Every public data breach

44 disclosed this week · 26,355 on record

BJC HealthCare ACO

Disclosed Feb 26, 20162,393 affectedConfirmed

Official notice

On December 22, 2015, an employee sent an unencrypted email to a third party, in violation of the covered entity's (CE) policies. The breach involved the protected health information (PHI) of approximately 2,393 individuals and included patients’ names, birthdates, Medicare health insurance numbers, and genders. The CE, BJC HealthCare ACO, LLC, provided breach notification to HHS, affected individuals, and the media and posted substitute notification on its website. The CE also contacted the recipient of the email to report that the email was sent out without encryption and contacted all private physician participants to test their computer servers for transport layer security (TLS). The CE provided mandatory training to all its workforce members and additionally trained the employee responsible for the incident on secure email. OCR obtained documentation which showed that the CE implemented the corrective actions listed.

What is known

People affected2,393 (as reported to HHS)
DisclosedFeb 26, 2016
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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