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.
5,273
Disclosures in the tracker, all years
1,986
Of those, indexed in 2026
29
Added in October
15
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 11 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
Medium8 Apr 2021
8 Apr 2021
Medium8 Apr 2021
8 Apr 2021
Medium8 Apr 2021
8 Apr 2021
Medium8 Apr 2021
8 Apr 2021
Critical8 Apr 2021
Receivables Performance Management
Finance · Records not stated
3.7M consumer debt records exposed
8 Apr 2021
Medium8 Apr 2021
8 Apr 2021
Critical4 Apr 2021
Facebook
Technology · 509,458,528 records
509,458,528 records exposed, Dates of birth, Email addresses, Employers, Genders and 4 more
4 Apr 2021
Critical3 Apr 2021
Facebook / Meta
Technology · 533,000,000 records
533M user records leaked including phone numbers
3 Apr 2021
High2 Apr 2021
Elekta
Healthcare · Records not stated
170+ healthcare providers affected by radiotherapy vendor breach
2 Apr 2021
Critical1 Apr 2021
LinkedIn
Technology · 3,500,000,000 records
500M user records leaked including names, emails, phone numbers, workplace info
1 Apr 2021
Medium1 Apr 2021
University of Massachusetts Amherst
Education · Records not stated
65K student records exposed
1 Apr 2021
Critical1 Apr 2021
Codecov
Technology · 29,000 records
CI/CD tool supply chain attack exposing secrets from 29K customer repositories
1 Apr 2021
Critical29 Mar 2021
MobiKwik (India)
Finance · 99,000,000 records
99M user records offered for sale, KYC data, Aadhaar cards, phone numbers
29 Mar 2021
High27 Mar 2021
Harris Federation (London Schools)
Education · Records not stated
50 primary and secondary schools hit by ransomware, student data stolen
27 Mar 2021
High23 Mar 2021
Carding Mafia (March 2021)
Finance · 297,744 records
297,744 records exposed, Email addresses, IP addresses, Passwords, Usernames
23 Mar 2021
High22 Mar 2021
22 Mar 2021
Medium21 Mar 2021
CNA Financial
Technology · Records not stated
75K employee and customer records exposed in Phoenix CryptoLocker ransomware
21 Mar 2021
High20 Mar 2021
Sierra Wireless
Sector not stated · Records not stated
Conti ransomware halted IoT manufacturer production
20 Mar 2021
Critical18 Mar 2021
Acer (Taiwan)
Technology · Records not stated
REvil demanded $50M ransom, financial documents and customer data stolen
18 Mar 2021
Medium18 Mar 2021
California State Controller
Government · Records not stated
9K employee records exposed in phishing
18 Mar 2021
Critical18 Mar 2021
ParkMobile
Technology · 21,000,000 records
21M customer records exposed in vulnerability exploitation
18 Mar 2021
Critical18 Mar 2021
18 Mar 2021
Medium15 Mar 2021
WeLeakInfo
Finance · 11,788 records
11,788 records exposed, Browser user agent details, Email addresses, Employers, IP addresses and 4 more
15 Mar 2021
Medium15 Mar 2021
Saudi Telecom Company (STC)
Technology · Records not stated
Employee credentials compromised in phishing campaign, customer records at risk
15 Mar 2021
Were you affected?