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.
5,430
Disclosures in the tracker, all years
2,145
Of those, indexed in 2026
72
Added in November
24
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 10 Nov 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
Worldwide · How they got in
Incidents worldwide, by country.
78 incidents from 10 countries in the last 90 days, each from a public source and reviewed before it is shown. Where the source says how the attackers got in, the row says so.
- Australia4 Nov 2026Bristol City Council (Trading with Schools platform)The source does not say how they got in.Yahoo News Australia (citing BBC)
High3 Aug 2023
270K patient records exposed in Rhysida ransomware
Healthcare · 270,000 records
270K patient records exposed in Rhysida ransomware
3 Aug 2023
High3 Aug 2023
270K patient records exposed in Rhysida ransomware
Healthcare · 270,000 records
270K patient records exposed in Rhysida ransomware
3 Aug 2023
Medium3 Aug 2023
3 Aug 2023
High3 Aug 2023
270K patient records exposed in Rhysida ransomware
Healthcare · 270,000 records
270K patient records exposed in Rhysida ransomware
3 Aug 2023
Critical3 Aug 2023
Prospect Medical Holdings (tech)
Technology · 1,300,000 records
1.3M patient records exposed across 16 hospitals in Rhysida ransomware
3 Aug 2023
Medium3 Aug 2023
Marquette University
Education · Records not stated
95K student and employee records exposed
3 Aug 2023
Critical3 Aug 2023
Prospect Medical Holdings
Healthcare · 1,300,000 records
1.3M patient records exposed in Rhysida ransomware across 16 hospitals
3 Aug 2023
High2 Aug 2023
MagicDuel
Technology · 138,443 records
138,443 records exposed, Email addresses, IP addresses, Nicknames, Passwords
2 Aug 2023
Medium2 Aug 2023
2 Aug 2023
Critical1 Aug 2023
Information Commissioner's Office
Government · Records not stated
Afghan spreadsheet data breach with sensitive government information exposed
1 Aug 2023
Critical1 Aug 2023
Ministry of Defence
Government · Records not stated
Afghan spreadsheet data breach exposed sensitive information; incident disclosed August 2023
1 Aug 2023
Critical1 Aug 2023
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
Afghan spreadsheet data breach exposing sensitive information through ICO
1 Aug 2023
Critical1 Aug 2023
Ministry of Defence (UK)
Government · Records not stated
Afghan spreadsheet data breach exposed sensitive information, investigated by ICO
1 Aug 2023
Critical1 Aug 2023
Ministry of Defence (MoD)
Government · Records not stated
Afghan spreadsheet data breach exposed sensitive information
1 Aug 2023
Medium1 Aug 2023
McLaren Port Huron
Healthcare · 38,000 records
38K patient records exposed in BlackCat ransomware
1 Aug 2023
Medium1 Aug 2023
1 Aug 2023
Medium1 Aug 2023
1 Aug 2023
Medium1 Aug 2023
1 Aug 2023
Medium1 Aug 2023
1 Aug 2023
Medium1 Aug 2023
McLaren Macomb
Healthcare · 92,000 records
92K patient records exposed in BlackCat ransomware
1 Aug 2023
Medium1 Aug 2023
1 Aug 2023
Critical1 Aug 2023
McLaren Health Care
Healthcare · 2,200,000 records
2.2M patient records stolen in BlackCat/ALPHV ransomware
1 Aug 2023
High26 Jul 2023
BreachForums
Retail · 212,156 records
212,156 records exposed, Email addresses, IP addresses, Passwords, Private messages and 1 more
26 Jul 2023
High26 Jul 2023
Kenya MOH (E-Citizen)
Government · Records not stated
Hacktivist attack on Kenya's e-Citizen portal, government services disrupted
26 Jul 2023
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