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Blue Shield of California

ArchivedSubmitted 01/14/2016
State
CA
Covered entity type
Health Plan
Individuals affected
20,764
Business associate present
No
Type of breach
Unauthorized Access/Disclosure
Location of breached information
Network Server
First seen by InfoSec Signals
9/23/2026
Last seen in OCR export
9/23/2026

OCR description

On December 7, 2015, Blue Shield of California, the covered entity (CE), discovered that its servers were breached via social engineering at its call centers in Costa Rica. The breach affected 20,764 patients’ protected health information (PHI). The types of PHI involved included patients’ names, addresses, dates of births, and social security numbers. The CE provided breach notification to HHS, affected individuals, the media. In response to the breach, the CE disabled all existing login credentials and manually distributed new passwords. It trained all call center workforce members about the risks of social engineering and implemented two-factor authentication for external access to its network via its virtual private network (VPN). The CE also provided OCR with additional documentation as relevant to the breach investigation, including its HIPAA Notice of Privacy Practices Policy. OCR obtained assurances that the CE implemented the corrective actions listed above.

Change history

  • 9/23/2026Added to OCR's archive list

Source: HHS OCR Breach Portal, U.S. Department of Health and Human Services, Office for Civil Rights about this source

Records are reproduced as published; entity names and figures are OCR's.

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