Every public data breach

44 disclosed this week · 26,355 on record

Dignity Health

Disclosed May 31, 201855,947 affectedConfirmed

Official notice

During a mass emailing of patient notifications in April 2018, Dignity Health, the covered entity (CE), used an email list incorrectly formatted by its business associate (BA), causing 55,947 individuals to receive an email intended for another individual. The protected health information (PHI) included the intended email recipient’s first name, last name, and physician name. The CE provided breach notification to HHS, affected individuals, and the media. OCR obtained assurances that the CE took voluntary corrective actions, including eliminating its use of personalized greetings in mass patient communications, updating its policies and procedures related to email communications, and designating one individual to review and approve all mass communication projects prior to transmittal.

What is known

People affected55,947 (as reported to HHS)
DisclosedMay 31, 2018
AttackInsider
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

History of this record
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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