1,349individuals
TheftArchived
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
5,000individuals
Unauthorized Access/DisclosureArchived
6,248individuals
Hacking/IT IncidentArchived
52,076individuals
TheftArchived
603individuals
Unauthorized Access/DisclosureArchived
1,200individuals
Hacking/IT IncidentArchived
24,188individuals
Unauthorized Access/DisclosureArchived
3,000individuals
TheftArchived
42,372individuals
Hacking/IT IncidentArchived
998individuals
Unauthorized Access/DisclosureArchived
552individuals
Unauthorized Access/DisclosureArchived
483,063individuals
LossArchived
91,187individuals
Unauthorized Access/DisclosureArchived
30,972individuals
TheftArchived
700individuals
Unauthorized Access/DisclosureArchived
976individuals
Unauthorized Access/DisclosureArchived
2,300individuals
LossArchived
13,086individuals
TheftArchived
1,854individuals
Improper DisposalArchived
113,528individuals
Improper DisposalArchived
1,950individuals
Unauthorized Access/DisclosureArchived
794individuals
Unauthorized Access/DisclosureArchived
597individuals
Unauthorized Access/DisclosureArchived
10,179individuals
Unauthorized Access/DisclosureArchived
28,209individuals
LossArchived
20,764individuals
Unauthorized Access/DisclosureArchived
1,500individuals
Hacking/IT IncidentArchived
3,000individuals
Hacking/IT IncidentArchived
1,009individuals
Hacking/IT IncidentArchived
1,200individuals
Unauthorized Access/DisclosureArchived
1,457individuals
TheftArchived
8,830individuals
Hacking/IT IncidentArchived
502individuals
Unauthorized Access/DisclosureArchived
29,156individuals
TheftArchived
1,300individuals
TheftArchived
1,359individuals
TheftArchived
6,195individuals
Improper DisposalArchived
509individuals
TheftArchived
975individuals
Unauthorized Access/DisclosureArchived
659individuals
TheftArchived
854individuals
Unauthorized Access/DisclosureArchived
1,708individuals
Unauthorized Access/DisclosureArchived
687individuals
Unauthorized Access/DisclosureArchived
738individuals
Unauthorized Access/DisclosureArchived
561individuals
TheftArchived
14,910individuals
Unauthorized Access/DisclosureArchived
5,327individuals
TheftArchived
500individuals
Hacking/IT IncidentArchived
946individuals
Hacking/IT IncidentArchived
1,872individuals
Unauthorized Access/DisclosureArchived
810individuals
Unauthorized Access/DisclosureArchived
827individuals
Unauthorized Access/DisclosureArchived
2,929individuals
Unauthorized Access/DisclosureArchived
11,000individuals
Unauthorized Access/DisclosureArchived
35,404individuals
Unauthorized Access/DisclosureArchived
1,500individuals
TheftArchived
1,407individuals
Unauthorized Access/DisclosureArchived
1,275individuals
LossArchived
986individuals
TheftArchived
592individuals
Unauthorized Access/DisclosureArchived
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.