5,445individuals
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
24,937individuals
Hacking/IT IncidentArchived
1,129individuals
Hacking/IT IncidentArchived
121,190individuals
Hacking/IT IncidentUnder investigation
688,852individuals
Hacking/IT IncidentArchived
16,665individuals
Unauthorized Access/DisclosureArchived
767individuals
Hacking/IT IncidentArchived
6,934individuals
Hacking/IT IncidentArchived
501individuals
Hacking/IT IncidentArchived
77,434individuals
Hacking/IT IncidentArchived
14,696individuals
Hacking/IT IncidentArchived
17,490individuals
Hacking/IT IncidentArchived
13,055individuals
Hacking/IT IncidentArchived
2,297individuals
Hacking/IT IncidentArchived
9,309individuals
Unauthorized Access/DisclosureArchived
23,118individuals
Hacking/IT IncidentArchived
129,031individuals
Hacking/IT IncidentArchived
178,742individuals
Hacking/IT IncidentArchived
CA · Apr 25, 2024
County of Los Angeles Departments of Health Services and Public Health
Healthcare Provider
252,856individuals
Hacking/IT IncidentArchived
40,569individuals
Hacking/IT IncidentArchived
27,170individuals
Hacking/IT IncidentArchived
464,088individuals
Hacking/IT IncidentArchived
43,673individuals
Hacking/IT IncidentArchived
26,577individuals
Hacking/IT IncidentArchived
1,165individuals
Hacking/IT IncidentArchived
569,012individuals
Hacking/IT IncidentArchived
34,518individuals
Hacking/IT IncidentArchived
76,165individuals
Hacking/IT IncidentArchived
4,169individuals
Unauthorized Access/DisclosureArchived
8,111individuals
Hacking/IT IncidentArchived
36,075individuals
Hacking/IT IncidentArchived
596individuals
Hacking/IT IncidentArchived
36,353individuals
Hacking/IT IncidentArchived
5,078individuals
Hacking/IT IncidentArchived
8,172individuals
Hacking/IT IncidentArchived
175,195individuals
Hacking/IT IncidentArchived
8,819individuals
Hacking/IT IncidentArchived
2,282individuals
Hacking/IT IncidentArchived
ID · Apr 17, 2024
Orthopedic and Fracture Clinic dba West Idaho Orthopedics and Sports Medicine
Healthcare Provider
6,146individuals
Hacking/IT IncidentArchived
47,106individuals
Hacking/IT IncidentArchived
4,562individuals
Unauthorized Access/DisclosureArchived
1,778individuals
Unauthorized Access/DisclosureArchived
681individuals
Hacking/IT IncidentArchived
568individuals
Improper DisposalArchived
1,338individuals
Hacking/IT IncidentArchived
5,576individuals
Hacking/IT IncidentArchived
7,539individuals
Hacking/IT IncidentArchived
11,321individuals
Hacking/IT IncidentArchived
2,792individuals
Hacking/IT IncidentArchived
13,400,000individuals
Unauthorized Access/DisclosureArchived
899individuals
Hacking/IT IncidentArchived
6,963individuals
Unauthorized Access/DisclosureArchived
426,536individuals
Hacking/IT IncidentArchived
27,332individuals
Hacking/IT IncidentArchived
533,809individuals
Hacking/IT IncidentArchived
240,214individuals
Hacking/IT IncidentArchived
3,852individuals
Hacking/IT IncidentArchived
717individuals
Unauthorized Access/DisclosureArchived
56,676individuals
Hacking/IT IncidentArchived
8,266individuals
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.