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Regulator-posted notice

Breach notice filed by Memorial Sloan-Kettering Cancer Center (November 2013)

Organization named: Memorial Sloan Kettering Cancer Center Provisional: identity as filed, not yet matched to the directory
Type as the source lists it: Loss

What the sources say

HHS OCR breach portal (HIPAA breaches affecting 500 or more individuals) Primary notice

Posted on the HHS OCR breach portal (HIPAA breaches affecting 500 or more individuals) with a submission date of Nov. 13, 2013.

Organization as reported
Memorial Sloan-Kettering Cancer Center, NY
Entity type as reported
Healthcare Provider
Category as reported
Loss
Location of information as reported
Other Portable Electronic Device
Submission date
Nov. 13, 2013
Observed by BreachRecords
2026-10-18 16:15 UTC (revision 15264, row:6403)
Archived copy
Held in the private archive (provenance)

Memorial Sloan Kettering Cancer Center, the covered entity (CE), reported that a former employee’s personal unencrypted external computer hard drive was lost or stolen. The drive contained the protected health information (PHI) of 2,279 of the CE’s patients and included names, addresses, telephone numbers, dates of birth, medical record numbers, physician names, appointment dates, procedure type, and clinical information. The CE notified HHS, the media, and the affected individuals. Following the breach, the CE obtained assurances from the employee and his current employer that the PHI was deleted from all devices, computers and servers. The CE purchased and implemented an encryption solution to encrypt all data copied from its workstations, USB and external drives. The CE retrained employees on its HIPAA policies and procedures and reinforced its policies prohibiting the use of personal portable electronic data storage devices. During the investigation, OCR obtained assurances that the CE implemented the corrective actions. The CE is expected to conduct a risk analysis and implement a corresponding risk management plan.

The source's own words, from the revision above.

Figures, per source

  • 2,279 individuals affected (total reported), as reported by the HHS OCR breach portal (HIPAA breaches affecting 500 or more individuals), source date Nov. 13, 2013, revision observed 2026-10-18.

Each figure is one source's figure with the basis that source gave. Figures from different sources are shown side by side and are not added, averaged or chosen between.

Timeline

Source dates are the dates the sources give. Observation dates are when BreachRecords recorded each revision.

  • Submission date at the HHS OCR breach portal (HIPAA breaches affecting 500 or more individuals)
  • Observed by BreachRecords (revision 15264)
  • Approved by a reviewer

Organizations linked by a reviewer

Archived evidence

  • 3dbc27dd5742e041cc1e7fe18cc669e2901fbd3b86b7007ed27948ff4d406e1f
    text/csv, 5,530,996 bytes, from the HHS OCR breach portal (HIPAA breaches affecting 500 or more individuals), retrieved 2026-10-18 16:15 UTC. Archived privately · Provenance · Source page

Records reflect source filings as of the dates shown. BreachRecords is not a regulator.

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