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Southern Illinois Dermatology Data Breach Reported, Lawsuit Possible

Classaction • April 6, 2026

Attorneys working with ClassAction.org are looking into whether a class action lawsuit can be filed in light of the Southern Illinois Dermatology data breach.

As part of their investigation, they need to hear from individuals who had their information exposed in the incident , including those who received notice of the Southern Illinois Dermatology data breach or otherwise believe they are affected.

Southern Illinois Dermatology, a medical and cosmetic dermatology practice with 13 locations in rural Southern Illinois, has reported a cybersecurity incident. A notice posted on the company’s website states that on November 28, 2025, the practice identified unusual activity within its network, prompting the company to engage third-party cybersecurity professionals to investigate.

The investigation found that unauthorized access potentially exposed personal and protected health information, including names, addresses, dates of birth, Social Security numbers, details, and medical record numbers.

Starting April 2, 2026, the practice began notifying those whose information may have been compromised in the Southern Illinois Dermatology data breach (sample notification letter pictured below).

If your information was exposed in the Southern Illinois Dermatology data breach, attorneys want to hear from you. You may be able to start a class action lawsuit to recover compensation for loss of privacy, time spent dealing with the breach, out-of-pocket costs, and more.

A successful case could also force Southern Illinois Dermatology to ensure they take proper steps to protect the information they were entrusted with.

Affected by the Southern Illinois Dermatology data breach? Fill out the form on this page today.

If you believe your information was exposed in the Southern Illinois Dermatology data breach, fill out the form on this page to get in touch with us.

An attorney or legal representative may then reach out to you to explain more this investigation and ask you a few questions.

Remember, there is no cost to get in touch, and you are under no obligation to take action after speaking to someone.

Published: April 6, 2026

The information submitted on this page will be forwarded to Bryson Harris Suciu & DeMay PLLC who has this investigation.

The full story

This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Southern Illinois Dermatology Data Breach Exposes Sensitive Patient Information Southern Illinois Dermatology reported a data breach on April 2, 2026, affecting personal and medical information of patients. The breach was identified on November 28, 2025, when unusual network activity was detected. A third-party cybersecurity firm was engaged to investigate the incident. The threat actor known as Insomnia claimed responsibility for the breach on February 7, 2026, alleging that sensitive data had been leaked on the dark web. Exposed information includes names, addresses, dates of birth, Social Security numbers, and medical record numbers. The company notified affected individuals and provided guidance on protecting their information. Eight residents from Massachusetts were specifically identified as affected. A dedicated response line was established for inquiries related to the breach. 2 sources 52

Extracted Entities

Southern Illinois Dermatology Data Breach Reported, Lawsuit Possible

The full story

Extracted Entities

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