4,819individuals
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
1,228,093individuals
Hacking/IT IncidentArchived
5,517individuals
Hacking/IT IncidentArchived
10,682individuals
Hacking/IT IncidentArchived
1,866individuals
Unauthorized Access/DisclosureArchived
6,538individuals
Hacking/IT IncidentArchived
4,727individuals
Hacking/IT IncidentArchived
10,464individuals
Hacking/IT IncidentArchived
700,934individuals
Hacking/IT IncidentArchived
774individuals
Unauthorized Access/DisclosureArchived
785individuals
Hacking/IT IncidentArchived
3,755individuals
Hacking/IT IncidentArchived
35,587individuals
Hacking/IT IncidentArchived
14,774individuals
Hacking/IT IncidentArchived
81,043individuals
Hacking/IT IncidentArchived
26,000individuals
Unauthorized Access/DisclosureArchived
1,654individuals
Unauthorized Access/DisclosureArchived
11,427individuals
Hacking/IT IncidentArchived
1,977individuals
Hacking/IT IncidentArchived
662individuals
Hacking/IT IncidentArchived
1,841individuals
Hacking/IT IncidentArchived
1,337individuals
Hacking/IT IncidentArchived
14,603individuals
Hacking/IT IncidentArchived
1,346individuals
Hacking/IT IncidentArchived
541individuals
Hacking/IT IncidentArchived
79,263individuals
Hacking/IT IncidentArchived
128,556individuals
Hacking/IT IncidentArchived
447,426individuals
Hacking/IT IncidentArchived
2,152individuals
Hacking/IT IncidentArchived
2,707individuals
Unauthorized Access/DisclosureArchived
781individuals
Unauthorized Access/DisclosureArchived
12,968individuals
Unauthorized Access/DisclosureArchived
2,714individuals
Hacking/IT IncidentArchived
NC · Jul 19, 2021
The University of North Carolina at Chapel Hill School of Medicine
Healthcare Provider
2,718individuals
Hacking/IT IncidentArchived
8,114individuals
Hacking/IT IncidentArchived
2,756individuals
Hacking/IT IncidentArchived
1,389individuals
Hacking/IT IncidentArchived
68,707individuals
Hacking/IT IncidentArchived
890individuals
Hacking/IT IncidentArchived
947individuals
Hacking/IT IncidentArchived
28,628individuals
Hacking/IT IncidentArchived
64,600individuals
Hacking/IT IncidentArchived
1,717individuals
TheftArchived
91,331individuals
Hacking/IT IncidentArchived
8,664individuals
Hacking/IT IncidentArchived
1,513individuals
Hacking/IT IncidentArchived
FL · Jul 14, 2021
Synergic Healthcare Solutions, Inc. dba TGH Urgent Care powered by Fast Track
Business Associate
558individuals
TheftArchived
WA · Jul 13, 2021
King County Public Hospital District No. 2 d/b/a EvergreenHealth
Healthcare Provider
22,579individuals
Hacking/IT IncidentArchived
985individuals
Hacking/IT IncidentArchived
1,643individuals
Hacking/IT IncidentArchived
576individuals
Unauthorized Access/DisclosureArchived
1,286individuals
Unauthorized Access/DisclosureArchived
1,038individuals
Unauthorized Access/DisclosureArchived
3,191individuals
Hacking/IT IncidentArchived
585individuals
Hacking/IT IncidentArchived
2,808individuals
Hacking/IT IncidentArchived
5,095individuals
Hacking/IT IncidentArchived
2,413,553individuals
Hacking/IT IncidentArchived
705individuals
Unauthorized Access/DisclosureArchived
4,614individuals
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.