Cybersecurity Solutions
Cyber Security Solutions
OT Cybersecurity for BMS, SCADA, Industrial Control & Critical Infrastructure
Zealcorps delivers cybersecurity solutions for Operational Technology environments, including BMS, SCADA, PLC, DCS, EMS, industrial automation systems, and smart building networks. Our cybersecurity approach focuses on protecting critical control systems without affecting safety, availability, reliability, or facility operation.
We design secure OT architectures using IEC 62443-aligned concepts such as risk assessment, zones and conduits, network segmentation, secure remote access, role-based control, system hardening, backup planning, and security lifecycle management.
Why OT Cybersecurity Matters
Modern control systems are no longer isolated. BMS, SCADA, PLC, DCS, EMS, meters, gateways, servers, and cloud-connected platforms often communicate through TCP/IP networks, remote access connections, and third-party integrations.
This improves visibility and operational efficiency, but it also increases cybersecurity exposure. A cyber incident in an OT environment may affect not only data, but also physical systems, safety, equipment availability, facility operation, and business continuity.
The ISA/IEC 62443 guide highlights that Industrial Automation and Control Systems require a different cybersecurity approach from normal IT systems because OT environments have stronger requirements for availability, safety, change control, and long equipment lifecycles.
Features of Cybersecurity Solutions
Review of existing BMS, SCADA, PLC, DCS, server, workstation, network, remote access, and third-party integration architecture.
Separation of enterprise IT, OT network, BMS network, SCADA network, third-party systems, servers, controllers, and field devices.
Firewall rules are designed to allow only required communication between approved systems, ports, protocols, and users.
Development of cybersecurity architecture based on zones, conduits, risk assessment, access control, and defense-in-depth principles.
Logical grouping of OT assets into security zones, with controlled communication conduits between each zone.
Remote maintenance access can be controlled through VPN, MFA, approval workflow, authentication, logging, and time-based access control.
Servers, workstations, network devices, controllers, and gateways are hardened by disabling unnecessary services and restricting