Disclosure tracker › Healthcare disclosures
Intelligence · Disclosure tracker
Healthcare disclosures
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.
5,310
Disclosures in the tracker, all years
2,025
Of those, indexed in 2026
76
Added in October
22
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 20 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
5,069 results · Healthcare disclosures. Clear filters
High1 Feb 2026
Ransomware attack and data
Healthcare · Records not stated
Ransomware attack and data leak exposed Multiethnic Cohort Study data including driver's license numbers and voter registration
1 Feb 2026
Critical1 Feb 2026
TriZetto
Healthcare · Records not stated
Healthcare tech provider breach affecting over 3 million Americans from 2024 incident
1 Feb 2026
High1 Feb 2026
Conduent/Anthem
Healthcare · Records not stated
Data breach impacts some Anthem members; breach contained with no evidence of misuse
1 Feb 2026
High1 Feb 2026
Anthem/Conduent
Healthcare · Records not stated
Data breach impacted some Anthem members; Conduent reported breach contained with no evidence of misuse
1 Feb 2026
High1 Feb 2026
Anthem
Healthcare · Records not stated
Data breach via Conduent affecting some Anthem insurance members
1 Feb 2026
Critical1 Feb 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack brought down computer network, canceling surgeries and closing clinics
1 Feb 2026
High1 Feb 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack brought down computer network, causing surgeries to be canceled and clinics closed
1 Feb 2026
High1 Feb 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack shut down computer network; surgeries canceled and clinics closed
1 Feb 2026
High1 Feb 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack disabled computer network; surgeries canceled and clinics closed
1 Feb 2026
High1 Feb 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack on hospital network caused surgeries to be canceled and clinics closed
1 Feb 2026
High1 Feb 2026
Huntsville Hospital Health System
Healthcare · Records not stated
Patient data compromised through third-party breach affecting multiple facilities
1 Feb 2026
High1 Feb 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack disabled computer network, cancelled surgeries and closed clinics
1 Feb 2026
High1 Feb 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack disrupted network; surgeries canceled and clinics closed
1 Feb 2026
High1 Feb 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack brought down computer network, canceled surgeries and closed clinics
1 Feb 2026
High1 Feb 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack shut down computer network, cancelled surgeries and clinics
1 Feb 2026
High1 Feb 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack on hospital network forced closure of clinics and cancellation of surgeries
1 Feb 2026
High1 Feb 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack brought down computer network; surgeries canceled, clinics closed
1 Feb 2026
High1 Feb 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack shut down computer network; surgeries canceled, clinics closed
1 Feb 2026
High1 Feb 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack shut down computer network, surgeries canceled, clinics closed
1 Feb 2026
High1 Feb 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack brought down computer network; surgeries canceled and clinics closed
1 Feb 2026
High1 Feb 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack shut down computer network, canceled surgeries and closed clinics
1 Feb 2026
High1 Feb 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack shut down computer network, forced surgery cancellations and clinic closures
1 Feb 2026
High1 Feb 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack brought down computer network, forcing surgery cancellations and clinic closures
1 Feb 2026
High1 Feb 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack brought down computer network, forced surgery cancellations and clinic closures
1 Feb 2026
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