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Southern Illinois Dermatology Data Breach Lawsuit Investigation
Shamis & Gentile P.A., one of the nation's premier class action law firms specializing in data breach cases, is investigating the Southern Illinois Dermatology data breach.
If you were affected by the data breach, your sensitive personally identifiable information may have been exposed, and you may be eligible for compensation.
About Southern Illinois Dermatology
Southern Illinois Dermatology is a privately owned dermatology practice founded in 1996 by Dr. Van Acker. Over nearly three decades, the practice has grown from a single office in Herrin, Illinois, to more than a dozen locations throughout rural Southern Illinois.
Services range from general dermatology and skin cancer treatment to cosmetic procedures and laser technology. The practice operates across multiple locations, including Carbondale, Harrisburg, DuQuoin, Anna, Murphysboro, Red Bud, Steeleville, Salem and Vandalia.
What Happened?
On Nov. 28, 2025, Southern Illinois Dermatology discovered that certain systems within its network had been affected by a cybersecurity incident. After learning of the issue, the company launched an immediate investigation with the assistance of third-party cybersecurity professionals.
The investigation determined that files containing personal and protected health information may have been accessed or acquired by an unauthorized third party.
The breach was disclosed to the Massachusetts Attorney General's office on April 2, 2026. According to public filings, the incident affected at least eight people in Massachusetts.
The threat actor known as INSOMNIA claimed responsibility for the breach and posted about it on a dark web forum on Feb. 7, 2026.
Information Exposed:
- Full names
- Addresses
- Dates of birth
- Social Security numbers
- Telephone numbers
- Email addresses
- Person numbers
- Medical record numbers
You May Be Entitled to Compensation
If your information was exposed in the Southern Illinois Dermatology data breach, you may be eligible for compensation. Lawyers are ready to help individuals affected by this incident understand their rights and pursue claims for damages, including potential compensation for time spent monitoring accounts, losses from fraud, and emotional distress.
To find out if you qualify and to join the lawsuit, complete the below form.
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