14,000individuals
TheftArchived
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
567individuals
Unauthorized Access/DisclosureArchived
306,789individuals
Hacking/IT IncidentArchived
3,403individuals
Unauthorized Access/DisclosureArchived
8,300individuals
Unauthorized Access/DisclosureArchived
1,300,000individuals
Hacking/IT IncidentArchived
506individuals
TheftArchived
632individuals
Unauthorized Access/DisclosureArchived
1,342individuals
TheftArchived
4,725individuals
TheftArchived
6,166individuals
Unauthorized Access/DisclosureArchived
1,551individuals
TheftArchived
20,512individuals
TheftArchived
981individuals
Hacking/IT IncidentArchived
2,259individuals
TheftArchived
1,000individuals
Unauthorized Access/DisclosureArchived
1,339individuals
LossArchived
3,321individuals
Hacking/IT IncidentArchived
1,138individuals
LossArchived
880individuals
TheftArchived
3,334individuals
Unauthorized Access/DisclosureArchived
864individuals
LossArchived
4,885individuals
Unauthorized Access/DisclosureArchived
90,060individuals
Unauthorized Access/DisclosureArchived
3,000individuals
TheftArchived
880individuals
Hacking/IT IncidentArchived
2,000individuals
Unauthorized Access/DisclosureArchived
24,967individuals
Hacking/IT IncidentArchived
39,000individuals
Hacking/IT IncidentArchived
1,726individuals
Improper DisposalArchived
2,584individuals
LossArchived
500individuals
TheftArchived
1,447individuals
Unauthorized Access/DisclosureArchived
1,787individuals
TheftArchived
12,500individuals
Hacking/IT IncidentArchived
2,984individuals
Unauthorized Access/DisclosureArchived
563individuals
LossArchived
756individuals
Hacking/IT IncidentArchived
874individuals
Unauthorized Access/DisclosureArchived
KY · Apr 9, 2015
International Union of Operating Engineers Local Unions 181, 320 & TVA Health and Welfare Trust Fund
Health Plan
5,440individuals
Hacking/IT IncidentArchived
3,074individuals
Hacking/IT IncidentArchived
838individuals
Unauthorized Access/DisclosureArchived
8,791individuals
Unauthorized Access/DisclosureArchived
873individuals
Unauthorized Access/DisclosureArchived
782individuals
Hacking/IT IncidentArchived
10,946individuals
Hacking/IT IncidentArchived
958individuals
Unauthorized Access/DisclosureArchived
862individuals
Unauthorized Access/DisclosureArchived
PA · Apr 2, 2015
City of Philadelphia Fire Department Emergency Medical Services Unit
Healthcare Provider
81,463individuals
Unauthorized Access/DisclosureArchived
826individuals
TheftArchived
550individuals
Hacking/IT IncidentArchived
845individuals
Unauthorized Access/DisclosureArchived
508individuals
Unauthorized Access/DisclosureArchived
7,038individuals
Hacking/IT IncidentArchived
1,458individuals
Unauthorized Access/DisclosureArchived
500individuals
Hacking/IT IncidentArchived
7,700individuals
TheftArchived
1,688individuals
Hacking/IT IncidentArchived
43,068individuals
Hacking/IT IncidentArchived
IL · Mar 24, 2015
McDermott Will & Emery LLP is the plan sponsor for the McDermott medical plan
Health Plan
880individuals
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.