656individuals
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
538individuals
Hacking/IT IncidentArchived
NY · Feb 23, 2022
The Puerto Rican Organization to Motivate, Enltighten, and Serve Addicts, Inc.
Healthcare Provider
33,933individuals
Hacking/IT IncidentArchived
15,788individuals
Hacking/IT IncidentArchived
1,100individuals
Hacking/IT IncidentArchived
27,177individuals
Unauthorized Access/DisclosureArchived
213,543individuals
Hacking/IT IncidentArchived
80,000individuals
Hacking/IT IncidentArchived
3,500individuals
Hacking/IT IncidentArchived
1,322,347individuals
Hacking/IT IncidentArchived
5,746individuals
Hacking/IT IncidentArchived
5,591individuals
Hacking/IT IncidentArchived
10,373individuals
Hacking/IT IncidentArchived
893individuals
Hacking/IT IncidentArchived
106,752individuals
Hacking/IT IncidentArchived
1,130individuals
Hacking/IT IncidentArchived
630individuals
Hacking/IT IncidentArchived
1,039individuals
Hacking/IT IncidentArchived
2,112individuals
Hacking/IT IncidentArchived
6,221individuals
Hacking/IT IncidentArchived
582individuals
Hacking/IT IncidentArchived
3,892individuals
Hacking/IT IncidentArchived
96,253individuals
Hacking/IT IncidentArchived
38,263individuals
Hacking/IT IncidentArchived
6,804individuals
Hacking/IT IncidentArchived
28,776individuals
Hacking/IT IncidentArchived
812individuals
Hacking/IT IncidentArchived
12,000individuals
Hacking/IT IncidentArchived
48,126individuals
Hacking/IT IncidentArchived
115,175individuals
Hacking/IT IncidentArchived
588individuals
Unauthorized Access/DisclosureArchived
UT · Feb 4, 2022
Hofmann Arthritis Institute PLLC and Hofmann Arthritis Institute of Nevada PLLC
Healthcare Provider
13,320individuals
Hacking/IT IncidentArchived
8,629individuals
Unauthorized Access/DisclosureArchived
659,194individuals
Hacking/IT IncidentArchived
7,614individuals
Unauthorized Access/DisclosureArchived
14,986individuals
Hacking/IT IncidentArchived
31,000individuals
Hacking/IT IncidentArchived
17,992individuals
Hacking/IT IncidentArchived
18,300individuals
Hacking/IT IncidentArchived
800individuals
Hacking/IT IncidentArchived
10,023individuals
Hacking/IT IncidentArchived
133,997individuals
Hacking/IT IncidentArchived
1,528individuals
Hacking/IT IncidentArchived
70,031individuals
Hacking/IT IncidentArchived
15,342individuals
Hacking/IT IncidentArchived
16,590individuals
Hacking/IT IncidentArchived
591individuals
Hacking/IT IncidentArchived
61,595individuals
Hacking/IT IncidentArchived
518individuals
Unauthorized Access/DisclosureArchived
1,471individuals
Unauthorized Access/DisclosureArchived
3,475individuals
Hacking/IT IncidentArchived
1,659individuals
Hacking/IT IncidentArchived
3,649individuals
Hacking/IT IncidentArchived
2,406individuals
Hacking/IT IncidentArchived
5,239individuals
Hacking/IT IncidentArchived
6,132individuals
Hacking/IT IncidentArchived
1,010individuals
Unauthorized Access/DisclosureArchived
1,125individuals
Unauthorized Access/DisclosureArchived
1,212individuals
Hacking/IT IncidentArchived
4,897individuals
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.