NewYork-Presbyterian Hospital security incident history
Hacking, data breaches and other security incidents involving NewYork-Presbyterian Hospital, with related coverage.
Weill Cornell Medicine notifies patients of unauthorized AI use of patient data in June
Impact: Unauthorized entry and processing of patients’ health information in an AI tool
In June 2026, NewYork-Presbyterian Hospital patient information was entered into and processed by an AI tool without authorization during radiology research at Weill Cornell Medicine. The institution discovered the incident on September 6, halted the research and requested deletion of the relevant data, and reports in November said patients had been notified. The information involved included medical record numbers and imaging examination accession numbers, and the institution said it had found no evidence of misuse of patient information or access by unauthorized individuals.
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