Confirmed breach

1Life Healthcare data breach

USUnited States · CA · 1Life Healthcare, Inc.

1Life Healthcare (CA, United States) notified the Texas Attorney General and the Washington Attorney General of a data breach on 3 July 2026. It told the states about 16,884 Washington residents; the total can be higher. Exposed: Social Security numbers, Health insurance details, Health and medical information, Dates of birth, Names and Addresses. The breach began on 8 June 2026, 25 days before it was reported.

Status: Confirmed breach
People affected: 16,884 Washington residents (one state’s count; the total can be higher)
Reported: 3 July 2026
Across the state notices: at least 26,925 people (Texas and Washington: each state counts only its own residents)
Breach began: 8 June 2026
Time to tell: 25 days (the median in California’s notices over the last year: 154 days)

What was exposed

Social Security numbers
Health insurance details
Health and medical information
Dates of birth
Names
Addresses

What changed since it was first reported

29 October 2026 Confirmed breach, 16,884 Washington residents (Washington Attorney General)

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 Washington Attorney General.

Sources

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

If 1Life Healthcare had your data

Look for 1Life Healthcare, Inc.’s own notice or letter: it should say what of yours was involved. Keep it.
An ID number cannot be changed, so lock it: a credit freeze or fraud alert in the US, a credit warning (kreditadvarsel) on borger.dk in Denmark, Cifas protective registration in the UK.
Check your health insurer’s statements for treatment you never had.
Expect scams that use your details: calls, texts or emails pretending to be 1Life Healthcare, 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.