Health Data Breach Tracker/CA

Business Associate · Under investigation

Sierra Management Group

1,279 individuals · submitted June 7, 2026

About this report

Sierra Management Group, listed by OCR as a business associate in CA, reported a breach of unsecured protected health information to the HHS Office for Civil Rights on June 7, 2026, affecting 1,279 individuals. OCR lists the breach type as Hacking/IT Incident and the location of the information as Network Server. Business associate present: Yes. OCR status: under investigation.

OCR has not published a case summary for this report. The text above restates the structured fields OCR lists.

Organization
Sierra Management Group
State
CA
Entity type
Business Associate
Individuals affected
1,279
Submission date
June 7, 2026
Breach type
Hacking/IT Incident
Location of information
Network Server
Business associate present
Yes
OCR status
Under investigation

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