Kannarr Eye Care Data Breach Affects 14,003 Patients

Kannarr Eye Care, a full-service optometry practice with locations in Pittsburg, Girard and Fort Scott, Kansas, disclosed a data breach that affected approximately 14,003 individuals in the United States.

The breach was reported to the U.S. Department of Health and Human Services on May 28, 2026. Kannarr Eye Care posted a notice about the incident on its website.

Kannarr Eye Care discovered an unauthorized actor gained access to certain systems within its network on March 30, 2026. An investigation into the incident determined that the actor accessed certain fields containing personal and health information relating to some patients.

On April 10, 2026, a ransomware group known as INC Ransom claimed responsibility for the attack through a posting on the Tor network. The group stated it had obtained the organization's data.

The exposed data included both personally identifiable information (PII) and protected health information (PHI). Specifically, the types of information involved included individuals' names, Social Security numbers, medical information and health insurance information.

Kannarr Eye Care's response to the breach

Kannarr Eye Care mailed notification letters to individuals whose information may have been impacted. Each letter included details about the specific types of information involved for that individual.

The company has set up a dedicated assistance line at 1-833-916-8302, available Monday through Friday from 8 a.m. to 8 p.m. Central Time. Individuals who have questions about the incident or who would like to submit a notification claim can call the number.