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.
5,383
Disclosures in the tracker, all years
2,097
Of those, indexed in 2026
14
Added in November
25
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 4 Nov 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
Medium11 May 2024
11 May 2024
Critical10 May 2024
The Post Millennial
Technology · 56,973,345 records
56,973,345 records exposed, Email addresses, Genders, IP addresses, Names and 4 more
10 May 2024
Critical10 May 2024
TD Bank (Canada/US)
Finance · 12,500,000 records
12.5M customer records compromised in data breach
10 May 2024
Medium9 May 2024
Tappware
Government · 94,734 records
94,734 records exposed, Dates of birth, Email addresses, Genders, Government issued IDs and 5 more
9 May 2024
High9 May 2024
Christie's Auction House
Sector not stated · 500,000 records
RansomHub stole 500K client records from art marketplace
9 May 2024
High9 May 2024
Christie's
Technology · 500,000 records
RansomHub stole 500K client records from auction house
9 May 2024
Critical9 May 2024
Dell Technologies
Technology · 49,000,000 records
49M customer order records exposed in API scraping
9 May 2024
High9 May 2024
9 May 2024
Critical8 May 2024
Ascension Health Systems
Sector not stated · Records not stated
$1.8B impact from Black Basta ransomware on hospital chain
8 May 2024
Critical8 May 2024
Ascension (tech)
Technology · Records not stated
Black Basta ransomware disrupted clinical operations at 140 hospitals
8 May 2024
Critical8 May 2024
Ascension Health
Healthcare · 5,600,000 records
5.6M patient records compromised in Black Basta ransomware across 140 hospitals
8 May 2024
Medium7 May 2024
7 May 2024
High5 May 2024
5 May 2024
High5 May 2024
City of Wichita KS
Government · Records not stated
LockBit ransomware attack disabled city services
5 May 2024
Medium2 May 2024
2 May 2024
Critical1 May 2024
Dell
Technology · 49,000,000 records
Brute-force attack on partner portal exposed 49 million customer records
1 May 2024
High1 May 2024
European Parliament
Government · Records not stated
Massive data breach in recruiting platform affecting staff data in May 2024
1 May 2024
Critical1 May 2024
Snowflake customers (165+ organizations)
Technology · 165,000,000 records
Identity-based attacks on Snowflake customers including Rockstar Games, AT&T, Advanced Auto Parts, LendingTree; billions of records stolen
1 May 2024
High1 May 2024
Ohio Lottery
Government · 500,000 records
Cybersecurity incident revealing sensitive information of over 500,000 people
1 May 2024
Critical1 May 2024
Ohio Lottery
Government · 500,000 records
Cybersecurity incident exposed sensitive information of over 500K people
1 May 2024
Critical1 May 2024
Identity-based attacks
Technology · Records not stated
Identity-based attacks exposed customer data across 165 organizations; extortion campaign netted $2.7M
1 May 2024
Critical1 May 2024
Rockstar Games
Technology · Records not stated
Data breached through Anodot's Snowflake access as part of 165-organization attack
1 May 2024
High1 May 2024
Taft Stettinius
Legal · Records not stated
Law firm reported data breach among 21 law firms breached in 2024
1 May 2024
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