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47 disclosed this week · 26,367 on record

Western Montana Clinic

Disclosed Aug 1, 20258,255 affectedConfirmed

Official notice

The covered entity (CE), Western Montana Clinic reported that employees were the targets of an email phishing scheme that affected the protected health information (PHI) of 8,255 individuals. The PHI involved included clinical and demographic information. The CE notified HHS, affected individuals, the media, and posted substitute notice on its website. In response to the breach, the CE implemented additional administrative, technical, and security safeguards, and retrained workforce members to better protect its PHI..

What is known

People affected8,255 (as reported to HHS)
DisclosedAug 1, 2025
AttackHacking
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

Other breaches at Western Montana Clinic

History of this record
Added2026-09-25
First recordedby backfillSource

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

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