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Cheyenne Regional Medical Center

Disclosed Dec 10, 20196 years ago17,549 affectedConfirmed

Official notice

The covered entity (CE), Cheyenne Regional Medical Center, reported that several employees were the victims of an email phishing scheme that affected the electronic protected health information (ePHI) of 17,549 individuals. The ePHI involved included names, addresses, Social Security numbers, claims and financial information, diagnoses, medications prescribed, and other treatment information. The CE notified HHS, affected individuals, and the media. In its mitigation efforts, the CE implemented additional administrative, technical, and security safeguards to better protect its ePHI. In addition, the CE retrained its workforce members on the proper methods of identifying fraudulent email communications. OCR obtained assurances that the CE implemented the corrective actions noted.

What is known

People affected17,549 (as reported to HHS)
DisclosedDec 10, 2019
AttackHacking
Data exposedNames, Health
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

WhereFiledPeople
HHS archivetotalDec 10, 201917,549

Other breaches at Cheyenne Regional Medical Center

BreachAffected
Disclosed Jul 5, 2022Jul 5, 20224 years agoInsider1,652
History of this record
  • 2026-09-25 · added · backfill source

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

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