2,555individuals
Unauthorized Access/DisclosureArchived
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
15,206individuals
Unauthorized Access/DisclosureArchived
2,530individuals
Unauthorized Access/DisclosureArchived
3,780individuals
Unauthorized Access/DisclosureArchived
4,032individuals
Hacking/IT IncidentArchived
211,347individuals
Hacking/IT IncidentArchived
88,923individuals
Unauthorized Access/DisclosureArchived
49,881individuals
Hacking/IT IncidentArchived
3,039individuals
Hacking/IT IncidentArchived
1,237individuals
Unauthorized Access/DisclosureArchived
11,595individuals
Hacking/IT IncidentArchived
MO · Jan 13, 2023
Jefferson County Health Center d/b/a Jefferson County Health Department
Healthcare Provider
115,940individuals
Hacking/IT IncidentArchived
125,981individuals
Hacking/IT IncidentArchived
7,528individuals
Hacking/IT IncidentArchived
94,000individuals
Unauthorized Access/DisclosureArchived
4,307individuals
Unauthorized Access/DisclosureArchived
702individuals
Hacking/IT IncidentArchived
931individuals
Hacking/IT IncidentArchived
193,947individuals
Hacking/IT IncidentArchived
1,547individuals
Hacking/IT IncidentArchived
134,000individuals
Unauthorized Access/DisclosureArchived
29,000individuals
Unauthorized Access/DisclosureArchived
528individuals
Unauthorized Access/DisclosureArchived
5,368individuals
Hacking/IT IncidentArchived
1,064individuals
Hacking/IT IncidentArchived
1,195individuals
Unauthorized Access/DisclosureArchived
5,853individuals
Unauthorized Access/DisclosureArchived
1,039individuals
Hacking/IT IncidentArchived
61,170individuals
Hacking/IT IncidentArchived
5,264individuals
Hacking/IT IncidentArchived
187,742individuals
Hacking/IT IncidentArchived
112,072individuals
Hacking/IT IncidentArchived
4,082individuals
Hacking/IT IncidentArchived
6,250individuals
Hacking/IT IncidentArchived
3,501individuals
Hacking/IT IncidentArchived
735individuals
Hacking/IT IncidentArchived
1,832individuals
Hacking/IT IncidentArchived
1,586individuals
Unauthorized Access/DisclosureArchived
1,031individuals
Unauthorized Access/DisclosureArchived
1,969individuals
Hacking/IT IncidentArchived
4,222individuals
Hacking/IT IncidentArchived
3,498individuals
Hacking/IT IncidentArchived
1,205individuals
Unauthorized Access/DisclosureArchived
21,202individuals
Hacking/IT IncidentArchived
6,818individuals
Hacking/IT IncidentArchived
LA · Dec 22, 2022
Southwest Louisiana Health Care System, Inc. d/b/a Lake Charles Memorial Health System
Healthcare Provider
269,752individuals
Hacking/IT IncidentArchived
973individuals
Unauthorized Access/DisclosureArchived
2,000individuals
Hacking/IT IncidentArchived
736individuals
Unauthorized Access/DisclosureArchived
1,164individuals
Hacking/IT IncidentArchived
CA · Dec 20, 2022
Sequoia Benefits and Insurance Services, LLC, d/b/a Sequoia Consulting Group
Business Associate
4,265individuals
Hacking/IT IncidentArchived
14,524individuals
Hacking/IT IncidentArchived
612,000individuals
Hacking/IT IncidentArchived
1,131individuals
Hacking/IT IncidentArchived
4,725individuals
Hacking/IT IncidentArchived
14,194individuals
Hacking/IT IncidentArchived
56,155individuals
Hacking/IT IncidentArchived
4,635individuals
Hacking/IT IncidentArchived
39,000individuals
TheftArchived
35,496individuals
Unauthorized Access/DisclosureArchived
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.