14,881individuals
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
4,804individuals
Unauthorized Access/DisclosureArchived
2,157individuals
Unauthorized Access/DisclosureArchived
7,478individuals
Unauthorized Access/DisclosureArchived
1,348individuals
Unauthorized Access/DisclosureArchived
525individuals
Unauthorized Access/DisclosureArchived
2,993individuals
Unauthorized Access/DisclosureArchived
12,415individuals
Unauthorized Access/DisclosureArchived
6,688individuals
Unauthorized Access/DisclosureArchived
9,678individuals
Unauthorized Access/DisclosureArchived
4,789individuals
Unauthorized Access/DisclosureArchived
52,327individuals
Hacking/IT IncidentArchived
584individuals
Unauthorized Access/DisclosureArchived
674individuals
Unauthorized Access/DisclosureArchived
858individuals
Hacking/IT IncidentArchived
1,655individuals
Unauthorized Access/DisclosureArchived
612individuals
Unauthorized Access/DisclosureArchived
4,211individuals
LossArchived
7,000individuals
Hacking/IT IncidentArchived
944individuals
Unauthorized Access/DisclosureArchived
1,500individuals
Hacking/IT IncidentArchived
11,754individuals
Improper DisposalArchived
1,000individuals
TheftArchived
15,975individuals
Hacking/IT IncidentArchived
5,400individuals
Hacking/IT IncidentArchived
11,100individuals
Hacking/IT IncidentArchived
903individuals
Unauthorized Access/DisclosureArchived
15,982individuals
Hacking/IT IncidentArchived
3,500individuals
Unauthorized Access/DisclosureArchived
850individuals
Hacking/IT IncidentArchived
2,000individuals
Unauthorized Access/DisclosureArchived
68,039individuals
Hacking/IT IncidentArchived
622individuals
Unauthorized Access/DisclosureArchived
19,557individuals
Hacking/IT IncidentArchived
756individuals
Unauthorized Access/DisclosureArchived
564individuals
Unauthorized Access/DisclosureArchived
48,000individuals
Hacking/IT IncidentArchived
9,160individuals
Hacking/IT IncidentArchived
823individuals
Hacking/IT IncidentArchived
514individuals
Hacking/IT IncidentArchived
912individuals
Hacking/IT IncidentArchived
GA · Sep 27, 2019
Cancer Treatment Centers of America (CTCA) at Southeastern Regional Medical Center
Healthcare Provider
3,290individuals
Hacking/IT IncidentArchived
500individuals
Hacking/IT IncidentArchived
990individuals
Hacking/IT IncidentArchived
527,310individuals
Hacking/IT IncidentArchived
525individuals
Unauthorized Access/DisclosureArchived
15,000individuals
LossArchived
6,300individuals
Unauthorized Access/DisclosureArchived
1,260individuals
Unauthorized Access/DisclosureArchived
5,835individuals
Hacking/IT IncidentArchived
55,637individuals
Hacking/IT IncidentArchived
6,489individuals
Unauthorized Access/DisclosureArchived
589individuals
Hacking/IT IncidentArchived
State not listed · Sep 16, 2019
Intramural Practice Plan - Medical Sciences Campus - University of Puerto Rico
Healthcare Provider
439,753individuals
Hacking/IT IncidentArchived
4,674individuals
Hacking/IT IncidentArchived
2,112individuals
Hacking/IT IncidentArchived
46,353individuals
Hacking/IT IncidentArchived
22,000individuals
Hacking/IT IncidentArchived
27,000individuals
Hacking/IT IncidentArchived
1,498individuals
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.