1,062individuals
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
1,562individuals
Hacking/IT IncidentArchived
CO · Oct 25, 2024
Southwest Colorado Mental Health Center, Inc. d/b/a Axis Health System
Healthcare Provider
23,385individuals
Hacking/IT IncidentArchived
139,214individuals
Hacking/IT IncidentArchived
20,024individuals
Hacking/IT IncidentArchived
27,000individuals
Hacking/IT IncidentArchived
6,866individuals
Hacking/IT IncidentArchived
2,247individuals
Hacking/IT IncidentArchived
767individuals
Unauthorized Access/DisclosureArchived
633individuals
Hacking/IT IncidentArchived
2,402individuals
Hacking/IT IncidentArchived
13,206individuals
Hacking/IT IncidentArchived
1,800individuals
Unauthorized Access/DisclosureArchived
56,000individuals
Hacking/IT IncidentArchived
2,743individuals
Hacking/IT IncidentArchived
53,916individuals
Hacking/IT IncidentArchived
3,347individuals
Hacking/IT IncidentArchived
115,837individuals
Hacking/IT IncidentArchived
1,813,538individuals
Hacking/IT IncidentArchived
10,989individuals
Hacking/IT IncidentArchived
NC · Oct 17, 2024
Jacksonville Children's Multispecialty Clinics/Atlantic Medical Management
Healthcare Provider
2,224individuals
Unauthorized Access/DisclosureArchived
NC · Oct 17, 2024
Valleygate Dental Surgery Centers of Charlotte, Fayetteville, and the West, LLC.
Healthcare Provider
14,589individuals
Hacking/IT IncidentArchived
4,845individuals
Hacking/IT IncidentArchived
8,000individuals
Improper DisposalArchived
1,741,152individuals
Hacking/IT IncidentArchived
590individuals
Unauthorized Access/DisclosureArchived
38,000individuals
Hacking/IT IncidentArchived
MD · Oct 11, 2024
Cheasapeake Regional Information System for our Patients, Inc. (CRISP)
Business Associate
8,008individuals
Unauthorized Access/DisclosureArchived
393,358individuals
Hacking/IT IncidentArchived
2,766individuals
Hacking/IT IncidentArchived
11,601individuals
Hacking/IT IncidentUnder investigation
10,737individuals
Hacking/IT IncidentArchived
39,825individuals
Hacking/IT IncidentArchived
9,993individuals
Hacking/IT IncidentArchived
9,271individuals
Hacking/IT IncidentArchived
23,082individuals
Unauthorized Access/DisclosureArchived
320,702individuals
Hacking/IT IncidentArchived
9,941individuals
Hacking/IT IncidentArchived
1,570individuals
Hacking/IT IncidentArchived
10,625individuals
Hacking/IT IncidentArchived
1,331individuals
Hacking/IT IncidentArchived
909,469individuals
Hacking/IT IncidentArchived
497,047individuals
Hacking/IT IncidentArchived
50,000individuals
Hacking/IT IncidentArchived
584individuals
Hacking/IT IncidentArchived
167,387individuals
Hacking/IT IncidentArchived
161,707individuals
Hacking/IT IncidentArchived
468,344individuals
Hacking/IT IncidentArchived
132,609individuals
Hacking/IT IncidentArchived
2,579individuals
Hacking/IT IncidentArchived
1,915individuals
Unauthorized Access/DisclosureArchived
1,228individuals
Hacking/IT IncidentArchived
26,474individuals
Hacking/IT IncidentArchived
242,200individuals
Hacking/IT IncidentArchived
HI · Sep 26, 2024
Community Clinic of Maui, Inc. dba Malama I Ke Ola Health Center
Healthcare Provider
123,816individuals
Hacking/IT IncidentArchived
8,048individuals
Hacking/IT IncidentArchived
57,891individuals
Hacking/IT IncidentArchived
51,627individuals
Hacking/IT IncidentArchived
129,048individuals
Hacking/IT IncidentArchived
FL · Sep 24, 2024
Holistix Treatment Center LLC d/b/a We Level Up Treatment Lake Worth
Healthcare Provider
6,567individuals
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.