16,622individuals
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
CO · Apr 7, 2020
Colorado Department of Human Services, Office of Behavioral Health
Healthcare Provider
8,132individuals
Unauthorized Access/DisclosureArchived
500individuals
Hacking/IT IncidentArchived
5,000individuals
Hacking/IT IncidentArchived
5,387individuals
Hacking/IT IncidentArchived
3,000individuals
Hacking/IT IncidentArchived
1,658individuals
TheftArchived
5,096individuals
Hacking/IT IncidentArchived
57,411individuals
Hacking/IT IncidentArchived
14,016individuals
Hacking/IT IncidentArchived
14,795individuals
Hacking/IT IncidentArchived
77,110individuals
Unauthorized Access/DisclosureArchived
310,666individuals
Hacking/IT IncidentArchived
131,825individuals
Hacking/IT IncidentArchived
897individuals
Hacking/IT IncidentArchived
10,700individuals
Hacking/IT IncidentArchived
701individuals
Unauthorized Access/DisclosureArchived
1,000individuals
TheftArchived
1,520individuals
Unauthorized Access/DisclosureArchived
2,300individuals
Hacking/IT IncidentArchived
702individuals
Unauthorized Access/DisclosureArchived
1,731individuals
TheftArchived
574individuals
Unauthorized Access/DisclosureArchived
730individuals
TheftArchived
225,370individuals
Hacking/IT IncidentArchived
3,670individuals
Hacking/IT IncidentArchived
500individuals
LossArchived
38,628individuals
Hacking/IT IncidentArchived
35,804individuals
Hacking/IT IncidentArchived
VA · Mar 20, 2020
Virginia Department of Behavioral Health and Developmental Services
Healthcare Provider
657individuals
Unauthorized Access/DisclosureArchived
836individuals
LossArchived
910individuals
Unauthorized Access/DisclosureArchived
4,854individuals
Hacking/IT IncidentArchived
3,772individuals
Unauthorized Access/DisclosureArchived
9,000individuals
Hacking/IT IncidentArchived
140,781individuals
Hacking/IT IncidentArchived
1,415individuals
Hacking/IT IncidentArchived
2,190individuals
TheftArchived
3,394individuals
Unauthorized Access/DisclosureArchived
2,999individuals
Hacking/IT IncidentArchived
500individuals
TheftArchived
19,556individuals
Hacking/IT IncidentArchived
912individuals
Unauthorized Access/DisclosureArchived
298,532individuals
Hacking/IT IncidentArchived
1,945individuals
Hacking/IT IncidentArchived
1,713individuals
Unauthorized Access/DisclosureArchived
22,894individuals
TheftArchived
3,498individuals
Hacking/IT IncidentArchived
70,000individuals
Hacking/IT IncidentArchived
2,793individuals
TheftArchived
500individuals
Hacking/IT IncidentArchived
15,240individuals
Hacking/IT IncidentArchived
2,610individuals
Unauthorized Access/DisclosureArchived
6,681individuals
Unauthorized Access/DisclosureArchived
800individuals
Unauthorized Access/DisclosureArchived
2,298individuals
LossArchived
15,010individuals
Hacking/IT IncidentArchived
710individuals
Unauthorized Access/DisclosureArchived
75,202individuals
Hacking/IT IncidentArchived
57,900individuals
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.