Southern Illinois Dermatology Suffers Data Breach, Exposing Sensitive Patient Information On November 28, 2025, Southern Illinois Dermatology a privately owned clinic based in Herrin, Illinois detected unauthorized access to its computer network. The breach potentially compromised sensitive personal data of patients, including names, addresses, dates of birth, Social Security numbers, telephone numbers, email addresses, and medical record numbers. The incident came to light when the healthcare provider identified the intrusion, prompting an investigation into the scope of the exposure. Individuals who received a data breach notification from Southern Illinois Dermatology may face heightened risks of identity theft and fraud. National class action law firm Edelson Lechtzin LLP has since launched an investigation into potential legal claims on behalf of affected individuals. The firm is offering free case evaluations to determine eligibility for pursuing remedies related to the breach. Southern Illinois Dermatology has been providing medical, cosmetic, and advanced skin treatments since 1996. The full extent of the breach’s impact remains under review.

Southern Illinois Healthcare suffered a data breach that exposed more than 600 patients' information. The misdirected data includes names; addresses; Medicare numbers or Member ID numbers for non-Medicare patients. They took immediate action to identify the cause and correct the error. SIH mailed notice of the incident to affected patients and posted statements on its websites, sih.net and sihmedicalgroup.net. SIH offered free credit repair and monitoring services to those potentially impacted.