Every public data breach

44 disclosed this week · 26,355 on record

University of Chicago Medical Center

Disclosed May 24, 202410,332 affectedConfirmed

Official notice

The covered entity (CE), University of Chicago Medical Center, reported that multiple employees were the subjects of an email phishing attack that affected the protected health information (PHI) of 10,332 individuals. The PHI involved included names, dates of birth, Social Security numbers, passport numbers, drivers’ license or state identification numbers, financial information, diagnoses, medications, and health insurance and other treatment information. The CE notified HHS, the affected individuals, the media, and provided substitute notice. In response to the breach, the CE provided complimentary credit monitoring services and implemented additional administrative, technical, and security safeguards. Staff were retrained on email security.

What is known

People affected10,332 (as reported by the organization)
DisclosedMay 24, 2024
HappenedJan 4, 2024
AttackHacking
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

Other breaches at University of Chicago Medical Center

History of this record
attack2026-09-25
unknown to hackingby backfillSource
data_types2026-09-25
[] to ["names","health"]by backfillSource
summary2026-09-25
empty to The covered entity (CE), University of Chicago Medical Center, reported that multiple employees were the subjects of an email phishing attack that affected the protected health information (PHI) of 10,332 individuals. The PHI involved incluby backfillSource
Added2026-09-25
First recordedby backfillSource

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

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