The covered entity (CE), Memorial Sloan Kettering Cancer Center, reported that an employee was the subject of an email phishing scheme that affected the protected health information (PHI) of 12,274 individuals. The PHI involved names, addresses, dates of birth, diagnoses, lab results, medications, and other treatment information. The CE notified HHS, the affected individuals, the media, and provided substitute notice. In response to the breach, the CE implemented additional administrative, technical, and security safeguards. Staff were retrained on email security.
Change history
Change history
Sep 23, 2026
Added 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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