At a glance: Stormshield launches the SNi50, an OT firewall with network segmentation, protocol inspection, and VPN remote maintenance designed to ensure high availability and NIS2 compliance for critical infrastructure.
European cybersecurity provider Stormshield has unveiled the SNi50, an industrial firewall specifically designed for complex Operational Technology environments with high availability and operational continuity requirements. The device addresses growing regulatory demands in critical infrastructure sectors such as energy, healthcare, and manufacturing.
The SNi50 is engineered for continuous operation under demanding industrial conditions. It targets organizations with distributed production facilities, multiple manufacturing lines, and complex OT infrastructure, where even brief downtime can have significant business consequences. The system features advanced redundancy mechanisms and protective functions designed to maintain operations even when technical disruptions occur.
Network segmentation is a core component of the security architecture: the SNi50 supports various operating modes to flexibly divide industrial networks into security zones and selectively isolate sensitive systems. This enables integration into existing infrastructure without extensive architectural changes and addresses requirements of the NIS2 Directive and the industrial standard IEC 62443.
The firewall uses Deep Packet Inspection for detailed traffic analysis: it examines industrial communication protocols for suspicious or potentially harmful commands before they can impact production processes. This is designed to detect manipulation attempts and faulty control commands early—particularly critical in automated environments where a single incorrect command can cause disruptions.
Another key focus is securing remote maintenance access: the SNi50 protects remote access through encrypted VPN connections and restricts access to authorized personnel. Transmitted data streams are continuously monitored to detect unauthorized access and abuse during legitimate maintenance connections. On the hardware side, the device supports both copper and fiber optic connections for flexible deployment in diverse industrial environments.
Source: www.it-daily.net · Published 11 June 2026
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