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.
5,345
Disclosures in the tracker, all years
2,058
Of those, indexed in 2026
119
Added in October
11
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 27 Oct 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.
74 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.
- France20 Oct 2026US tax preparation businessesThe source does not say how they got in.The Record
Critical14 Jun 2021
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
North Korean Kimsuky group compromised nuclear research institute systems
14 Jun 2021
Critical14 Jun 2021
1.3M patient records exposed in REvil ransomware
Healthcare · 1,300,000 records
1.3M patient records exposed in REvil ransomware
14 Jun 2021
Critical14 Jun 2021
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
North Korean Kimsuky group compromised nuclear research institute systems
14 Jun 2021
Critical14 Jun 2021
1.3M patient records exposed in REvil ransomware
Healthcare · 1,300,000 records
1.3M patient records exposed in REvil ransomware
14 Jun 2021
Critical14 Jun 2021
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
North Korean Kimsuky group compromised nuclear research institute systems
14 Jun 2021
Critical14 Jun 2021
1.3M patient records exposed in REvil ransomware
Healthcare · 1,300,000 records
1.3M patient records exposed in REvil ransomware
14 Jun 2021
Critical14 Jun 2021
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
North Korean Kimsuky group compromised nuclear research institute systems
14 Jun 2021
Critical14 Jun 2021
1.3M patient records exposed in REvil ransomware
Healthcare · 1,300,000 records
1.3M patient records exposed in REvil ransomware
14 Jun 2021
Critical14 Jun 2021
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
North Korean Kimsuky group compromised nuclear research institute systems
14 Jun 2021
Critical14 Jun 2021
1.3M patient records exposed in REvil ransomware
Healthcare · 1,300,000 records
1.3M patient records exposed in REvil ransomware
14 Jun 2021
Critical14 Jun 2021
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
North Korean Kimsuky group compromised nuclear research institute systems
14 Jun 2021
Critical14 Jun 2021
1.3M patient records exposed in REvil ransomware
Healthcare · 1,300,000 records
1.3M patient records exposed in REvil ransomware
14 Jun 2021
Critical14 Jun 2021
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
North Korean Kimsuky group compromised nuclear research institute systems
14 Jun 2021
Critical14 Jun 2021
1.3M patient records exposed in REvil ransomware
Healthcare · 1,300,000 records
1.3M patient records exposed in REvil ransomware
14 Jun 2021
Critical14 Jun 2021
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
North Korean Kimsuky group compromised nuclear research institute systems
14 Jun 2021
Critical14 Jun 2021
1.3M patient records exposed in REvil ransomware
Healthcare · 1,300,000 records
1.3M patient records exposed in REvil ransomware
14 Jun 2021
Critical14 Jun 2021
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
North Korean Kimsuky group compromised nuclear research institute systems
14 Jun 2021
Critical14 Jun 2021
1.3M patient records exposed in REvil ransomware
Healthcare · 1,300,000 records
1.3M patient records exposed in REvil ransomware
14 Jun 2021
High14 Jun 2021
Humber River Hospital (ON)
Healthcare · Records not stated
System outages from cyberattack forced code grey
14 Jun 2021
Critical14 Jun 2021
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
North Korean Kimsuky group compromised nuclear research institute systems
14 Jun 2021
Critical14 Jun 2021
1.3M patient records exposed in REvil ransomware
Healthcare · 1,300,000 records
1.3M patient records exposed in REvil ransomware
14 Jun 2021
Critical11 Jun 2021
1.7M applicant records exposed for years
Government · Records not stated
1.7M applicant records exposed for years
11 Jun 2021
Critical11 Jun 2021
1.7M applicant records exposed for years
Government · Records not stated
1.7M applicant records exposed for years
11 Jun 2021
Critical11 Jun 2021
1.7M applicant records exposed for years
Government · Records not stated
1.7M applicant records exposed for years
11 Jun 2021
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