The Hidden Risk of Clinics Without Network Segmentation
A 3-floor private medical clinic with 45 consulting rooms, laboratory, imaging, and emergency services arrived with a flat network where diagnostic imaging equipment (MRI, digital X-rays), patient monitors, medical staff laptops, waiting room WiFi, and the HIS system all shared the same network without separation. A ransomware attack on any administrative computer could potentially reach critical medical equipment.
The Secure Medical Network Architecture
Medical Equipment VLAN (Completely Isolated): Imaging equipment, patient monitors, and diagnostic devices connected on their own VLAN with explicit rules prohibiting any unsolicited inbound traffic. They can only communicate with the internal PACS server via DICOM protocol. No internet access.
HIS VLAN (Digital Medical Records): Separate from the medical VLAN. Only authorized terminals in each consulting room can access the HIS server. Medical equipment cannot directly query HIS — they pass through a controlled secure API.
- Patient WiFi with Captive Portal: Patients in the waiting room have WiFi on a completely isolated VLAN with a corporate-branded captive portal. They cannot see any internal devices.
- Security Result: In 18 months post-installation, 3 malware attempts detected on reception workstations were completely contained in their VLAN without affecting critical medical systems.
Does your healthcare institution have medical equipment connected on the same network as administrative computers?
We design network architectures for medical institutions with complete isolation of critical systems and privacy standard compliance.
Secure My Medical Network
