542,377individuals
Hacking/IT IncidentUnder investigation
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
501individuals
Hacking/IT IncidentUnder investigation
500individuals
Hacking/IT IncidentUnder investigation
7,117individuals
Hacking/IT IncidentUnder investigation
58,778individuals
Unauthorized Access/DisclosureArchived
9,810individuals
Hacking/IT IncidentUnder investigation
83,114individuals
Hacking/IT IncidentUnder investigation
62,150individuals
Hacking/IT IncidentUnder investigation
6,721individuals
Unauthorized Access/DisclosureArchived
500individuals
Hacking/IT IncidentUnder investigation
501individuals
Hacking/IT IncidentArchived
6,909individuals
Unauthorized Access/DisclosureArchived
537individuals
Hacking/IT IncidentArchived
8,545individuals
Hacking/IT IncidentUnder investigation
500individuals
Hacking/IT IncidentUnder investigation
1,607individuals
Unauthorized Access/DisclosureUnder investigation
893individuals
Hacking/IT IncidentUnder investigation
7,692individuals
Hacking/IT IncidentUnder investigation
2,480individuals
Unauthorized Access/DisclosureArchived
7,578individuals
Hacking/IT IncidentUnder investigation
534individuals
Hacking/IT IncidentUnder investigation
3,972individuals
Hacking/IT IncidentArchived
2,311individuals
Hacking/IT IncidentUnder investigation
1,279individuals
Hacking/IT IncidentUnder investigation
75,532individuals
Hacking/IT IncidentUnder investigation
80,061individuals
Hacking/IT IncidentUnder investigation
500individuals
Hacking/IT IncidentUnder investigation
500individuals
Hacking/IT IncidentUnder investigation
1,006individuals
Hacking/IT IncidentUnder investigation
34,574individuals
Hacking/IT IncidentUnder investigation
1,396,519individuals
Hacking/IT IncidentUnder investigation
19,553individuals
Hacking/IT IncidentUnder investigation
22,000individuals
Hacking/IT IncidentUnder investigation
12,000individuals
Hacking/IT IncidentUnder investigation
SC · Jun 3, 2026
Amicus Solutions, Inc. (additional related entities may be impacted, the names of which are available upon request)
Business Associate
1,137individuals
Hacking/IT IncidentUnder investigation
20,608individuals
Hacking/IT IncidentUnder investigation
1,000individuals
Improper DisposalArchived
2,720individuals
Hacking/IT IncidentUnder investigation
1,225individuals
Hacking/IT IncidentArchived
3,070individuals
Unauthorized Access/DisclosureArchived
27,113individuals
Hacking/IT IncidentUnder investigation
1,387individuals
Hacking/IT IncidentUnder investigation
500individuals
Hacking/IT IncidentUnder investigation
353,844individuals
Hacking/IT IncidentUnder investigation
501individuals
Hacking/IT IncidentUnder investigation
14,003individuals
Hacking/IT IncidentUnder investigation
4,060individuals
Hacking/IT IncidentUnder investigation
74,074individuals
Hacking/IT IncidentUnder investigation
6,666individuals
Unauthorized Access/DisclosureArchived
14,636individuals
Hacking/IT IncidentUnder investigation
1,807individuals
Hacking/IT IncidentUnder investigation
1,591individuals
Hacking/IT IncidentUnder investigation
3,086individuals
Unauthorized Access/DisclosureArchived
677individuals
Hacking/IT IncidentArchived
1,628individuals
Hacking/IT IncidentUnder investigation
35,632individuals
Hacking/IT IncidentUnder investigation
5,240individuals
Hacking/IT IncidentUnder investigation
1,080individuals
Hacking/IT IncidentUnder investigation
1,525individuals
Hacking/IT IncidentUnder investigation
38,700individuals
Hacking/IT IncidentUnder investigation
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.