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
High8 Mar 2024
Cyberattack compromised member personal data
Healthcare · Records not stated
Cyberattack compromised member personal data
8 Mar 2024
High8 Mar 2024
443K patient records exposed in vendor breach
Healthcare · 443,000 records
443K patient records exposed in vendor breach
8 Mar 2024
High8 Mar 2024
Cyberattack compromised member personal data
Healthcare · Records not stated
Cyberattack compromised member personal data
8 Mar 2024
High8 Mar 2024
443K patient records exposed in vendor breach
Healthcare · 443,000 records
443K patient records exposed in vendor breach
8 Mar 2024
High8 Mar 2024
Cyberattack compromised member personal data
Healthcare · Records not stated
Cyberattack compromised member personal data
8 Mar 2024
High8 Mar 2024
443K patient records exposed in vendor breach
Healthcare · 443,000 records
443K patient records exposed in vendor breach
8 Mar 2024
High8 Mar 2024
Cyberattack compromised member personal data
Healthcare · Records not stated
Cyberattack compromised member personal data
8 Mar 2024
High8 Mar 2024
443K patient records exposed in vendor breach
Healthcare · 443,000 records
443K patient records exposed in vendor breach
8 Mar 2024
High5 Mar 2024
5 Mar 2024
High2 Mar 2024
2 Mar 2024
Critical1 Mar 2024
TriZetto
Healthcare · 3,400,000 records
3.4 million people's health and personal data stolen in 2024 cyberattack, confirmed in 2026
1 Mar 2024
High1 Mar 2024
Commonwealth Healthcare Corporation
Healthcare · Records not stated
Patient data breached
1 Mar 2024
Medium1 Mar 2024
1 Mar 2024
Critical21 Feb 2024
Cencora / AmerisourceBergen
Healthcare · 1,400,000 records
1.4M patient pharmaceutical records exposed in data exfiltration
21 Feb 2024
Critical21 Feb 2024
Change Healthcare / UnitedHealth
Healthcare · 190,000,000 records
190M patient records stolen in ALPHV ransomware attack
21 Feb 2024
High13 Feb 2024
13 Feb 2024
Medium12 Feb 2024
12 Feb 2024
Medium4 Feb 2024
4 Feb 2024
Critical1 Feb 2024
Change Healthcare
Healthcare · 100,000,000 records
Ransomware attack exposed data from up to 100 million people, disrupted U.S. healthcare systems
1 Feb 2024
Critical1 Feb 2024
Change Healthcare
Healthcare · 100,000,000 records
Ransomware attack exposed data of up to 100 million people, disrupted U.S. healthcare systems
1 Feb 2024
Critical1 Feb 2024
Change Healthcare
Healthcare · 100,000,000 records
Ransomware attack exposed data from up to 100M people in healthcare systems
1 Feb 2024
Critical1 Feb 2024
Change Healthcare
Healthcare · 100,000,000 records
Ransomware attack in Feb 2024 exposed data from up to 100 million people, disrupting U.S. healthcare systems
1 Feb 2024
High1 Feb 2024
Advania
Healthcare · Records not stated
Cyberattack affected at least 60 healthcare customers in Sweden
1 Feb 2024
Critical1 Feb 2024
UnitedHealthcare
Healthcare · Records not stated
2024 cyberattack exposed millions of patients' health and insurance information
1 Feb 2024
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