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.
5,609
Disclosures in the tracker, all years
2,123
Of those, indexed in 2026
45
Added in November
45
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 7 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 11 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.
- Canada5 Nov 2026Burnaby School DistrictThe source does not say how they got in.CBC News
- Canada3 Nov 2026Central Okanagan School DistrictThe source does not say how they got in.CBC News
- Canada31 Oct 2026ChainalysisHow they got in: automated AI tools that work through many organizations at once.BleepingComputer
- Canada29 Oct 2026McCarthy Tétrault (with Davies also reporting a breach)The source does not say how they got in.The Globe and Mail
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
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
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
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
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