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.
5,558
Disclosures in the tracker, all years
2,108
Of those, indexed in 2026
25
Added in November
32
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 5 Nov 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
Critical1 Jun 2024
Ticketmaster
Technology · 560,000,000 records
Data breach tied to Snowflake hack affecting 165 companies in 2024 cyberattack campaign
1 Jun 2024
Critical1 Jun 2024
Snowflake customers (165 companies)
Technology · 165,000,000 records
165 organizations hacked via Snowflake accounts, billions of records stolen and extorted
1 Jun 2024
Critical1 Jun 2024
Organisation not named
Education · Records not stated
The disclosure as indexed does not name the organisation.
Data breach notifying 414,515 members of compromised personal data
1 Jun 2024
High1 Jun 2024
Organisation not named
Education · Records not stated
The disclosure as indexed does not name the organisation.
414,515 members notified of data breach with personal information exposed
1 Jun 2024
High1 Jun 2024
Organisation not named
Education · Records not stated
The disclosure as indexed does not name the organisation.
Data breach notification sent to 414,515 members with personal information exposed
1 Jun 2024
Critical1 Jun 2024
Data breach affecting 414,515 members; PII exposed
Education · Records not stated
Data breach affecting 414,515 members; PII exposed
1 Jun 2024
High1 Jun 2024
Data breach notifying 414,515 members of exposed information
Education · Records not stated
Data breach notifying 414,515 members of exposed information
1 Jun 2024
Critical1 Jun 2024
Rockstar Games
Technology · Records not stated
Breached through Anodot's Snowflake access by ShinyHunters; data theft related to GTA VI
1 Jun 2024
Critical1 Jun 2024
Snowflake (165+ customer organizations)
Technology · 165,000,000 records
Hacker stole data from 165+ Snowflake customers including Rockstar Games, Anodot. Billions of records exposed through compromised credentials.
1 Jun 2024
High1 Jun 2024
Organisation not named
Education · Records not stated
The disclosure as indexed does not name the organisation.
414,515 members notified of data breach exposing personal and professional information
1 Jun 2024
High1 Jun 2024
Breach affecting 414,515 members' personal data
Education · Records not stated
Breach affecting 414,515 members' personal data
1 Jun 2024
High1 Jun 2024
Cleveland City Hall
Government · Records not stated
Ransomware attack forced closure of City Hall; systems taken offline but specific data exposure not detailed
1 Jun 2024
High1 Jun 2024
Data breach affecting 414,515 members' personal information
Education · Records not stated
Data breach affecting 414,515 members' personal information
1 Jun 2024
Critical1 Jun 2024
Data breach affecting 414,515 members including personal information
Education · Records not stated
Data breach affecting 414,515 members including personal information
1 Jun 2024
High1 Jun 2024
Organisation not named
Education · Records not stated
The disclosure as indexed does not name the organisation.
Data breach affecting 414,515 educator members including personal information
1 Jun 2024
Critical1 Jun 2024
Data breach affecting 414,515 members' personal information exposed
Education · Records not stated
Data breach affecting 414,515 members' personal information exposed
1 Jun 2024
High1 Jun 2024
Data breach affecting 414,515 members, personal information exposed
Education · Records not stated
Data breach affecting 414,515 members, personal information exposed
1 Jun 2024
Critical1 Jun 2024
Snowflake (165 customers affected)
Technology · 165,000,000 records
165 organizations' data breached through Snowflake platform via identity-based attacks; UNC5537 cybercrime operation extracted data from multiple customers
1 Jun 2024
High1 Jun 2024
Partnered Health Clinics (Australia)
Healthcare · Records not stated
Cyber-attack exposed Medicare numbers, treatment details, and pathology results
1 Jun 2024
Critical1 Jun 2024
Department for Education
Education · Records not stated
Cyberattack exposed approximately 607,000 education records
1 Jun 2024
Critical1 Jun 2024
Snowflake (165 customer organizations)
Technology · 165,000,000 records
Identity-based attacks targeting Snowflake customers; 165 organizations breached including Rockstar Games, AT&T, Advanced Auto Parts, LendingTree; extortion totaling $2.7M
1 Jun 2024
High1 Jun 2024
Data breach notification sent to 414,515 members
Education · Records not stated
Data breach notification sent to 414,515 members
1 Jun 2024
High1 Jun 2024
Data breach notifying 414,515 members of exposed data
Education · Records not stated
Data breach notifying 414,515 members of exposed data
1 Jun 2024
High1 Jun 2024
Organisation not named
Education · Records not stated
The disclosure as indexed does not name the organisation.
Data breach notifying 414,515 members of exposed personal information
1 Jun 2024
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