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47 disclosed this week · 26,367 on record

Illinois Department of Healthcare and Family Services

Disclosed Apr 26, 20188,000 affectedConfirmed

Official notice

The Illinois Department of Healthcare and Family Services (IDHFS), the covered entity (CE), reported that a state employee inadvertently changed the addresses of its clients to the incorrect addresses and subsequently mailed protected health information (PHI) to the wrong recipients. This breach affected approximately 4,968 individuals. The PHI involved included names, dates of birth, phone numbers, financial information, and clinical information. The CE notified HHS, affected individuals, and the media. As a result of this breach, IDHFS implemented additional administrative safeguards to prevent incidents of this nature. OCR obtained assurances that the corrective actions noted above were completed.

What is known

People affected8,000 (as reported to HHS)
DisclosedApr 26, 2018
AttackInsider
Data exposedNamesHealth
SectorInsurance · US
StatusConfirmed

Sources

Notices filed

Other breaches at Illinois Department of Healthcare and Family 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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