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California Physicians’ Service d/b/a Blue Shield of California
ArchivedSubmitted 11/17/2023
Updated 17 hours ago ()
- State
- CA
- Covered entity type
- Health Plan
- Individuals affected
- 636,849
- Business associate present
- Yes
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Network Server
- First seen by InfoSec Signals
- Sep 23, 2026
- Last seen in OCR export
- Oct 25, 2026
OCR description
California Physicians’ Service dba Blue Shield of California, the covered entity (CE), reported that its business associate (BA) experienced a cyber-attack that compromised the protected health information (PHI) of 636,849 individuals. The PHI involved included names, Social Security numbers, diagnoses, addresses, birthdates, and claims information. In its mitigation efforts, the CE provided complimentary credit monitoring services and implemented additional administrative, technical, and security safeguards.
Change history
- Sep 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.