1,835individuals
Unauthorized Access/DisclosureArchived
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
363,617individuals
Hacking/IT IncidentArchived
927individuals
Hacking/IT IncidentArchived
1,500individuals
Hacking/IT IncidentArchived
3,537individuals
Hacking/IT IncidentArchived
1,751individuals
Hacking/IT IncidentArchived
320,000individuals
Hacking/IT IncidentArchived
533individuals
Unauthorized Access/DisclosureArchived
998individuals
Unauthorized Access/DisclosureArchived
2,770individuals
TheftArchived
874individuals
Unauthorized Access/DisclosureArchived
9,700individuals
Hacking/IT IncidentArchived
2,000individuals
TheftArchived
95,339individuals
Hacking/IT IncidentArchived
3,259individuals
Hacking/IT IncidentArchived
2,890individuals
Hacking/IT IncidentArchived
2,158individuals
Hacking/IT IncidentArchived
15,450individuals
Hacking/IT IncidentArchived
13,905individuals
Hacking/IT IncidentArchived
560individuals
Hacking/IT IncidentArchived
550individuals
Hacking/IT IncidentArchived
37,000individuals
Hacking/IT IncidentArchived
1,982individuals
Hacking/IT IncidentArchived
634individuals
Hacking/IT IncidentArchived
2,168individuals
Unauthorized Access/DisclosureArchived
9,900individuals
Hacking/IT IncidentArchived
19,807individuals
Unauthorized Access/DisclosureArchived
1,653individuals
Hacking/IT IncidentArchived
684individuals
Unauthorized Access/DisclosureArchived
604individuals
LossArchived
1,293individuals
Unauthorized Access/DisclosureArchived
TX · Aug 19, 2019
Wilson County Memorial Hospital District dba Connally Memorial Medical Center
Healthcare Provider
7,358individuals
TheftArchived
13,000individuals
Hacking/IT IncidentArchived
2,943individuals
Hacking/IT IncidentArchived
5,466individuals
Hacking/IT IncidentArchived
5,030individuals
Hacking/IT IncidentArchived
6,641individuals
Hacking/IT IncidentArchived
3,030individuals
Hacking/IT IncidentArchived
5,866individuals
Hacking/IT IncidentArchived
1,182individuals
Unauthorized Access/DisclosureArchived
1,938individuals
Hacking/IT IncidentArchived
88,399individuals
Hacking/IT IncidentArchived
1,335individuals
Unauthorized Access/DisclosureArchived
1,269individuals
Unauthorized Access/DisclosureArchived
773individuals
Hacking/IT IncidentArchived
844individuals
Hacking/IT IncidentArchived
10,292individuals
TheftArchived
17,380individuals
Hacking/IT IncidentArchived
3,517individuals
Unauthorized Access/DisclosureArchived
10,710individuals
Hacking/IT IncidentArchived
27,004individuals
LossArchived
15,113individuals
Hacking/IT IncidentArchived
4,738individuals
LossArchived
7,855individuals
Unauthorized Access/DisclosureArchived
500individuals
Unauthorized Access/DisclosureArchived
1,041individuals
Unauthorized Access/DisclosureArchived
4,340individuals
Hacking/IT IncidentArchived
651individuals
Hacking/IT IncidentArchived
10,650individuals
Hacking/IT IncidentArchived
29,644individuals
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.