1,452individuals
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
4,814individuals
Hacking/IT IncidentArchived
39,912individuals
Hacking/IT IncidentArchived
20,151individuals
Hacking/IT IncidentArchived
985individuals
Hacking/IT IncidentArchived
1,295individuals
Hacking/IT IncidentArchived
4,492individuals
Unauthorized Access/DisclosureArchived
5,944individuals
Hacking/IT IncidentArchived
549individuals
TheftArchived
616individuals
TheftArchived
856individuals
TheftArchived
545individuals
TheftArchived
2,283individuals
LossArchived
1,639individuals
Hacking/IT IncidentArchived
3,500individuals
Hacking/IT IncidentArchived
69,000individuals
Hacking/IT IncidentArchived
36,739individuals
Hacking/IT IncidentArchived
1,041individuals
Hacking/IT IncidentArchived
882individuals
Unauthorized Access/DisclosureArchived
1,723,375individuals
Hacking/IT IncidentArchived
1,064individuals
Unauthorized Access/DisclosureArchived
2,817individuals
Unauthorized Access/DisclosureArchived
696individuals
Unauthorized Access/DisclosureArchived
566individuals
Hacking/IT IncidentArchived
3,200individuals
Unauthorized Access/DisclosureArchived
20,963individuals
Hacking/IT IncidentArchived
11,187individuals
Unauthorized Access/DisclosureArchived
299,507individuals
Hacking/IT IncidentArchived
261,054individuals
Hacking/IT IncidentArchived
PA · Dec 3, 2020
Regional Women's Health Group, LLC d/b/a Sincera Reproductive Medicine
Healthcare Provider
37,989individuals
Hacking/IT IncidentArchived
774individuals
Unauthorized Access/DisclosureArchived
1,580individuals
TheftArchived
670individuals
Unauthorized Access/DisclosureArchived
685individuals
Hacking/IT IncidentArchived
2,255individuals
Unauthorized Access/DisclosureArchived
60,545individuals
Hacking/IT IncidentArchived
878,550individuals
Hacking/IT IncidentArchived
KY · Nov 24, 2020
Bardstown Primary Care dba: Physicians to Children & Adolescents
Healthcare Provider
859individuals
Unauthorized Access/DisclosureArchived
1,030individuals
Unauthorized Access/DisclosureArchived
1,925individuals
Unauthorized Access/DisclosureArchived
1,127individuals
Hacking/IT IncidentArchived
500individuals
Unauthorized Access/DisclosureArchived
1,462individuals
Hacking/IT IncidentArchived
3,557individuals
Unauthorized Access/DisclosureArchived
NE · Nov 23, 2020
The Nebraska Medical Center and University of Nebraska Medical Center, Affiliated Covered Entities
Healthcare Provider
216,472individuals
Hacking/IT IncidentArchived
514individuals
Unauthorized Access/DisclosureArchived
78,006individuals
Hacking/IT IncidentArchived
11,315individuals
Hacking/IT IncidentArchived
8,027individuals
Unauthorized Access/DisclosureArchived
1,419individuals
Unauthorized Access/DisclosureArchived
529individuals
LossArchived
5,769individuals
Hacking/IT IncidentArchived
3,076individuals
Hacking/IT IncidentArchived
58,005individuals
Hacking/IT IncidentArchived
142,982individuals
Hacking/IT IncidentArchived
524individuals
TheftArchived
295,617individuals
Hacking/IT IncidentArchived
1,693individuals
TheftArchived
685individuals
Hacking/IT IncidentArchived
92,795individuals
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.