IT

Confirmed breach

iRhythm Technologies data breach

USUnited States · iRhythm Technologies Inc.

iRhythm Technologies (United States) notified the California Attorney General, the Washington Attorney General, the Oregon Department of Justice and the Texas Attorney General of a data breach on 6 October 2026. It told the states about 220,745 Washington residents; the total can be higher. Exposed: Health insurance details, Health and medical information, Dates of birth, Names and Addresses. The breach began on 3 June 2026, 125 days before it was reported.

Status

Confirmed breach

People affected

220,745 Washington residents (one state’s count; the total can be higher)

Reported

6 October 2026

Breach began

3 June 2026

Time to tell

125 days

What was exposed

• Health insurance details
• Health and medical information
• Dates of birth
• Names
• Addresses

Sources

• Official noticeCalifornia Attorney General
• Official noticeWashington Attorney General
• Official noticeOregon Department of Justice
• Official noticeTexas Attorney General

If iRhythm Technologies had your data

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

• Spot the scams that use leaked data →
• What to do after a data breach →

Email me if iRhythm Technologies has another breach

Alert me

One email to confirm first. We use your address only for this alert, and one click deletes it.

More breaches in United States

1. JH Johns Hopkins Bayview Medical CenterUSUnited States · MD · 27 October 2026 Health and medical informationFinancial account and card detailsAdmission dates+3 3.1Kpatients
2. MU Monmouth UniversityUSUnited States · NJ · 26 October 2026 Social Security numbersGovernment ID numbersHealth and medical information+2 346Vermont residents
3. FE Frontline EducationUSUnited States · 26 October 2026 Social Security numbers 3KVermont residents
4. U USForexUSUnited States · 26 October 2026 –not reported
5. AO Alpha Omega Alpha Honor Medical SocietyUSUnited States · 26 October 2026 Financial account and card details 12Vermont residents

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 · Found a mistake? Tell us and we correct it.