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

MI · Jan 24, 2020

Beaumont Health

Healthcare Provider

1,182individuals

Unauthorized Access/DisclosureArchived

IL · Jan 24, 2020

Cook County Health

Healthcare Provider

2,713individuals

Unauthorized Access/DisclosureArchived

FL · Jan 22, 2020

REVA, INC.

Healthcare Provider

1,000individuals

Hacking/IT IncidentArchived

CA · Jan 10, 2020

PIH Health

Healthcare Provider

199,548individuals

Hacking/IT IncidentArchived

ME · Jan 8, 2020

InterMed, PA

Healthcare Provider

33,000individuals

Hacking/IT IncidentArchived

AL · Jan 6, 2020

CAH Holdings, Inc.

Business Associate

1,158individuals

Hacking/IT IncidentArchived

TN · Dec 31, 2019

SEES Group, LLC

Healthcare Provider

13,000individuals

Hacking/IT IncidentArchived

AK · Dec 26, 2019

btyDENTAL

Healthcare Provider

2,008individuals

Hacking/IT IncidentArchived

GA · Dec 16, 2019

AFLAC

Health Plan

1,601individuals

Unauthorized Access/DisclosureArchived

IL · Dec 13, 2019

Sinai Health System

Healthcare Provider

12,578individuals

Hacking/IT IncidentArchived

GA · Dec 9, 2019

Anwan Wellness LLC

Healthcare Provider

530individuals

Unauthorized Access/DisclosureArchived

OH · Dec 6, 2019

Beech Brook

Healthcare Provider

2,636individuals

Hacking/IT IncidentArchived

NY · Dec 6, 2019

Equinox, Inc.

Healthcare Provider

1,021individuals

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.