Every public data breach

44 disclosed this week · 26,355 on record

Cook County Health

Disclosed Jan 24, 20202,713 affectedConfirmed

Official notice

Cook County Health (CCH), the covered entity (CE), reported that the protected health information (PHI) of 2,713 individuals was impermissibly sent to its mailing vendor. The PHI involved included names, addresses, and email addresses. The CE notified HHS, affected individuals, and the media. In its mitigation efforts, the CE revised its policies and procedures and trained its staff on privacy protections. OCR obtained assurances that CCH implemented the corrective actions noted.

What is known

People affected2,713 (as reported to HHS)
DisclosedJan 24, 2020
AttackInsider
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

Other breaches at Cook County Health

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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