8,627,242individuals
Hacking/IT IncidentArchived
The Signal Directory
Health Data Breach Tracker
Search every US health data breach of 500 or more people reported to HHS OCR since 2009. Filter by entity, type and date. Built from the OCR public breach portal.
Breaches listed
8,066
2009 to 2026
Individuals affected
1,106,146,271
sum of reported counts
Under investigation
open OCR cases
Top breach types
- 4,864
- 1,694
- 1,003
- 216
Monthly roundups
8,066 breaches
500individuals
Hacking/IT IncidentArchived
387,830individuals
Hacking/IT IncidentArchived
36,275individuals
Hacking/IT IncidentArchived
2,193individuals
Hacking/IT IncidentArchived
909individuals
Hacking/IT IncidentArchived
5,062individuals
Hacking/IT IncidentArchived
3,549individuals
Hacking/IT IncidentArchived
224,486individuals
Hacking/IT IncidentArchived
6,270individuals
Hacking/IT IncidentArchived
69,765individuals
Hacking/IT IncidentArchived
10,172individuals
Hacking/IT IncidentArchived
2,662,337individuals
Hacking/IT IncidentArchived
14,453individuals
Hacking/IT IncidentArchived
2,219individuals
Hacking/IT IncidentArchived
IA · May 24, 2023
UI Community Home Care, a subsidiary of University of Iowa Health System
Healthcare Provider
67,897individuals
Hacking/IT IncidentArchived
3,833individuals
Hacking/IT IncidentArchived
5,525individuals
Hacking/IT IncidentArchived
4,135individuals
Hacking/IT IncidentArchived
3,336individuals
Hacking/IT IncidentArchived
1,474individuals
Hacking/IT IncidentArchived
19,032individuals
Hacking/IT IncidentArchived
46,679individuals
Hacking/IT IncidentArchived
CA · May 18, 2023
Hiawatha Harris MD, Inc. dba Pathways to Wellness Medication Clinics
Healthcare Provider
9,182individuals
Hacking/IT IncidentArchived
7,456individuals
Hacking/IT IncidentArchived
28,003individuals
Hacking/IT IncidentArchived
736individuals
Unauthorized Access/DisclosureArchived
686individuals
Unauthorized Access/DisclosureArchived
904,672individuals
Hacking/IT IncidentArchived
NJ · May 16, 2023
State of New Jersey Department of Human Services, Division of Medical Assistance and Health Services
Health Plan
552individuals
Unauthorized Access/DisclosureArchived
9,197individuals
Hacking/IT IncidentArchived
248,359individuals
Hacking/IT IncidentArchived
607,787individuals
Hacking/IT IncidentArchived
1,925,397individuals
Hacking/IT IncidentArchived
4,598individuals
TheftArchived
IL · May 12, 2023
Illinois Department of Healthcare and Family Services, Illinois Department of Human Services
Health Plan
50,839individuals
Hacking/IT IncidentArchived
5,815,591individuals
Hacking/IT IncidentArchived
1,809individuals
Unauthorized Access/DisclosureArchived
17,728individuals
Hacking/IT IncidentArchived
1,116individuals
Unauthorized Access/DisclosureArchived
12,759individuals
Unauthorized Access/DisclosureArchived
28,975individuals
Hacking/IT IncidentArchived
5,242individuals
Hacking/IT IncidentArchived
103,974individuals
Hacking/IT IncidentArchived
1,034individuals
TheftArchived
25,527individuals
Hacking/IT IncidentArchived
1,508individuals
Hacking/IT IncidentArchived
8,725individuals
Hacking/IT IncidentArchived
1,971individuals
Unauthorized Access/DisclosureArchived
26,561individuals
Hacking/IT IncidentArchived
49,000individuals
Unauthorized Access/DisclosureArchived
5,259individuals
Hacking/IT IncidentArchived
WV · May 2, 2023
Herbert J. Thomas Memorial Hospital Association dba Thomas Memorial Hospital
Healthcare Provider
2,492individuals
Hacking/IT IncidentArchived
10,256individuals
Unauthorized Access/DisclosureArchived
575individuals
Improper DisposalArchived
877individuals
Unauthorized Access/DisclosureArchived
48,392individuals
Hacking/IT IncidentArchived
5,727individuals
Hacking/IT IncidentArchived
56,816individuals
Hacking/IT IncidentArchived
767individuals
Unauthorized Access/DisclosureArchived
About this data
By Dr. Dereck Mush, MD, MBA, Editor In Chief
It currently holds 8,066 breaches, with submission dates from October 21, 2009 to October 9, 2026, and it refreshes every week from OCR's public breach portal.
We built it for the people who have to act on this data: health system CISOs and security teams benchmarking their own risk, compliance and privacy leads tracking how breaches are reported, and investors doing diligence on healthcare companies and their vendors.
Here's how to read it. Each row is a single report filed with OCR. It shows the covered entity, its state and entity type, the number of individuals affected, the breach type (for example hacking or IT incident, or unauthorized access), where the information was held, and the date it was submitted. Use the filters to narrow by submission date, entity type or breach type, and open any row for its detail page. The monthly roundups group new reports by submission month, so you can see what changed recently without scrolling the full list.
- Source. Every record comes from the HHS OCR breach portal, which lists breaches of unsecured protected health information affecting 500 or more individuals. We show the data as OCR reports it and don't add or change the reported facts. Any editorial note we add is labeled as ours.
- Under investigation vs archive. OCR keeps two lists. "Under investigation" lists HIPAA breaches reported within the last 24 months that are currently under investigation by the Office for Civil Rights. "Archive" holds resolved HIPAA breach reports and/or reports older than 24 months. A breach can move from one list to the other between weekly refreshes.
- Individuals affected. These are the counts reported to OCR. Entities can revise them, and the same person can appear in more than one breach, especially when a single vendor incident is reported separately by several covered entities. Adding the counts together will overstate the number of unique people affected.
- No implication of wrongdoing. A listing means a breach was reported to OCR. It doesn't mean the entity broke the law or was at fault beyond what OCR itself has published. Check OCR's own records for any finding, resolution or penalty.
- Updates. The tracker refreshes weekly. If you spot something that doesn't match OCR's portal, tell us and we'll check it against the source.
Source: HHS Office for Civil Rights Breach Portal. Latest submission in the data: Oct 9, 2026. Refreshed weekly from the portal.