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.
5,328
Disclosures in the tracker, all years
2,042
Of those, indexed in 2026
95
Added in October
24
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 22 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
High12 Sep 2020
Organisation not named
Education · Records not stated
The disclosure as indexed does not name the organisation.
100K student and staff records exposed in Maze ransomware
12 Sep 2020
High12 Sep 2020
Organisation not named
Education · Records not stated
The disclosure as indexed does not name the organisation.
100K student and staff records exposed in Maze ransomware
12 Sep 2020
High12 Sep 2020
Organisation not named
Education · Records not stated
The disclosure as indexed does not name the organisation.
100K student and staff records exposed in Maze ransomware
12 Sep 2020
High12 Sep 2020
Organisation not named
Education · Records not stated
The disclosure as indexed does not name the organisation.
100K student and staff records exposed in Maze ransomware
12 Sep 2020
High12 Sep 2020
Organisation not named
Education · Records not stated
The disclosure as indexed does not name the organisation.
100K student and staff records exposed in Maze ransomware
12 Sep 2020
High12 Sep 2020
Organisation not named
Education · Records not stated
The disclosure as indexed does not name the organisation.
100K student and staff records exposed in Maze ransomware
12 Sep 2020
High12 Sep 2020
Organisation not named
Education · Records not stated
The disclosure as indexed does not name the organisation.
100K student and staff records exposed in Maze ransomware
12 Sep 2020
High12 Sep 2020
Organisation not named
Education · Records not stated
The disclosure as indexed does not name the organisation.
100K student and staff records exposed in Maze ransomware
12 Sep 2020
High12 Sep 2020
Organisation not named
Education · Records not stated
The disclosure as indexed does not name the organisation.
100K student and staff records exposed in Maze ransomware
12 Sep 2020
High12 Sep 2020
Organisation not named
Education · Records not stated
The disclosure as indexed does not name the organisation.
100K student and staff records exposed in Maze ransomware
12 Sep 2020
High12 Sep 2020
Organisation not named
Education · Records not stated
The disclosure as indexed does not name the organisation.
100K student and staff records exposed in Maze ransomware
12 Sep 2020
High12 Sep 2020
Organisation not named
Education · Records not stated
The disclosure as indexed does not name the organisation.
100K student and staff records exposed in Maze ransomware
12 Sep 2020
High12 Sep 2020
Organisation not named
Education · Records not stated
The disclosure as indexed does not name the organisation.
100K student and staff records exposed in Maze ransomware
12 Sep 2020
Critical10 Sep 2020
Universitatsklinikum Dusseldorf
Healthcare · Records not stated
Ransomware caused hospital patient death, first known fatality from cyberattack
10 Sep 2020
Critical9 Sep 2020
Excellus BCBS
Healthcare · Records not stated
10M member records exposed including SSNs and financial data
9 Sep 2020
High9 Sep 2020
Razer
Technology · Records not stated
100K gamer records exposed via Elasticsearch misconfiguration
9 Sep 2020
High8 Sep 2020
Alberta Health Services
Healthcare · Records not stated
100,000+ patient records potentially compromised in email breach
8 Sep 2020
High7 Sep 2020
7 Sep 2020
Critical6 Sep 2020
BancoEstado Chile
Finance · Records not stated
REvil ransomware forced closure of all 400+ branches, employee workstations encrypted
6 Sep 2020
Medium5 Sep 2020
Ola Cabs (India)
Technology · Records not stated
Customer and driver data exposed through insecure API endpoints
5 Sep 2020
High4 Sep 2020
4 Sep 2020
High2 Sep 2020
2 Sep 2020
High1 Sep 2020
Experian (South Africa)
Government · 1,284,637 records
1,284,637 records exposed, Email addresses, Employers, Government issued IDs, Names and 2 more
1 Sep 2020
Medium1 Sep 2020
Hartford Public Schools (CT)
Education · Records not stated
70K student and staff records at risk in ransomware
1 Sep 2020
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