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44 disclosed this week · 26,355 on record

Colorado Department of Human Services

Disclosed Dec 27, 2017639 affectedConfirmed

Official notice

On November 1, 2017, an employee at the Colorado Mental Health Institute in Pueblo mistyped a website address into her computer browser and accessed an imposter site that downloaded malware to her computer. Her subsequent attempts to fix the problem allowed the malware company to access the protected health information (PHI) of 639 individuals, including demographic, clinical, and financial information. The CE provided breach notification to HHS, affected individuals, and the media. Following the breach, the CE conducted a forensic investigation, sanctioned the responsible employee, and augmented existing employee training with additional information regarding malware attacks and social engineering. OCR obtained assurances that the CE implemented the listed corrective actions.

What is known

People affected639 (as reported to HHS)
DisclosedDec 27, 2017
AttackHacking
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

Other breaches at Colorado Department of Human Services

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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