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.
5,372
Disclosures in the tracker, all years
2,086
Of those, indexed in 2026
4
Added in November
26
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 1 Nov 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
5,607 results · Healthcare disclosures. Clear filters
High1 Jan 2026
Central Maine Healthcare
Healthcare · 145,381 records
Data breach impacting personal, treatment, and health insurance information of 145,381 patients
1 Jan 2026
High1 Jan 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Yearslong data breach of residents' private health-related information exposed
1 Jan 2026
High1 Jan 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Years-long data breach of residents' private health-related information affecting state health program beneficiaries
1 Jan 2026
Critical1 Jan 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
High-profile data breach; Montana court cleared path for regulatory enforcement action
1 Jan 2026
High1 Jan 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Yearslong data breach of residents' private health-related information discovered
1 Jan 2026
High1 Jan 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Patient data compromised in third-party vendor breach from 2025 Cerner incident
1 Jan 2026
High1 Jan 2026
Huntsville Hospital
Healthcare · Records not stated
Patient health information compromised through third-party vendor breach
1 Jan 2026
Critical1 Jan 2026
Amgen
Healthcare · Records not stated
Hackers accessed cloud environment, stealing patient health data and intellectual property
1 Jan 2026
High1 Jan 2026
Yearslong breach
Healthcare · Records not stated
Yearslong breach exposed residents' private health-related information
1 Jan 2026
High1 Jan 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Years-long data breach of residents' private health-related information exposed
1 Jan 2026
Critical1 Jan 2026
MCBS
Healthcare · 1,260,000 records
1.26 million patients exposed in PEAR ransomware attack on medical billing system
1 Jan 2026
Critical1 Jan 2026
Unlimited Technology Systems
Healthcare · 3,800,000 records
3.8 million people impacted by data breach at healthcare software company
1 Jan 2026
High1 Jan 2026
Exact Sciences/Abbott
Healthcare · Records not stated
Sensitive personal health information exposed from at-home diagnostic tests
1 Jan 2026
Critical1 Jan 2026
MCBS Medical
Healthcare · 1,260,000 records
1.26 million patients exposed in PEAR ransomware attack on medical billing/practice-management system
1 Jan 2026
High1 Jan 2026
Quantum Health
Healthcare · Records not stated
Healthcare advocacy vendor breach exposed employees' Social Security numbers
1 Jan 2026
High1 Jan 2026
Yearslong breach exposing residents' private health-related information
Healthcare · Records not stated
Yearslong breach exposing residents' private health-related information
1 Jan 2026
High1 Jan 2026
Data breach; enforcement action by Montana regulators
Healthcare · Records not stated
Data breach; enforcement action by Montana regulators
1 Jan 2026
High1 Jan 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Yearslong data breach of residents' private health-related information disclosed
1 Jan 2026
Critical1 Jan 2026
PEAR ransomware attack
Healthcare · 1,260,000 records
PEAR ransomware attack exposed 1.26 million patients' records
1 Jan 2026
High1 Jan 2026
Aesto Health
Healthcare · Records not stated
Data breach impacted patient information; lawsuit possible
1 Jan 2026
Critical1 Jan 2026
Conduent
Healthcare · 62,200,000 records
Data breach exposed 62.2 million records; third-largest US healthcare hack ever
1 Jan 2026
High1 Jan 2026
Abbott/Exact Sciences
Healthcare · Records not stated
Data breach of at-home diagnostic test users; sensitive personal information exposed
1 Jan 2026
High1 Jan 2026
Years-long data breach of residents' private health-related information
Healthcare · Records not stated
Years-long data breach of residents' private health-related information
1 Jan 2026
High1 Jan 2026
South Florida Injury Centers
Healthcare · 1,525 records
Ransomware attack exposed 1,525 individuals' SSNs and medical records (PHI/PII)
1 Jan 2026
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