FL · Oct 6, 2025
Cardiovascular Medicine Associates (doing business as MyCardiologist)
Healthcare Provider
2,248individuals
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
62,238individuals
Hacking/IT IncidentUnder investigation
75,054individuals
Hacking/IT IncidentUnder investigation
18,819individuals
Hacking/IT IncidentUnder investigation
3,177individuals
Unauthorized Access/DisclosureUnder investigation
103,879individuals
Hacking/IT IncidentUnder investigation
501individuals
Hacking/IT IncidentArchived
501individuals
Hacking/IT IncidentArchived
896individuals
Unauthorized Access/DisclosureArchived
5,357individuals
Unauthorized Access/DisclosureUnder investigation
21,866individuals
Hacking/IT IncidentUnder investigation
620individuals
Hacking/IT IncidentArchived
2,023individuals
Hacking/IT IncidentArchived
10,800individuals
Hacking/IT IncidentArchived
216,000individuals
Hacking/IT IncidentUnder investigation
2,708individuals
LossArchived
1,643individuals
Unauthorized Access/DisclosureArchived
942individuals
Hacking/IT IncidentArchived
607individuals
Unauthorized Access/DisclosureArchived
93,921individuals
Unauthorized Access/DisclosureArchived
3,437individuals
Unauthorized Access/DisclosureArchived
25,341individuals
Hacking/IT IncidentArchived
14,581individuals
Hacking/IT IncidentArchived
1,528individuals
Hacking/IT IncidentUnder investigation
912individuals
Unauthorized Access/DisclosureArchived
2,680individuals
Hacking/IT IncidentArchived
4,945individuals
Unauthorized Access/DisclosureArchived
70,129individuals
Hacking/IT IncidentUnder investigation
11,866individuals
Hacking/IT IncidentUnder investigation
1,166individuals
Hacking/IT IncidentUnder investigation
171,862individuals
Hacking/IT IncidentArchived
257,481individuals
Hacking/IT IncidentArchived
410,491individuals
Hacking/IT IncidentUnder investigation
11,538individuals
Hacking/IT IncidentUnder investigation
501individuals
Hacking/IT IncidentUnder investigation
2,672,036individuals
Hacking/IT IncidentUnder investigation
FL · Sep 19, 2025
Health & Palliative Services of the Treasure Coast, Inc d/b/a Treasure Coast Hospice (“Treasure Health”)
Healthcare Provider
13,234individuals
Hacking/IT IncidentArchived
1,164individuals
Hacking/IT IncidentArchived
13,083individuals
Hacking/IT IncidentUnder investigation
NC · Sep 19, 2025
The University of North Carolina at Chapel Hill - School of Medicine
Healthcare Provider
799individuals
Hacking/IT IncidentArchived
6,377individuals
Hacking/IT IncidentArchived
36,332individuals
Hacking/IT IncidentUnder investigation
77,771individuals
Hacking/IT IncidentArchived
27,001individuals
Hacking/IT IncidentUnder investigation
456,385individuals
Hacking/IT IncidentArchived
1,186individuals
Unauthorized Access/DisclosureArchived
1,428individuals
Hacking/IT IncidentUnder investigation
7,977individuals
Hacking/IT IncidentArchived
2,176individuals
Hacking/IT IncidentArchived
3,295individuals
Hacking/IT IncidentArchived
654individuals
Hacking/IT IncidentArchived
2,084individuals
Hacking/IT IncidentArchived
628individuals
Hacking/IT IncidentArchived
699individuals
Hacking/IT IncidentArchived
601individuals
Hacking/IT IncidentArchived
1,070individuals
Hacking/IT IncidentArchived
672individuals
Hacking/IT IncidentArchived
2,514individuals
Hacking/IT IncidentArchived
8,463individuals
Hacking/IT IncidentArchived
1,972individuals
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.