Every public data breach

Disclosed this week47On record26,367

47 disclosed this week · 26,367 on record

One Medical Group

Disclosed Jul 17, 2026153,174 affectedConfirmed

Official notice

What is known

People affected153,174 (as reported to HHS)
DisclosedJul 17, 2026
AttackHacking
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Official noticeocrportal.hhs.gov
HHS OCR breach report: One Medical Group (Healthcare Provider, CA)

Notices filed

TotalJul 17
HHS OCR153,174 people
History of this record
Added2026-09-25
First recordedby backfillSource

First seen 2026-09-25 (HHS OCR), confirmed by HHS OCR. Record counts are as reported. Not legal advice.

Everything about One Medical Group