Westmark Enterprises Data Breach Compromises Social Security Numbers

Westmark Enterprises Inc., a Dubuque, Iowa-based company that provides back-office support services to affiliated businesses, disclosed a data breach that occurred in August 2026.

The company reported the breach to the attorneys general of Massachusetts and New Hampshire starting on Oct. 26, 2026. Westmark began notifying consumers by written notice on Oct. 23, 2026.

On Aug. 26, 2026, Westmark Enterprises initially became aware of suspicious activity impacting certain internal computer systems and services, according to the company's notification to consumers. The company worked to secure its computer systems and restore services and launched an investigation with the assistance of external specialists to determine the nature and scope of the event.

The investigation found that an unauthorized actor gained access to a limited segment of the company's network between Aug. 21, 2026, and Aug. 26, 2026. During this period, files were copied and potentially viewed.

Following the discovery of the unauthorized access, Westmark began a comprehensive review of potentially affected files. The goal was to determine what information was involved and to identify the individuals whose data may have been compromised.

The personal information exposed in this breach included names and Social Security numbers.

Westmark Enterprises' response to the breach

Westmark is offering affected individuals 24 months of complimentary credit monitoring and identity restoration services through Experian IdentityWorks at no cost.

To enroll, affected individuals can visit the Experian IdentityWorks enrollment page and enter the activation code included in their notification letter. Enrollment must be completed by Jan. 29, 2027.

Affected individuals who have questions can call Westmark's dedicated assistance line at 833-918-4518, Monday through Friday from 8 a.m. to 8 p.m. Central time, excluding major U.S. holidays. Individuals can also write to Westmark directly at 4050 Westmark Drive, Dubuque, IA 52002-2624.