Medium5 Apr 2023
Sunnybrook Hospital (Toronto)
Healthcare · Records not stated
Research data exposed via third-party vendor
5 Apr 2023
Critical5 Apr 2023
MSI / Micro-Star (Taiwan)
Technology · Records not stated
Money Message ransomware stole 1.5TB, firmware signing keys published
5 Apr 2023
High5 Apr 2023
5 Apr 2023
Medium5 Apr 2023
5 Apr 2023
Critical5 Apr 2023
Apria Healthcare
Healthcare · 1,870,000 records
1.87M patient records exposed in unauthorized access over 2 years
5 Apr 2023
Medium4 Apr 2023
City of Westmount (Quebec)
Government · Records not stated
LockBit attacked Montreal suburb, municipal services and resident data exposed
4 Apr 2023
High4 Apr 2023
KNVB (Dutch Football Association)
Sector not stated · Records not stated
LockBit stole 305GB, employee and member data published on dark web
4 Apr 2023
Medium3 Apr 2023
3 Apr 2023
Medium2 Apr 2023
2 Apr 2023
Critical1 Apr 2023
WebTPA Employer Services
Healthcare · 2,400,000 records
Medical claims administrator hacked in April 2023, 2.4 million individuals notified of exposure
1 Apr 2023
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