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Incident 1823: Weill Cornell Medicine Radiology Research in New York City Reportedly Used Patient Data in AI Tools Without Authorization

Responded
Description: Weill Cornell Medicine disclosed that protected health information from NewYork-Presbyterian facilities in New York City was processed by unidentified AI tools during radiology research without authorization. The data included medical record identifiers and clinical details. The institution suspended the research and requested deletion; it reported no evidence of unauthorized viewing or subsequent misuse.
Editor Notes: 06/10/2026–06/20/2026: Protected radiology patient information was reportedly processed by AI tools without authorization. 09/06/2026: Weill Cornell Medicine learned of the incident and began investigating. 11/05/2026: Weill Cornell publicly disclosed the incident, reported suspending the research, and said it had requested deletion of the involved data. 11/14/2026: Incident ID created.

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Alleged: AI software developers developed an AI system deployed by Weill Cornell Medicine , Research institutions , Researchers and Healthcare organizations, which harmed Weill Cornell Medicine radiology patients , Patients , Privacy and Biometric data subjects.
Alleged implicated AI system: AI research tools

Incident Stats

Incident ID
1823
Report Count
4
Incident Date
2026-06-10
Editors
Daniel Atherton

Incident Reports

Reports Timeline

Incident Occurrence+1
Notice to Our Patients of Data Security Incident - Response
+1
Patient info improperly used in radiology AI research, academic institution says
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Notice to Our Patients of Data Security Incident

Notice to Our Patients of Data Security Incident

weill.cornell.edu

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Weill Cornell patient data entered into AI tools without authorization

Weill Cornell patient data entered into AI tools without authorization

beckershospitalreview.com

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Patient info improperly used in radiology AI research, academic institution says

Patient info improperly used in radiology AI research, academic institution says

radiologybusiness.com

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Improper AI use leads to another data incident, more patient notifications

Improper AI use leads to another data incident, more patient notifications

healthcareitnews.com

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Notice to Our Patients of Data Security Incident
weill.cornell.edu · 2026
Weill Cornell Medicine post-incident response

At Weill Cornell Medicine, we are committed to protecting the confidentiality and security of our patients’ information. This notice concerns a privacy incident involving some patient health information used in an unauthorized capacity in c…

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Weill Cornell patient data entered into AI tools without authorization
beckershospitalreview.com · 2026

New York City-based Weill Cornell Medicine disclosed that patient health information was entered into AI tools and processed using machine learning without authorization as part of a radiology research study.

Weill Cornell learned of the in…

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Patient info improperly used in radiology AI research, academic institution says
radiologybusiness.com · 2026

Private patient information was improperly used in recent radiology artificial intelligence research, according to an alert from Weill Cornell Medicine shared on Thursday.

The noted New York City-based institution says it first found out ab…

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Improper AI use leads to another data incident, more patient notifications
healthcareitnews.com · 2026

A Weill Cornell Medicine radiology research project involving protected health information fed that patient data into an AI tool at NewYork-Presbyterian two months ago, and now patients are being informed that some of their PHI may have bee…

Variants

A "variant" is an AI incident similar to a known case—it has the same causes, harms, and AI system. Instead of listing it separately, we group it under the first reported incident. Unlike other incidents, variants do not need to have been reported outside the AIID. Learn more from the research paper.
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