- State
- CA
- Covered entity type
- Health Plan
- Individuals affected
- 869
- Business associate present
- Yes
- 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
Cognizant TriZetto Software Group, Inc., a business associate (BA) of Western Health Advantage, experienced a communication error while performing routine maintenance on its servers which allowed another covered entity to inadvertently download the electronic protected health information (ePHI) of 869 individuals. The ePHI involved included names, birthdates, addresses, diagnoses, clinical information, and other treatment information. The CE notified HHS, affected individuals, and the media. In its mitigation efforts, the BA implemented additional technical safeguards to better protect its ePHI.
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.