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.
5,305
Disclosures in the tracker, all years
2,019
Of those, indexed in 2026
66
Added in October
18
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 19 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
5,016 results · Healthcare disclosures. Clear filters
High1 Jan 2025
Huntsville Hospital
Healthcare · Records not stated
Patient data compromised through third-party vendor breach, exposing health information
1 Jan 2025
Critical1 Jan 2025
Amgen
Healthcare · Records not stated
Hackers accessed cloud environment stealing patient health information and proprietary intellectual property data
1 Jan 2025
High1 Jan 2025
Abbott/Exact Sciences
Healthcare · Records not stated
Patient sensitive personal information exposed from at-home diagnostic tests
1 Jan 2025
High1 Jan 2025
Partnered Health
Healthcare · Records not stated
Personal information and medical details breached across 21 clinics in Australian healthcare cyberattack
1 Jan 2025
Critical1 Jan 2025
SimonMed Imaging
Healthcare · 1,270,000 records
Healthcare data breach from cyberattack exposing 1.27 million patient records
1 Jan 2025
Critical1 Jan 2025
Conduent
Healthcare · 62,200,000 records
62.2 million records exposed in third-largest US healthcare hack ever; 58% increase in breach notices 2026
1 Jan 2025
High1 Jan 2025
Quantum Health
Healthcare · Records not stated
Healthcare advocacy vendor breach exposed employees' social security numbers via vendor data compromise
1 Jan 2025
Critical1 Jan 2025
Exact Sciences/Abbott
Healthcare · Records not stated
Patient data from at-home diagnostic tests exposed; sensitive personal information compromised
1 Jan 2025
Critical1 Jan 2025
Centers Laboratory
Healthcare · 540,000 records
540,000 patient records exposed in cyberattack by Worldleaks group
1 Jan 2025
Critical1 Jan 2025
Cerner
Healthcare · Records not stated
Hackers accessed electronic health records stored on legacy network in January breach
1 Jan 2025
Critical1 Jan 2025
Network breach
Healthcare · 1,260,000 records
Network breach exposed sensitive healthcare billing data affecting 1.26 million people
1 Jan 2025
Critical28 Dec 2024
PowerSchool (student health records)
Healthcare · Records not stated
62M student and staff records including health data exposed
28 Dec 2024
High1 Dec 2024
Abbott Laboratories
Healthcare · Records not stated
Cyber incident affecting medical device company; investigating data breach affecting patient information
1 Dec 2024
Critical1 Dec 2024
Trizetto Provider Solutions
Healthcare · 3,400,000 records
Unauthorized access to IT environment exposed PHI of 3.4 million individuals
1 Dec 2024
Critical1 Dec 2024
UnitedHealthcare
Healthcare · Records not stated
2024 cyberattack exposing sensitive health and insurance data from millions of patients
1 Dec 2024
Critical1 Dec 2024
McLaren Health Care
Healthcare · 3,200,000 records
Two ransomware attacks in 2023 and 2024 affecting 3.2 million patients, settled class-action for $14M
1 Dec 2024
High1 Dec 2024
South Florida Injury Centers
Healthcare · 1,525 records
Data breach exposed 1,525 records including SSNs and medical records (PHI/PII)
1 Dec 2024
High28 Nov 2024
Alder Hey Children's Hospital
Healthcare · Records not stated
INC Ransom gang stole patient records from Liverpool children's hospital
28 Nov 2024
High25 Nov 2024
Wirral University Teaching Hospital
Healthcare · Records not stated
Cyberattack forced hospital to declare major incident, systems offline for days
25 Nov 2024
High1 Nov 2024
Ransomware attack
Healthcare · Records not stated
Ransomware attack exposed personal data of individuals affected
1 Nov 2024
High1 Nov 2024
Unauthorized email access
Healthcare · Records not stated
Unauthorized email access exposed SSNs and medical records for 15 months (Aug 2024-Nov 2024)
1 Nov 2024
Critical1 Nov 2024
Unauthorized email access for 15 months
Healthcare · Records not stated
Unauthorized email access for 15 months exposed SSNs and medical records (Aug 2024-Nov 2024)
1 Nov 2024
High1 Nov 2024
November 2024 ransomware attack
Healthcare · Records not stated
November 2024 ransomware attack exposed data; notification letters sent in July 2026
1 Nov 2024
Critical1 Nov 2024
Unauthorized email access from Aug 2024-Nov 2024
Healthcare · Records not stated
Unauthorized email access from Aug 2024-Nov 2024 exposed SSNs and medical records for 15 months
1 Nov 2024
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