50,965individuals
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
14,500individuals
Hacking/IT IncidentArchived
16,431individuals
Hacking/IT IncidentArchived
12,217individuals
Hacking/IT IncidentArchived
1,784individuals
Unauthorized Access/DisclosureArchived
4,538individuals
Hacking/IT IncidentArchived
315,337individuals
Hacking/IT IncidentArchived
10,261individuals
Hacking/IT IncidentArchived
95,695individuals
Hacking/IT IncidentArchived
1,700individuals
Hacking/IT IncidentArchived
4,916individuals
Hacking/IT IncidentArchived
77,443individuals
Hacking/IT IncidentArchived
86,412individuals
Hacking/IT IncidentArchived
94,171individuals
Hacking/IT IncidentArchived
8,000individuals
Hacking/IT IncidentArchived
1,440individuals
Hacking/IT IncidentArchived
3,429individuals
Hacking/IT IncidentArchived
1,062individuals
Unauthorized Access/DisclosureArchived
1,676individuals
Unauthorized Access/DisclosureArchived
1,050individuals
Hacking/IT IncidentArchived
591individuals
TheftArchived
884individuals
Hacking/IT IncidentArchived
1,837individuals
Unauthorized Access/DisclosureArchived
36,000individuals
Hacking/IT IncidentArchived
1,700individuals
TheftArchived
883individuals
TheftArchived
21,617individuals
Hacking/IT IncidentArchived
1,678individuals
Hacking/IT IncidentArchived
5,655individuals
Hacking/IT IncidentArchived
353,616individuals
Hacking/IT IncidentArchived
WI · Oct 9, 2020
Froedtert & the Medical College of Wisconsin Community Physicians, Inc.
Healthcare Provider
3,074individuals
Hacking/IT IncidentArchived
45,732individuals
Hacking/IT IncidentArchived
95,000individuals
Hacking/IT IncidentArchived
1,138individuals
Hacking/IT IncidentArchived
2,219individuals
Unauthorized Access/DisclosureArchived
4,973individuals
Hacking/IT IncidentArchived
TN · Oct 7, 2020
Clinical & Forensic Consultation, LLC d/b/a Thriveworks Bristol, Johnson City, and Knoxville
Healthcare Provider
1,360individuals
Unauthorized Access/DisclosureArchived
4,500individuals
Hacking/IT IncidentArchived
74,877individuals
Hacking/IT IncidentArchived
2,618individuals
Hacking/IT IncidentArchived
1,614individuals
Unauthorized Access/DisclosureArchived
NY · Oct 2, 2020
Adults and Children with Learning and Developmental Disabilities, Inc.
Healthcare Provider
603individuals
Hacking/IT IncidentArchived
12,636individuals
Unauthorized Access/DisclosureArchived
1,016individuals
Hacking/IT IncidentArchived
254,786individuals
Unauthorized Access/DisclosureArchived
193,223individuals
Hacking/IT IncidentArchived
6,258individuals
Hacking/IT IncidentArchived
118,874individuals
Hacking/IT IncidentArchived
TX · Sep 30, 2020
Alliance Spine and Pain Management, PLLC d/b/a Freedom Spine & Pain Center
Healthcare Provider
2,235individuals
Hacking/IT IncidentArchived
21,236individuals
Hacking/IT IncidentArchived
13,619individuals
Hacking/IT IncidentArchived
2,527individuals
Hacking/IT IncidentArchived
7,164individuals
Hacking/IT IncidentArchived
563individuals
Unauthorized Access/DisclosureArchived
17,219individuals
Hacking/IT IncidentArchived
2,851individuals
Hacking/IT IncidentArchived
1,474,000individuals
Hacking/IT IncidentArchived
2,374individuals
Hacking/IT IncidentArchived
6,034individuals
Hacking/IT IncidentArchived
64,840individuals
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.