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Massena Hospital

Disclosed May 21, 20215 years ago1,897 affectedConfirmed

Official notice

The covered entity (CE), Massena Hospital, reported that its business associate experienced a cyber-attack that affected the electronic protected health information (ePHI) of 1,897 individuals. The ePHI involved included names, dates of birth, and medications prescribed. The CE notified HHS, affected individuals, the media, and provided substitute notice on its website.

What is known

People affected1,897 (as reported to HHS)
DisclosedMay 21, 2021
AttackHacking
Data exposedNames, Health
SectorHealthcare · US
StatusConfirmed

Sources

Source
HHS OCR breach report (archive, resolved): Massena Hospital (Healthcare Provider, NY)ocrportal.hhs.gov · Official notice

Notices filed

WhereFiledPeople
HHS archivetotalMay 21, 20211,897
History of this record
  • 2026-09-25 · added · backfill source

First seen 2026-09-25 (HHS archive), confirmed by HHS OCR. Record counts are as reported. Not legal advice.

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