Southwire Data Breach Exposes Employee Health and Financial Data

Southwire Co. LLC, a family-owned wire and cable manufacturer based in Carrollton, Georgia, disclosed a data breach that affected its employee health and welfare plan.

The company reported the incident to the Vermont Attorney General on Nov. 11, 2026. Southwire also published a HIPAA media notice about the incident on Nov. 12, 2026.

The attack occurred between November 2025 and January 2026. Upon identifying the incident on Jan. 29, 2026, Southwire took steps to secure its environment and brought in third-party cybersecurity specialists to investigate the scope and nature of the intrusion.

The investigation determined that an unauthorized party had gained access to systems maintained by Southwire and acquired certain files during the breach window.

On March 22, 2026, a ransomware group known as Qilin posted a claim on the dark web through the Tor network, stating it had obtained the organization's data.

Following the initial response, Southwire conducted a review of the affected files to determine the nature of the information that may have been compromised and to identify the individuals whose data was involved. The review was completed in late October 2026.

The breach potentially exposed both personally identifiable information (PII) and protected health information (PHI). The PII that may have been exposed included names, Social Security numbers, dates of birth, home addresses, government ID numbers, financial account codes, credit and debit account information and login credentials.

The PHI that may have been exposed included health plan information (such as plan numbers) and medical information.

Southwire's response to the breach

Southwire is offering affected individuals 24 months of complimentary credit monitoring and identity protection services.

The plan recommended that all potentially affected individuals remain vigilant by reviewing their account statements, credit reports and other financial records for any unusual activity.

Southwire set up a dedicated toll-free phone line for individuals who have questions about the incident or who would like additional information. Individuals who may be affected can call 1-833-931-3700, Monday through Friday from 8 a.m. to 8 p.m. Central Time, excluding major U.S. holidays. Callers should be prepared to provide engagement number B175949 when calling.