1,283individuals
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
3,386individuals
Hacking/IT IncidentUnder investigation
4,537individuals
Hacking/IT IncidentUnder investigation
17,435individuals
Hacking/IT IncidentUnder investigation
3,280individuals
Hacking/IT IncidentUnder investigation
501individuals
Hacking/IT IncidentUnder investigation
1,464individuals
Hacking/IT IncidentUnder investigation
4,553individuals
Hacking/IT IncidentArchived
67,000individuals
Hacking/IT IncidentArchived
8,181individuals
Hacking/IT IncidentUnder investigation
501individuals
Hacking/IT IncidentUnder investigation
501individuals
Hacking/IT IncidentUnder investigation
500individuals
Hacking/IT IncidentUnder investigation
1,530individuals
Hacking/IT IncidentUnder investigation
1,489individuals
Unauthorized Access/DisclosureArchived
1,526individuals
Unauthorized Access/DisclosureArchived
25,086individuals
Hacking/IT IncidentUnder investigation
2,545individuals
Hacking/IT IncidentUnder investigation
399,086individuals
Unauthorized Access/DisclosureArchived
501individuals
Hacking/IT IncidentUnder investigation
20,040individuals
Hacking/IT IncidentUnder investigation
653individuals
Unauthorized Access/DisclosureUnder investigation
14,324individuals
Hacking/IT IncidentUnder investigation
500individuals
Hacking/IT IncidentUnder investigation
1,408individuals
Unauthorized Access/DisclosureUnder investigation
501individuals
Hacking/IT IncidentUnder investigation
11,927individuals
Unauthorized Access/DisclosureUnder investigation
5,902individuals
Hacking/IT IncidentUnder investigation
5,427individuals
Unauthorized Access/DisclosureUnder investigation
71,702individuals
Hacking/IT IncidentUnder investigation
19,851individuals
Hacking/IT IncidentUnder investigation
3,000individuals
Unauthorized Access/DisclosureArchived
1,601individuals
Unauthorized Access/DisclosureArchived
553individuals
Hacking/IT IncidentUnder investigation
500individuals
Hacking/IT IncidentUnder investigation
1,215individuals
Hacking/IT IncidentUnder investigation
5,321individuals
Hacking/IT IncidentUnder investigation
501individuals
Hacking/IT IncidentUnder investigation
41,000individuals
Hacking/IT IncidentArchived
45,853individuals
Hacking/IT IncidentUnder investigation
51,352individuals
Hacking/IT IncidentUnder investigation
ND · Aug 21, 2026
North Dakota Department of Health and Human Services, Developmental Disabilities Section
Healthcare Provider
1,750individuals
Hacking/IT IncidentUnder investigation
282,075individuals
Hacking/IT IncidentUnder investigation
3,831individuals
Unauthorized Access/DisclosureArchived
5,194individuals
Hacking/IT IncidentUnder investigation
11,349individuals
Hacking/IT IncidentArchived
4,649individuals
Hacking/IT IncidentUnder investigation
5,785individuals
Hacking/IT IncidentUnder investigation
4,100individuals
Hacking/IT IncidentUnder investigation
4,115,802individuals
Hacking/IT IncidentUnder investigation
2,810,878individuals
Hacking/IT IncidentUnder investigation
5,000individuals
Hacking/IT IncidentUnder investigation
2,009individuals
Hacking/IT IncidentUnder investigation
108,487individuals
Unauthorized Access/DisclosureArchived
5,378individuals
Hacking/IT IncidentUnder investigation
500individuals
Hacking/IT IncidentUnder investigation
4,216individuals
Unauthorized Access/DisclosureUnder investigation
99,714individuals
Hacking/IT IncidentUnder investigation
808individuals
Hacking/IT IncidentUnder investigation
501individuals
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.