Solutions
Unlike IT networks, OT networks prioritize availability, determinism, and stability, often relying on flat architectures and legacy protocols. These characteristics create unique security challenges, especially as connectivity with IT and external systems increases.
OT Network Security focuses on protecting the communication layers that support industrial operations without disrupting real-time processes. The approach involves segmenting traffic, inspecting protocol-specific behavior, and detecting anomalies that traditional IT tools often miss.
TSC works with clients to deploy purpose-built network security solutions for OT environments, designed to provide visibility and control while respecting operational constraints.
This solution includes the following:
These firewalls are specifically designed for control environments, supporting industrial protocols (e.g., Modbus, DNP3, IEC 104) and allowing granular filtering based on function codes or device roles. They help enforce network segmentation, reduce lateral movement risk, and enable zone-based security architectures, such as the Purdue model.
Managing vulnerabilities in OT systems requires a careful balance: knowing where weaknesses exist without causing disruption to critical processes.
