Confirmed breach

Insightin Health data breach

USUnited States · MD · Insightin Health, Inc.

Insightin Health (MD, United States) notified the Oregon Department of Justice, the Texas Attorney General, the California Attorney General and the Washington Attorney General of a data breach on 5 March 2026. It told the states about 1,144,686 Oregon residents; the total can be higher. Exposed: Health insurance details, Health and medical information, Names and Addresses. The breach began on 17 September 2025, 169 days before it was reported.

Status: Confirmed breach
People affected: 1,144,686 Oregon residents (one state’s count; the total can be higher)
Reported: 5 March 2026
Across the state notices: at least 1,299,772 people (Oregon, Texas and Washington: each state counts only its own residents)
Breach began: 17 September 2025
Time to tell: 169 days (the median in California’s notices over the last year: 154 days)

What was exposed

Health insurance details
Health and medical information
Names
Addresses

Before the notice: the ransomware gang Medusa named Insightin Health on its leak site on 4 October 2025, 152 days before this was reported. Matched by the organisation’s name: the notice itself does not say who the attacker was.

What the letter says

We have not read this letter yet.

Got a letter or email about this breach? Check it is real →

Read the letter (PDF), as filed with the California Attorney General.

Sources

Official notices are read by code from the regulator’s own register. More notices to Oregon, Texas, California, Washington. · Corrections and changes

Organisations breached through Insightin Health

3 breaches at Insightin Health’s customers or partners, each named in a source. The Insightin Health breach (2026) →

Wellcare Health Insurance Company of Washington, Inc. (Insightin Health, Inc.)USUnited States · 20 February 2026 843Washington residents
Wellcare Health Insurance Company of Washington, Inc. (Insightin Health, Inc.) Washington Attorney General
Wellcare of Washington, Inc. (Insightin Health, Inc.)USUnited States · 20 February 2026 2.5KWashington residents
Wellcare of Washington, Inc. (Insightin Health, Inc.) Washington Attorney General
Coordinated Care of Washington, Inc. (Insightin Health, Inc.)USUnited States · 20 February 2026 29Washington residents
Coordinated Care of Washington, Inc. (Insightin Health, Inc.) Washington Attorney General

If Insightin Health had your data

Look for Insightin Health, Inc.’s own notice or letter: it should say what of yours was involved. Keep it.
Check your health insurer’s statements for treatment you never had.
Expect scams that use your details: calls, texts or emails pretending to be Insightin Health, Inc., your bank or the police. Never give codes or passwords, never approve a sign-in you did not start, never move money.

More breaches in United States

Every breach in United States →

From the data breach tracker: official notices, breach databases and the news, every fact with its source. Open data (CC BY 4.0) · How the tracker works · Official registers · Corrections and changes · Found a mistake? Tell us and we correct it.