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.
5,421
Disclosures in the tracker, all years
2,136
Of those, indexed in 2026
62
Added in November
24
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 9 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.
- Belgium29 Oct 2026FOD Financiën (Belgian federal finance and tax agency)The source does not say how they got in.The Register
High1 Jun 2026
Organisation not named
Healthcare · 900,000 records
The disclosure as indexed does not name the organisation.
Thousands of NHS patient records stolen in major ransomware attack affecting Essex healthcare
1 Jun 2026
High1 Jun 2026
Organisation not named
Healthcare · 900,000 records
The disclosure as indexed does not name the organisation.
Ransomware attack stolen thousands of NHS patient records from Essex NHS trust
1 Jun 2026
Critical1 Jun 2026
Organisation not named
Healthcare · 900,000 records
The disclosure as indexed does not name the organisation.
Thousands of patient records stolen in ransomware cyberattack on NHS trust
1 Jun 2026
High1 Jun 2026
Tchap (France Government)
Government · Records not stated
Messaging app breach hit 73,467 French government accounts in June 2026
1 Jun 2026
Critical1 Jun 2026
Elasticsearch Database (Unnamed Source)
Technology · Records not stated
Publicly exposed database leaked 24 billion stolen credentials in one of the largest infostealer compilations
1 Jun 2026
High1 Jun 2026
Organisation not named
Healthcare · 900,000 records
The disclosure as indexed does not name the organisation.
Thousands of NHS patient records stolen during major ransomware attack affecting Essex healthcare trust
1 Jun 2026
Medium1 Jun 2026
Nichirei
Retail · Records not stated
Ransomware attack disrupted operations at Japanese frozen-food supplier and logistics firm
1 Jun 2026
Critical1 Jun 2026
Elasticsearch Database (Public)
Technology · Records not stated
24 billion stolen credentials leaked via publicly exposed Elasticsearch database in June 2026
1 Jun 2026
Critical1 Jun 2026
Elasticsearch database
Technology · Records not stated
Publicly exposed database leaked 24 billion stolen credentials in largest infostealer compilation
1 Jun 2026
High1 Jun 2026
Organisation not named
Healthcare · 900,000 records
The disclosure as indexed does not name the organisation.
Ransomware attack stole thousands of NHS patient records from Essex NHS trust
1 Jun 2026
Critical1 Jun 2026
Tchap
Government · Records not stated
France government messaging app breached in June 2026, exposing 73,467 government accounts
1 Jun 2026
Critical1 Jun 2026
Organisation not named
Healthcare · 900,000 records
The disclosure as indexed does not name the organisation.
Thousands of NHS patient records stolen in ransomware attack affecting multiple clinics
1 Jun 2026
Critical1 Jun 2026
Elasticsearch database (public)
Technology · Records not stated
24 billion stolen credentials leaked in publicly exposed database; one of largest infostealer log compilations
1 Jun 2026
High1 Jun 2026
Essex NHS Trust/Synnovis
Healthcare · 900,000 records
Thousands of NHS patient records stolen in ransomware cyberattack on Mid South Essex Foundation Trust
1 Jun 2026
High1 Jun 2026
Organisation not named
Healthcare · 900,000 records
The disclosure as indexed does not name the organisation.
Thousands of patient records stolen during major ransomware attack affecting NHS trust
1 Jun 2026
Critical1 Jun 2026
Ransomware attack
Healthcare · 1,300,000 records
Ransomware attack exposed protected health data of 1.3 million people to dark web
1 Jun 2026
Critical1 Jun 2026
Organisation not named
Healthcare · 900,000 records
The disclosure as indexed does not name the organisation.
Thousands of NHS patient records stolen during major ransomware attack
1 Jun 2026
High1 Jun 2026
Synnovis (NHS Essex)
Healthcare · 900,000 records
Thousands of NHS patient records stolen in ransomware cyberattack
1 Jun 2026
Critical1 Jun 2026
Puerto Rico Government Agency
Government · Records not stated
Cybersecurity loophole exposed 1 million social security numbers in mapping service
1 Jun 2026
High1 Jun 2026
Organisation not named
Healthcare · 900,000 records
The disclosure as indexed does not name the organisation.
Thousands of NHS patient records stolen during ransomware attack
1 Jun 2026
High1 Jun 2026
Organisation not named
Healthcare · 900,000 records
The disclosure as indexed does not name the organisation.
Thousands of patient records stolen in ransomware attack affecting NHS trust
1 Jun 2026
High1 Jun 2026
Organisation not named
Healthcare · 900,000 records
The disclosure as indexed does not name the organisation.
Thousands of NHS patient records stolen in ransomware cyberattack on Essex healthcare provider
1 Jun 2026
High1 Jun 2026
Synnovis/NHS Mid South Essex
Healthcare · 900,000 records
Thousands of NHS patient records stolen in ransomware cyberattack on healthcare trust
1 Jun 2026
High1 Jun 2026
Partnered (Australian clinics)
Healthcare · Records not stated
Cyber-attack exposing sensitive medical records including Medicare numbers, treatment details, pathology results
1 Jun 2026
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