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.
5,269
Disclosures in the tracker, all years
1,983
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.
Critical25 Apr 2021
MangaDex
Retail · 2,987,329 records
2,987,329 records exposed, Email addresses, IP addresses, Passwords, Usernames
25 Apr 2021
Critical24 Apr 2021
Smile Brands
Healthcare · 2,590,000 records
2.59M patient records exposed in ransomware attack
24 Apr 2021
Critical23 Apr 2021
ClearVoice Surveys
Retail · 15,074,786 records
15,074,786 records exposed, Dates of birth, Email addresses, Genders, IP addresses and 4 more
23 Apr 2021
High23 Apr 2021
Kentucky unemployment system
Government · Records not stated
500K claimant records exposed via vendor breach
23 Apr 2021
High22 Apr 2021
Phone House España
Retail · 5,223,350 records
5,223,350 records exposed, Dates of birth, Email addresses, Genders, Names and 3 more
22 Apr 2021
Critical22 Apr 2021
ClickStudios / Passwordstate
Technology · Records not stated
Password manager supply chain attack pushed malware to 29K IT users
22 Apr 2021
High21 Apr 2021
Quanta Computer (Taiwan)
Technology · Records not stated
REvil stole Apple product schematics from major contract manufacturer
21 Apr 2021
Critical20 Apr 2021
Quanta Computer
Sector not stated · Records not stated
REvil ransomware stole Apple product schematics from supplier
20 Apr 2021
High20 Apr 2021
New York MTA
Government · Records not stated
Chinese-linked hackers accessed transit authority networks
20 Apr 2021
Critical18 Apr 2021
Domino's India (Jubilant FoodWorks)
Retail · Records not stated
180M order records stolen, names, phone numbers, email, addresses, payment details
18 Apr 2021
High15 Apr 2021
Atlantic Health System
Healthcare · 166,000 records
166K patient records exposed in email compromise
15 Apr 2021
Medium15 Apr 2021
15 Apr 2021
Medium15 Apr 2021
15 Apr 2021
Medium14 Apr 2021
University of Hertfordshire
Education · Records not stated
Cyberattack shut down all online classes and cloud infrastructure
14 Apr 2021
Medium14 Apr 2021
University of Hertfordshire
Education · Records not stated
23K student records exposed in DDoS and breach
14 Apr 2021
High12 Apr 2021
Lakehead University (ON)
Education · Records not stated
Ransomware shut down university systems
12 Apr 2021
High11 Apr 2021
Upstox (India)
Finance · 2,500,000 records
2.5M customer KYC data stolen, PAN cards, passports, signatures exposed
11 Apr 2021
Critical10 Apr 2021
Clubhouse
Technology · 1,300,000 records
1.3M user records scraped and posted on hacker forum
10 Apr 2021
Medium9 Apr 2021
Bio-Rad Laboratories
Sector not stated · Records not stated
37K employee records exposed in phishing
9 Apr 2021
Medium8 Apr 2021
8 Apr 2021
Medium8 Apr 2021
8 Apr 2021
Medium8 Apr 2021
8 Apr 2021
Medium8 Apr 2021
8 Apr 2021
Medium8 Apr 2021
8 Apr 2021
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