Every public data breach

44 disclosed this week · 26,355 on record

Northwestern Health Sciences University

Disclosed May 21, 20193,499 affectedConfirmed

Official notice

The covered entity (CE), Northwestern Health Sciences University (NHSU), reported that several employees were the victims of an email phishing attack. This breach affected 1,198 individuals and the protected health information (PHI) involved included names, Social Security numbers, drivers’ license numbers, passport information, diagnostic information, treatment information, medications prescribed, and health insurance information. The CE notified HHS, affected individuals, the media, and offered complimentary credit monitoring and identity theft services to all affected individuals. In addition, the CE implemented additional administrative, technical, and security safeguards and retrained its staff on the proper methods of identifying fraudulent email communications. OCR obtained assurances that the CE implemented the corrective actions noted.

What is known

People affected3,499 (as reported by the organization)
DisclosedMay 21, 2019
HappenedOct 16, 2018
AttackHacking
Data exposedNamesSocial Security numbersHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

History of this record
attack2026-09-25
unknown to hackingby backfillSource
data_types2026-09-25
["names","ssn"] to ["names","ssn","health"]by backfillSource
summary2026-09-25
empty to The covered entity (CE), Northwestern Health Sciences University (NHSU), reported that several employees were the victims of an email phishing attack. This breach affected 1,198 individuals and the protected health information (PHI) involveby backfillSource
data_types2026-09-25
[] to ["names","ssn"]by 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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