Every public data breach

47 disclosed this week · 26,367 on record

Kaleida Health

Disclosed Jul 21, 20172,789 affectedConfirmed

Official notice

The covered entity (CE), Kaleida Health, reported that numerous employees were the victims of an email phishing scheme that affected the electronic protected health information (ePHI) of 744 individuals. The ePHI involved included names, medical record numbers, dates of birth, diagnoses, Social Security numbers, health insurance information, treatment information, and other clinical information. The CE notified HHS, affected individuals, the media, and provided substitute notice on its website. In response to the breach, the CE revised its policies and procedures to better protect its sensitive data and retrained it workforce members. OCR obtained assurances that the CE implemented the corrective actions noted.

What is known

People affected2,789 (as reported to HHS)
DisclosedJul 21, 2017
AttackHacking
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

History of this record
records2026-09-25
744 to 2789by backfillSource
disclosed2026-09-25
2017-08-25 to 2017-07-21by backfillSource
Added2026-09-25
First recordedby backfillSource

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

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