1,647individuals
Hacking/IT IncidentArchived
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
4,521individuals
Unauthorized Access/DisclosureArchived
1,887individuals
Unauthorized Access/DisclosureArchived
515individuals
Unauthorized Access/DisclosureArchived
1,254individuals
TheftArchived
501individuals
Hacking/IT IncidentArchived
1,463individuals
Hacking/IT IncidentArchived
1,303individuals
Hacking/IT IncidentArchived
900individuals
Unauthorized Access/DisclosureArchived
871individuals
TheftArchived
3,882individuals
Hacking/IT IncidentArchived
1,030individuals
Unauthorized Access/DisclosureArchived
500individuals
Hacking/IT IncidentArchived
628individuals
Unauthorized Access/DisclosureArchived
758individuals
TheftArchived
1,805individuals
TheftArchived
1,311individuals
Unauthorized Access/DisclosureArchived
1,263individuals
Unauthorized Access/DisclosureArchived
2,500individuals
Hacking/IT IncidentArchived
276,057individuals
Hacking/IT IncidentArchived
13,443individuals
Hacking/IT IncidentArchived
1,101individuals
Unauthorized Access/DisclosureArchived
16,000individuals
Hacking/IT IncidentArchived
538individuals
TheftArchived
614individuals
Unauthorized Access/DisclosureArchived
IL · Jun 8, 2018
Massac County Surgery Center dba Orthopaedic Institute Surgery Center
Healthcare Provider
2,000individuals
Hacking/IT IncidentArchived
7,582individuals
Unauthorized Access/DisclosureArchived
1,144individuals
Unauthorized Access/DisclosureArchived
3,731individuals
Hacking/IT IncidentArchived
1,618individuals
Hacking/IT IncidentArchived
607individuals
TheftArchived
1,951individuals
Hacking/IT IncidentArchived
597individuals
Unauthorized Access/DisclosureArchived
55,947individuals
Unauthorized Access/DisclosureArchived
1,266individuals
Unauthorized Access/DisclosureArchived
1,357individuals
Unauthorized Access/DisclosureArchived
10,396individuals
Hacking/IT IncidentArchived
42,625individuals
Hacking/IT IncidentArchived
4,059individuals
Unauthorized Access/DisclosureArchived
600individuals
Hacking/IT IncidentArchived
1,711individuals
Hacking/IT IncidentArchived
566,236individuals
Hacking/IT IncidentArchived
5,485individuals
Unauthorized Access/DisclosureArchived
AZ · May 21, 2018
Echo Canyon Healthcare, Incorporated dba Heritage Court Post Acute of Scottsdale
Healthcare Provider
1,765individuals
TheftArchived
10,000individuals
Hacking/IT IncidentArchived
6,546individuals
Hacking/IT IncidentArchived
42,200individuals
Hacking/IT IncidentArchived
2,793individuals
Unauthorized Access/DisclosureArchived
607individuals
Unauthorized Access/DisclosureArchived
538,127individuals
Hacking/IT IncidentArchived
508individuals
Unauthorized Access/DisclosureArchived
2,300individuals
Unauthorized Access/DisclosureArchived
1,733individuals
Hacking/IT IncidentArchived
NY · May 11, 2018
New York City Human Resources Administration/Department of Social Services
Health Plan
2,078individuals
Unauthorized Access/DisclosureArchived
2,174individuals
Unauthorized Access/DisclosureArchived
1,764individuals
Unauthorized Access/DisclosureArchived
2,098individuals
Unauthorized Access/DisclosureArchived
2,182individuals
Hacking/IT IncidentArchived
3,758individuals
Unauthorized Access/DisclosureArchived
8,300individuals
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.