28,024individuals
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
1,370individuals
Unauthorized Access/DisclosureArchived
744individuals
Unauthorized Access/DisclosureArchived
3,684individuals
Hacking/IT IncidentArchived
14,984individuals
Hacking/IT IncidentArchived
26,333individuals
Hacking/IT IncidentArchived
260,740individuals
Hacking/IT IncidentArchived
1,072individuals
Hacking/IT IncidentArchived
23,377individuals
Hacking/IT IncidentArchived
7,873individuals
Hacking/IT IncidentArchived
WV · Apr 28, 2022
Regional Eye Associates, Inc. & Surgical Eye Center of Morgantown
Healthcare Provider
194,035individuals
Hacking/IT IncidentArchived
20,932individuals
Hacking/IT IncidentArchived
7,600individuals
Hacking/IT IncidentArchived
20,651individuals
Hacking/IT IncidentArchived
53,818individuals
Hacking/IT IncidentArchived
1,035individuals
Hacking/IT IncidentArchived
15,136individuals
Hacking/IT IncidentArchived
345,353individuals
Hacking/IT IncidentArchived
227,943individuals
Hacking/IT IncidentArchived
897individuals
LossArchived
WA · Apr 22, 2022
King County Public Hospital District No. 2 d/b/a EvergreenHealth
Healthcare Provider
20,533individuals
Hacking/IT IncidentArchived
3,717individuals
Unauthorized Access/DisclosureArchived
616individuals
Unauthorized Access/DisclosureArchived
1,322individuals
Hacking/IT IncidentArchived
727individuals
Hacking/IT IncidentArchived
875individuals
Hacking/IT IncidentArchived
5,129individuals
Hacking/IT IncidentArchived
89,955individuals
Hacking/IT IncidentArchived
9,969individuals
Hacking/IT IncidentArchived
10,502individuals
Hacking/IT IncidentArchived
5,944individuals
Hacking/IT IncidentArchived
3,653individuals
Hacking/IT IncidentArchived
59,872individuals
Hacking/IT IncidentArchived
1,625individuals
Unauthorized Access/DisclosureArchived
745individuals
Unauthorized Access/DisclosureArchived
8,015individuals
Unauthorized Access/DisclosureArchived
794individuals
Unauthorized Access/DisclosureArchived
1,186individuals
Hacking/IT IncidentArchived
1,115individuals
Improper DisposalArchived
24,029individuals
Hacking/IT IncidentArchived
52,224individuals
Hacking/IT IncidentArchived
15,401individuals
TheftArchived
1,226individuals
Hacking/IT IncidentArchived
510,574individuals
Hacking/IT IncidentArchived
9,196individuals
Hacking/IT IncidentArchived
502individuals
Unauthorized Access/DisclosureArchived
900individuals
Unauthorized Access/DisclosureArchived
1,748individuals
Unauthorized Access/DisclosureArchived
5,852individuals
Hacking/IT IncidentArchived
4,295individuals
Hacking/IT IncidentArchived
24,000individuals
TheftArchived
13,000individuals
Hacking/IT IncidentArchived
30,417individuals
Hacking/IT IncidentArchived
2,292individuals
Hacking/IT IncidentArchived
422,531individuals
Hacking/IT IncidentArchived
716individuals
Unauthorized Access/DisclosureArchived
7,147individuals
Hacking/IT IncidentArchived
29,892individuals
Hacking/IT IncidentArchived
695individuals
Unauthorized Access/DisclosureArchived
1,118individuals
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.