Sierra Vista Hospital & Clinics

Disclosed Oct 6, 202575,054 affectedConfirmed

What is known

People affected	75,054 (as reported to HHS)
Disclosed	Oct 6, 2025
Discovered	Aug 13, 2025
Happened	Jan 14, 2025
Attack	Hacking
Data exposed	NamesHealthSocial Security numbersInsuranceDates of birthAddresses
Sector	Healthcare · US
Status	Confirmed

History of this record

data_types2026-09-25

["names","health"] to ["names","health","ssn","insurance","dob","addresses"]by backfillSource

discovered2026-09-25

empty to 2025-08-13by backfillSource

occurred2026-09-25

empty to 2025-01-14by backfillSource

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.