528individuals
Hacking/IT IncidentUnder investigation
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
666individuals
Hacking/IT IncidentArchived
2,071individuals
Hacking/IT IncidentArchived
3,677individuals
Hacking/IT IncidentUnder investigation
CA · Apr 22, 2026
Harbor Developmental Disabilities Foundation (d/b/a Harbor Regional Center)
Business Associate
2,287individuals
Hacking/IT IncidentUnder investigation
145,221individuals
Hacking/IT IncidentUnder investigation
20,202individuals
Hacking/IT IncidentArchived
1,000individuals
Hacking/IT IncidentUnder investigation
2,157individuals
Hacking/IT IncidentUnder investigation
MD · Apr 17, 2026
ASC Ortho Management Company, LLC d/b/a Aligned Orthopedic Partners
Healthcare Provider
7,213individuals
Hacking/IT IncidentUnder investigation
10,216individuals
Hacking/IT IncidentUnder investigation
143,842individuals
Hacking/IT IncidentUnder investigation
2,885individuals
Unauthorized Access/DisclosureArchived
3,709individuals
Hacking/IT IncidentArchived
NJ · Apr 17, 2026
NJ Division of Developmental Disabilities - Hunterdon Developmental Center
Healthcare Provider
807individuals
Unauthorized Access/DisclosureUnder investigation
26,937individuals
Hacking/IT IncidentUnder investigation
6,717individuals
Unauthorized Access/DisclosureArchived
WA · Apr 16, 2026
Spokane United Methodist Homes d/b/a Rockwood Retirement Communities
Healthcare Provider
3,811individuals
Hacking/IT IncidentUnder investigation
1,467individuals
Unauthorized Access/DisclosureArchived
2,123individuals
Hacking/IT IncidentUnder investigation
65,000individuals
Unauthorized Access/DisclosureArchived
1,300individuals
Unauthorized Access/DisclosureUnder investigation
908individuals
Hacking/IT IncidentArchived
857individuals
Hacking/IT IncidentArchived
500individuals
Hacking/IT IncidentUnder investigation
724individuals
Hacking/IT IncidentArchived
6,245individuals
Hacking/IT IncidentUnder investigation
5,892individuals
Hacking/IT IncidentUnder investigation
7,243individuals
Unauthorized Access/DisclosureArchived
VA · Apr 7, 2026
Virginia Department of Behavioral Health and Developmental Services
Healthcare Provider
724individuals
Unauthorized Access/DisclosureArchived
13,310individuals
Hacking/IT IncidentUnder investigation
46,666individuals
Hacking/IT IncidentUnder investigation
92,000individuals
Hacking/IT IncidentUnder investigation
7,509individuals
Hacking/IT IncidentArchived
1,891individuals
Hacking/IT IncidentUnder investigation
755individuals
Hacking/IT IncidentUnder investigation
50,640individuals
Hacking/IT IncidentUnder investigation
687individuals
Hacking/IT IncidentUnder investigation
160,312individuals
Hacking/IT IncidentUnder investigation
3,171individuals
Hacking/IT IncidentUnder investigation
4,266individuals
Hacking/IT IncidentUnder investigation
1,143individuals
Hacking/IT IncidentArchived
5,630individuals
Hacking/IT IncidentUnder investigation
2,507,073individuals
Hacking/IT IncidentUnder investigation
970individuals
Hacking/IT IncidentArchived
9,000individuals
Hacking/IT IncidentUnder investigation
500individuals
Hacking/IT IncidentUnder investigation
33,107individuals
Hacking/IT IncidentUnder investigation
1,221individuals
Unauthorized Access/DisclosureUnder investigation
1,372individuals
Hacking/IT IncidentUnder investigation
570,000individuals
Hacking/IT IncidentUnder investigation
11,407individuals
Hacking/IT IncidentUnder investigation
501individuals
Hacking/IT IncidentUnder investigation
29,688individuals
Hacking/IT IncidentUnder investigation
45,196individuals
Hacking/IT IncidentUnder investigation
500individuals
Hacking/IT IncidentUnder investigation
9,111individuals
Hacking/IT IncidentArchived
State not listed · Mar 26, 2026
CORPORACION DE SERVICIOS MEDICOS PRIMARIOS Y PREVENCION DE HATILLO
Healthcare Provider
24,236individuals
Hacking/IT IncidentUnder investigation
4,698individuals
Hacking/IT IncidentArchived
8,644individuals
Hacking/IT IncidentArchived
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.