Ransomware Group insomnia Hits: Southern Illinois Dermatology
Summary
In the latest cybersecurity news, Southern Illinois Dermatology — a company operating in the US — has fallen victim to a ransomware attack conducted by the group insomnia. This data breach, discovered on 2026-02-07 21:28:51.567037, underscores the increasing need for proactive cybersecurity defenses as we continue through 2026.
Incident Report
| Attribute | Information |
|---|---|
| Target Organization | Southern Illinois Dermatology |
| Threat Group | insomnia |
| Summary | Southern Illinois Dermatology, founded in 1996 by Board-Certified Dr. Ted G. Van Acker, has grown from one office to 15 locations. We offer general, surgical, cosmetic dermatology and advanced laser treatments with attentive, professional care. |
| Date of Breach | 2025-11-28 00:00:00.000000 |
| Discovery Date | 2026-02-07 21:28:51.567037 |
| Region | US |
| Target Domain | www.siderm.com |
| Business Sector | Healthcare |
Recommended Security Actions
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How HookPhish Helps You Stay Ahead
Don’t wait for a breach to take action — stay informed and take control of your cybersecurity posture today.
You can also check if your organization’s data has been exposed using our free Data Breach Checker.
Disclaimer
HookPhish does not engage in the exfiltration, downloading, taking, hosting, viewing, reposting, or disclosure of any stolen information. All breach data reported here is sourced from publicly available threat intelligence feeds for awareness purposes only.

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