Back to the register

Defense Health Agency (TriWest)

ArchivedSubmitted 05/21/2026

Updated 20 hours ago ()

State
VA
Covered entity type
Health Plan
Individuals affected
11,844
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

The covered entity (CE), Defense Health Agency, reported that several employees were the targets of an email phishing scheme that affected the protected health information (PHI) of approximately 11,844 individuals. The PHI involved names, addresses, dates of birth, other identifiers, claims information, diagnoses/conditions, and other treatment information. The CE notified HHS, the media, and the affected individuals. OCR provided technical assistance to the CE regarding the HIPAA Rules.

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.

Your cookie choices
We use essential cookies to run this site, and, only with your consent, an advertising cookie from Google to measure whether our ads lead to sign-ups and subscriptions. See our for details.