HHS OCR report ยท 2016
East Valley Community Health Center, Inc. data breach
OCR report facts
- Covered entity
- East Valley Community Health Center, Inc.
- Entity type
- Healthcare Provider
- State
- California
- Individuals affected
- 65,000
- Submission date
- Dec 15, 2016
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Network Server
- Business associate present
- No
- Status
- Archive (closed)
OCR description
On October 18, 2016, an unknown individual logged into one of the covered entity's (CE) computer servers without authorization and installed Troldesh/Shade malware, encrypting files that were stored on the server. Upon initial review, it appeared that no protected health information (PHI) was contained in the files; however, after further review the CE determined that one of the files contained claims data for 65,000 patients it had transmitted to its clearinghouse. The PHI involved in the b...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the East Valley Community Health Center, Inc. data breach?
The report to HHS OCR lists 65,000 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Dec 15, 2016.
What type of breach was it?
The OCR portal lists the type of breach as Hacking/IT Incident, with the breached information located in: Network Server.
Is the investigation still open?
No. The report is in the OCR portal archive, which holds reports where OCR has closed its review.
Is a breach notice letter from East Valley Community Health Center, Inc. legitimate?
This site cannot verify letters. Check the sender against the organisation's official website and the HHS OCR breach portal, and avoid calling numbers or clicking links only listed in an unexpected message. See our guide on what to do after a data breach notice.
Source: HHS OCR Breach Portal, OCR export October 2026. Network USA is not affiliated with HHS or East Valley Community Health Center, Inc..