Every public data breach

Disclosed this week47On record26,367

47 disclosed this week · 26,367 on record

Northwestern Memorial Hospital

Disclosed Jul 27, 20124,211 affectedConfirmed

Official notice

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What is known

People affected4,211 (as reported to HHS)
DisclosedJul 27, 2012
AttackLost or stolen device
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Official noticeocrportal.hhs.gov
HHS OCR breach report (archive, resolved): Northwestern Memorial Hospital (Healthcare Provider, IL)

Notices filed

TotalJul 27, 2012
HHS archive4,211 people

Other breaches at Northwestern Memorial Hospital

Insider breachInsider exposed names and health records. Reported to the HHS archive.682 affectedHealthcareUSDec 30, 2020
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.

Everything about Northwestern Memorial Hospital