OT & Industrial Control Systems Security

OT (Operational Technology) security protects industrial control systems (ICS), SCADA, PLCs, and other systems that manage physical processes in manufacturing, energy, utilities, and critical infrastructure. In India, the rapid digitization of manufacturing (Industry 4.0), smart grid initiatives, and government digitization programs have dramatically increased OT cyber risk. Unlike IT breaches that cause data loss, OT security failures can cause production shutdowns, equipment damage, environmental hazards, and endanger human safety.

Never. We use 100% passive, non-intrusive methods for OT asset discovery and network analysis. Our engineers are trained in industrial protocols (Modbus, DNP3, OPC-UA) and understand that availability is the highest priority in OT environments. Active testing is only conducted during planned maintenance windows with full coordination with your operations team, and we always have rollback procedures in place.

We implement a defense-in-depth approach based on the Purdue Model and ISA/IEC 62443 zones and conduits: proper network segmentation between IT and OT zones, secure data diodes or DMZs for northbound data flow, protocol-aware firewalls at zone boundaries, identity-based access control for remote access, and continuous monitoring of cross-zone traffic for anomalies. This allows business data to flow for analytics while preventing lateral movement of threats from IT to OT networks.

We serve manufacturing (automotive, pharma, FMCG), power & utilities, oil & gas, water treatment, transportation, smart buildings, and any organization with industrial control systems. Our engineers have hands-on experience with major ICS vendors including Siemens, ABB, Schneider Electric, Honeywell, Rockwell Automation, and Emerson.

We align with IEC 62443 (Industrial Automation and Control Systems Security), NIST SP 800-82 (Guide to ICS Security), NERC CIP (for energy sector), ISA-99, and MITRE ATT&CK for ICS framework for threat modeling and detection use case development. For Indian organizations, we also map to CERT-In guidelines and sector-specific mandates from CERC, PNGRB, and other regulators.

OT security differs fundamentally from IT security in several ways: availability trumps confidentiality (uptime is everything), patching is often impossible on legacy systems, safety is a primary concern (physical harm potential), systems have 20-30 year lifecycles vs. 3-5 years for IT, protocols are industrial-specific (Modbus, DNP3, not TCP/IP), and any security control must never impact process safety. Our team has dedicated OT security engineers, not IT security professionals repurposed for industrial environments.