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.
5,292
Disclosures in the tracker, all years
2,005
Of those, indexed in 2026
50
Added in October
9
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 18 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
4,963 results · Healthcare disclosures. Clear filters
Critical1 Aug 2026
Aesto Health
Healthcare · 9,500,000 records
Data breach affected 9.5 million patients at Birmingham-based healthcare technology company
1 Aug 2026
Critical1 Aug 2026
Baylor Genetics
Healthcare · 2,800,000 records
Data breach exposed medical conditions and Social Security numbers of 2.8 million people
1 Aug 2026
Critical1 Aug 2026
McKesson
Healthcare · 284,000,000 records
Data breach: 284 million records stolen including PII and PHI from oncology/medical-surgical customers
1 Aug 2026
High1 Aug 2026
AnMed Health
Healthcare · Records not stated
Cyberattack caused facility closures and limited operations at nonprofit health system
1 Aug 2026
Critical1 Aug 2026
Baylor Genetics
Healthcare · 2,800,000 records
Data breach exposed medical conditions, Social Security numbers of 2.8M people nationwide
1 Aug 2026
Critical1 Aug 2026
McKesson
Healthcare · 284,000,000 records
Data breach with 284 million records stolen including PII and PHI by ShinyHunters via third-party apps
1 Aug 2026
Critical1 Aug 2026
CareCloud
Healthcare · 3,750,000 records
Personal and medical information of 3.75 million people stolen by hackers
1 Aug 2026
Critical1 Aug 2026
CareCloud
Healthcare · 3,700,000 records
Medical records of 3.7 million patients stolen in cyberattack
1 Aug 2026
Critical1 Aug 2026
Winnipeg Health Sciences Centre
Healthcare · Records not stated
Ransomware attack disrupting hospital operations and recovery ongoing
1 Aug 2026
High1 Aug 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Personal information of current and former employees accessed in data breach
1 Aug 2026
Critical1 Aug 2026
Conduent
Healthcare · 62,200,000 records
62.2 million people affected in third-largest U.S. healthcare hack ever
1 Aug 2026
Critical1 Aug 2026
CareCloud
Healthcare · 3,700,000 records
3.7M patients' medical records stolen in cyberattack, one of largest U.S. healthcare breaches this year
1 Aug 2026
High1 Aug 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Personal information of current and former employees accessed in data breach
1 Aug 2026
High1 Aug 2026
Baylor Genetics
Healthcare · Records not stated
Genetic testing company data breach exposed IVF patient information
1 Aug 2026
Medium1 Aug 2026
SickKids
Healthcare · Records not stated
Personal information of current and former employees accessed in data breach
1 Aug 2026
Critical1 Aug 2026
CareCloud
Healthcare · 3,700,000 records
Medical records of 3.7 million patients stolen in cyberattack, one of largest US healthcare breaches this year
1 Aug 2026
Critical1 Aug 2026
Conduent
Healthcare · 62,200,000 records
62.2 million people impacted, 3rd-largest US healthcare breach ever
1 Aug 2026
Critical1 Aug 2026
CareCloud
Healthcare · 3,700,000 records
3.7M patients' medical records stolen in cyberattack, one of largest healthcare breaches this year
1 Aug 2026
Critical1 Aug 2026
Conduent
Healthcare · 62,200,000 records
62.2 million people affected; third-largest US healthcare breach ever
1 Aug 2026
High1 Aug 2026
Amgen
Healthcare · Records not stated
Hackers accessed cloud environment stealing patient health information and proprietary company data
1 Aug 2026
Critical1 Aug 2026
CareCloud
Healthcare · 3,700,000 records
3.7 million patients' medical records stolen in data breach, one of largest healthcare breaches this year
1 Aug 2026
Critical1 Aug 2026
Conduent
Healthcare · 62,200,000 records
Data breach affects 62.2 million people, third-largest US healthcare hack ever
1 Aug 2026
High1 Aug 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Personal information of current and former employees accessed in data breach
1 Aug 2026
Critical1 Aug 2026
CareCloud
Healthcare · 3,700,000 records
3.7 million patients' medical records stolen in cyberattack, one of largest healthcare breaches in US this year
1 Aug 2026
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