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44 disclosed this week · 26,355 on record

Midwest Medical Center

Disclosed May 10, 20198,010 affectedConfirmed

Official notice

Midwest Medical Center (MMC), the covered entity (CE), reported that an employee of its business associate (BA), OS, Inc., (OS), was the victim of an email phishing scheme that affected the protected health information (PHI) of 8,010 individuals. The PHI involved included names, addresses, dates of birth, medical record numbers, and treatment information. MMC notified HHS, the media, and posted substitute notice on its website. MMC and OS notified affected individuals and offered complimentary fraud consultation and theft restoration services. The BA also trained its staff on the proper methods for identifying fraudulent email communications.

What is known

People affected8,010 (as reported to HHS)
DisclosedMay 10, 2019
AttackHacking
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

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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