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 Mar 2026
3 Mar 2026
Medium2 Mar 2026
Quitbro
Technology · 22,874 records
22,874 records exposed, Email addresses, Partial dates of birth, Usernames
2 Mar 2026
Medium2 Mar 2026
Lovora
Technology · 495,556 records
495,556 records exposed, Display names, Email addresses, Profile photos
2 Mar 2026
High2 Mar 2026
KomikoAI
Technology · 1,060,191 records
1,060,191 records exposed, AI prompts, Email addresses, Forum posts, Names
2 Mar 2026
Critical1 Mar 2026
UK Biobank
Healthcare · Records not stated
Confidential health records from the UK Biobank research project were exposed online, leaked dozens of times per Guardian investigation.
1 Mar 2026
High1 Mar 2026
UK BioBank
Healthcare · Records not stated
Confidential health records from the medical research project were exposed online, leaked dozens of times per Guardian investigation.
1 Mar 2026
Critical1 Mar 2026
UK Biobank
Healthcare · Records not stated
Confidential health records from the UK Biobank research project were found exposed online, leaked dozens of times per Guardian investigation.
1 Mar 2026
High1 Mar 2026
Ernst & Young (EY)
Sector not stated · Records not stated
Unauthorized third party accessed a third-party IT service management platform used by EY's IT support, exposing sensitive client information.
1 Mar 2026
Critical1 Mar 2026
Loblaw
Retail · Records not stated
Grocer's March data breach affected about 2 million Canadian customers; names, email addresses, and dates of birth may have been exposed.
1 Mar 2026
High1 Mar 2026
Ernst & Young (EY)
Sector not stated · Records not stated
Third-party IT support platform compromise in March and April 2026 exposed sensitive client information.
1 Mar 2026
High1 Mar 2026
Ernst & Young (EY)
Sector not stated · Records not stated
Compromise of a third-party IT support platform exposed sensitive client information.
1 Mar 2026
High1 Mar 2026
Ernst & Young (EY)
Sector not stated · Records not stated
Compromise of a third-party IT support platform in March and April 2026 exposed sensitive client information.
1 Mar 2026
High1 Mar 2026
Ernst & Young (EY)
Sector not stated · Records not stated
Compromise of a third-party IT support platform in March and April 2026 exposed sensitive client information at EY, one of the largest professional services firms.
1 Mar 2026
High1 Mar 2026
Ernst & Young
Legal · Records not stated
Third-party IT support platform compromise exposed sensitive client information in March-April 2026
1 Mar 2026
Critical1 Mar 2026
UK BioBank
Healthcare · Records not stated
Confidential health records from medical research project leaked online multiple times
1 Mar 2026
High1 Mar 2026
CareCloud
Healthcare · Records not stated
Electronic health records of patients leaked after unauthorized system access
1 Mar 2026
Critical1 Mar 2026
UK BioBank
Healthcare · Records not stated
Confidential health records from flagship medical research project leaked and exposed online multiple times
1 Mar 2026
Critical1 Mar 2026
UK BioBank
Healthcare · Records not stated
Confidential health records from medical research project exposed online, leaked dozens of times
1 Mar 2026
Critical1 Mar 2026
Trizetto Provider Solutions
Healthcare · 3,400,000 records
Unauthorized IT environment access exposing PHI of 3.4 million individuals
1 Mar 2026
High1 Mar 2026
Foster City (government)
Government · Records not stated
Ransomware attack forced city computer systems offline
1 Mar 2026
High1 Mar 2026
Foster City
Government · Records not stated
Ransomware attack forced city computer systems offline
1 Mar 2026
High1 Mar 2026
Berlin Government
Government · Records not stated
Rhysida ransomware attack with claimed data theft before elections
1 Mar 2026
High1 Mar 2026
Foster City
Government · Records not stated
Ransomware attack on city computer network forcing system offline
1 Mar 2026
Critical1 Mar 2026
CareCloud
Healthcare · Records not stated
Healthcare software firm informed SEC of potential patient data leak after hackers accessed electronic health records systems
1 Mar 2026
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