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Industrial Control Systems & Operational Technology Security

At Léargas Security, we understand that protecting Industrial Control Systems (ICS) and Operational Technology (OT) environments requires more than just traditional IT security tools. That’s why we’ve developed tailored solutions designed specifically for energy, water, manufacturing, and critical infrastructure sectors—where uptime, safety, and visibility are mission-critical.

Why ICS/OT Security Matters

ICS and OT systems run the machinery that powers our world—but most were not built with modern cybersecurity threats in mind. They often lack basic protections like encryption or authentication, making them prime targets for ransomware, data exfiltration, and nation-state actors. Securing these environments requires deep context, specialized protocol support, and the ability to operate in low-latency, high-availability environments.

What Sets Léargas Apart

Léargas is one of the few security platforms that delivers native ICS/OT visibility without relying on third-party integrations. Our platform is purpose-built to support:

  • SCADA Systems

  • PLC & RTU Communications

  • Modbus, DNP3, BACnet, IEC 104, and more

  • Legacy, Air-Gapped, and Converged Environments

Deep Protocol Awareness

We don’t just see network traffic—we understand it. Léargas includes full parsing and enrichment of ICS-specific protocols like:

  • Modbus/TCP

  • DNP3

  • Siemens S7

  • EtherNet/IP (ENIP)

  • OPC UA

  • MQTT (including secured TLS-based implementations)

This enables us to identify misconfigurations, unauthorized device changes, unsafe commands, and more—in real time.

Unified IT/OT Security

Unlike other solutions that silo your visibility, Léargas integrates ICS/OT insights directly into your broader security ecosystem. That means you get:

  • Single-pane-of-glass monitoring across IT, OT, SaaS, and Cloud

  • Integrated SOC visibility and response workflows

  • Automated playbooks for ICS alerts and indicators

  • Zero-trust segmentation and micro-perimeter enforcement

Use Cases

  • Rural Electric Cooperatives: Map ICS assets, detect anomalies, and block threat actors without impacting uptime

  • Water Treatment Facilities: Ensure compliance with EPA regulations and detect unsafe process behavior

  • Manufacturing Plants: Protect against ransomware and detect internal misuse of control systems

  • Smart Buildings & Campuses: Monitor BACnet, HVAC, and power systems for vulnerabilities

Active Defense Without Compromise

We’ve designed Léargas for passive monitoring and active defense—allowing you to detect and respond to threats without disrupting sensitive systems. Whether you operate in an air-gapped environment or need cloud-enabled analytics, we support your architecture.