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Memorial Sloan Kettering Cancer Center

ArchivedSubmitted 09/14/2020

Updated 16 hours ago ()

State
NY
Covered entity type
Healthcare Provider
Individuals affected
73,536
Business associate present
Yes
Type of breach
Hacking/IT Incident
Location of breached information
Network Server
First seen by InfoSec Signals
Sep 23, 2026
Last seen in OCR export
Oct 25, 2026

OCR description

The covered entity (CE), Memorial Sloan Kettering Cancer Center, reported that is business associate experienced a ransomware attack that affected the electronic protected health information (ePHI) of 73,536 individuals. The ePHI involved included names, mailing addresses, email addresses, dates of birth, and telephone numbers. The CE notified HHS, affected individuals, and the media.

Change history

  • Sep 23, 2026Added to OCR's archive list

Source: HHS OCR Breach Portal, U.S. Department of Health and Human Services, Office for Civil Rights about this source

Records are reproduced as published; entity names and figures are OCR's.

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