820individuals
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
23,104individuals
Hacking/IT IncidentArchived
166,601individuals
Hacking/IT IncidentArchived
3,901individuals
Hacking/IT IncidentArchived
46,673individuals
TheftArchived
54,000individuals
Hacking/IT IncidentArchived
85,282individuals
Hacking/IT IncidentArchived
2,000individuals
Hacking/IT IncidentArchived
317,863individuals
Hacking/IT IncidentArchived
502,869individuals
Hacking/IT IncidentArchived
12,877individuals
Hacking/IT IncidentArchived
312,000individuals
Hacking/IT IncidentArchived
146,028individuals
Hacking/IT IncidentArchived
56,427individuals
Hacking/IT IncidentArchived
2,803individuals
Hacking/IT IncidentArchived
CA · Mar 21, 2022
Livingston Memorial VNA Health Corporation and its affiliates Livingston Memorial Visiting Nurse Association and Livingston CareGivers
Healthcare Provider
34,775individuals
Hacking/IT IncidentArchived
190,209individuals
Hacking/IT IncidentArchived
21,826individuals
Hacking/IT IncidentArchived
43,071individuals
Hacking/IT IncidentArchived
244,174individuals
Hacking/IT IncidentArchived
3,912individuals
Hacking/IT IncidentArchived
28,725individuals
Hacking/IT IncidentArchived
188,236individuals
Hacking/IT IncidentArchived
4,002individuals
Hacking/IT IncidentArchived
1,541individuals
Hacking/IT IncidentArchived
2,733individuals
Hacking/IT IncidentArchived
17,578individuals
Hacking/IT IncidentArchived
67,147individuals
Hacking/IT IncidentArchived
85,635individuals
Hacking/IT IncidentArchived
6,123individuals
Hacking/IT IncidentArchived
13,156individuals
Hacking/IT IncidentArchived
14,203individuals
Hacking/IT IncidentArchived
1,955individuals
Unauthorized Access/DisclosureArchived
810individuals
Unauthorized Access/DisclosureArchived
92,453individuals
Hacking/IT IncidentArchived
227,953individuals
Hacking/IT IncidentArchived
1,682individuals
Unauthorized Access/DisclosureArchived
83,705individuals
Hacking/IT IncidentArchived
500individuals
Hacking/IT IncidentArchived
86,379individuals
Hacking/IT IncidentArchived
1,494individuals
Hacking/IT IncidentArchived
4,750individuals
Hacking/IT IncidentArchived
287,652individuals
Hacking/IT IncidentArchived
339,471individuals
Hacking/IT IncidentArchived
2,921individuals
Hacking/IT IncidentArchived
10,324individuals
Hacking/IT IncidentArchived
864individuals
Hacking/IT IncidentArchived
492,861individuals
Hacking/IT IncidentArchived
4,270individuals
Hacking/IT IncidentArchived
25,745individuals
Hacking/IT IncidentArchived
52,500individuals
Hacking/IT IncidentArchived
3,987individuals
Hacking/IT IncidentArchived
52,632individuals
Hacking/IT IncidentArchived
228,000individuals
Hacking/IT IncidentArchived
4,500individuals
LossArchived
10,291individuals
Unauthorized Access/DisclosureArchived
12,230individuals
Hacking/IT IncidentArchived
197,588individuals
Hacking/IT IncidentArchived
823individuals
Hacking/IT IncidentArchived
10,467individuals
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.