1,008individuals
OtherArchived
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
500individuals
Improper DisposalArchived
2,387individuals
Unauthorized Access/DisclosureArchived
5,696individuals
TheftArchived
15,265individuals
Unauthorized Access/DisclosureArchived
1,845individuals
LossArchived
2,308individuals
Hacking/IT IncidentArchived
1,253individuals
Hacking/IT IncidentArchived
1,981individuals
Hacking/IT IncidentArchived
1,361individuals
Hacking/IT IncidentArchived
629individuals
TheftArchived
2,742individuals
Hacking/IT IncidentArchived
862individuals
Unauthorized Access/DisclosureArchived
2,200individuals
Unauthorized Access/DisclosureArchived
9,800individuals
Hacking/IT IncidentArchived
MA · Apr 24, 2014
Tufts Associated Health Maintenance Organization, Inc. and Tufts Insurance Company
Health Plan
8,830individuals
TheftArchived
4,830individuals
Unauthorized Access/DisclosureArchived
2,365individuals
Theft, Unauthorized Access/DisclosureArchived
12,286individuals
Hacking/IT IncidentArchived
6,900individuals
TheftArchived
617individuals
LossArchived
1,400individuals
Unauthorized Access/DisclosureArchived
GA · Apr 17, 2014
Courier Express/Atlanta, Courier Express/Charlotte & Courier Express US, Inc.
Business Associate
2,523individuals
Theft, Unauthorized Access/DisclosureArchived
10,766individuals
Hacking/IT Incident, Unauthorized Access/DisclosureArchived
3,750individuals
TheftArchived
46,473individuals
TheftArchived
5,000individuals
Unauthorized Access/DisclosureArchived
7,911individuals
TheftArchived
793individuals
LossArchived
1,144individuals
Unauthorized Access/DisclosureArchived
2,546individuals
Unauthorized Access/DisclosureArchived
75,026individuals
TheftArchived
527individuals
LossArchived
979individuals
LossArchived
580individuals
Unauthorized Access/DisclosureArchived
836individuals
OtherArchived
17,776individuals
TheftArchived
2,595individuals
TheftArchived
5,178individuals
Hacking/IT IncidentArchived
5,795individuals
TheftArchived
214,000individuals
Unauthorized Access/DisclosureArchived
1,000individuals
Unauthorized Access/DisclosureArchived
1,256individuals
Hacking/IT IncidentArchived
580individuals
Unauthorized Access/DisclosureArchived
643individuals
Unauthorized Access/DisclosureArchived
8,300individuals
OtherArchived
2,992individuals
OtherArchived
5,499individuals
TheftArchived
5,534individuals
Loss, OtherArchived
657individuals
Unauthorized Access/DisclosureArchived
1,000individuals
TheftArchived
586individuals
LossArchived
1,079individuals
TheftArchived
543individuals
LossArchived
715individuals
Loss, Unauthorized Access/DisclosureArchived
1,699individuals
Loss, Unauthorized Access/DisclosureArchived
796individuals
Loss, Unauthorized Access/DisclosureArchived
27,839individuals
Unauthorized Access/DisclosureArchived
55,900individuals
TheftArchived
1,000individuals
OtherArchived
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.