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

RI · Mar 8, 2017

CVS Health

Healthcare Provider

724individuals

TheftArchived

CA · Mar 6, 2017

Tarleton Medical

Healthcare Provider

3,929individuals

Hacking/IT IncidentArchived

IN · Mar 2, 2017

VisionQuest Eyecare

Healthcare Provider

85,995individuals

Hacking/IT IncidentArchived

GA · Feb 21, 2017

Emory Healthcare

Healthcare Provider

79,930individuals

Hacking/IT IncidentArchived

NY · Feb 17, 2017

Emblem Health - GHI

Health Plan

703individuals

Unauthorized Access/DisclosureArchived

IL · Feb 3, 2017

Walgreen Co.

Healthcare Provider

4,500individuals

Unauthorized Access/DisclosureArchived

IN · Jan 27, 2017

Shiel Sexton

Health Plan

710individuals

Unauthorized Access/DisclosureArchived

OR · Jan 20, 2017

Multnomah County

Healthcare Provider

1,700individuals

Unauthorized Access/DisclosureArchived

OH · Jan 19, 2017

TriHealth, Inc.

Healthcare Provider

1,126individuals

Unauthorized Access/DisclosureArchived

VA · Jan 16, 2017

Sentara Healthcare

Healthcare Provider

5,454individuals

Hacking/IT IncidentArchived

WI · Jan 10, 2017

SSM Dean Medical Group

Healthcare Provider

4,800individuals

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.