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44 disclosed this week · 26,355 on record

Weill Cornell Medicine

Disclosed Feb 23, 2026516 affectedConfirmed

Official notice

The covered entity (CE), Weill Cornell Medicine, reported that an employee inappropriately accessed patients’ protected health information (PHI) without approval or authorization. According to the breach report, the breach affected approximately 516 individuals. The PHI involved demographic and treatment information. The CE notified HHS and the affected individuals. In its mitigation efforts, the CE sanctioned the employee and reviewed its access controls. OCR provided technical assistance to the CE regarding the HIPAA Rules.

What is known

People affected516 (as reported to HHS)
DisclosedFeb 23, 2026
AttackInsider
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

Other breaches at Weill Cornell Medicine

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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