IT · OT · ICS · Critical Infrastructure
Manage Lines delivers cybersecurity solutions for enterprise IT, operational technology, industrial control systems, and critical infrastructure.
Services
Assessment, architecture and hands-on improvement across enterprise and industrial networks. Each engagement is scoped to your risk, your constraints and your operating reality.
Defense-in-depth for industrial control systems: segmentation, secure remote access and asset visibility designed around production, not against it. IEC 62443-aligned architectures for PLC, DCS, SCADA and HMI environments, from Level 0 field devices to the enterprise edge.
Hardening of servers, identity, endpoints and core network services so business systems resist common attack paths.
Learn moreSecure design of industrial Ethernet, redundant rings and field networks using PROFINET, EtherNet/IP and Modbus TCP.
Learn moreZones and conduits based on the Purdue Model, with an industrial DMZ that stops lateral movement from enterprise IT.
Learn moreSafety-aware discovery of vulnerabilities across IT and OT, ranked by real operational consequence instead of raw CVSS score.
Learn moreIndependent design authority for new builds, expansions and modernizations, from reference architecture to vendor review.
Learn moreReview, design and rationalization of perimeter and internal firewalls, including industrial firewalls that understand OT protocols.
Learn moreGap assessments against IEC 62443 and other relevant frameworks, with a practical path toward alignment. We support readiness; we do not certify.
Learn moreAdvice on what to monitor, how to detect it and how to respond, including OT-specific playbooks. Advisory only; not a managed SOC.
Learn moreA structured baseline of where you stand today and a sequenced, budget-aware roadmap for what to do next.
Learn moreOT Cybersecurity
A dropped packet can stop a line. A rogue PLC command can open a valve. We engineer IEC 62443-aligned architectures that defend industrial control systems without disrupting critical production.
Industries
The sectors we are equipped to serve, and the problems that keep their engineers up at night.
Remote wellheads, pipelines and processing sites running legacy RTUs and SCADA over low-bandwidth links, where availability and safety come first.
Substation automation, DNP3 and IEC 61850 environments, and the segmentation and access controls expected by sector requirements such as NERC CIP.
Shop-floor networks where downtime is measured in lost output: PLC recovery planning, MES integration and contained vendor access.
Building management, HVAC, power monitoring and life-safety systems increasingly connected to corporate networks and cloud platforms.
Water, wastewater and other essential services with dispersed sites, cellular telemetry and central historians that must stay trustworthy.
Corporate networks, data centers and hybrid cloud estates that need sound architecture, hardened infrastructure and clear risk priorities.
These are target sectors for our services, not a list of clients.
Why Manage Lines
Recommendations are framed in terms of operational and financial consequence, so leadership can decide with clarity.
We speak both languages: Active Directory and firewalls, as well as PLC logic, fieldbus protocols and process safety.
Controls are proportionate to consequence. Your highest-impact assets get the strongest protection first.
Designs that respect latency, determinism and maintenance windows. Reboot-to-patch is not a plan for a water plant.
Security that operators can live with: changes are staged, tested and scheduled around production.
Every engagement ends with readable diagrams, prioritized findings and actions your team can execute.
Methodology
Industrial systems cannot fail in production. Every engagement follows the same disciplined path.
Site walkdowns, architecture and documentation review, and asset discovery that is safe for live systems.
Threats and vulnerabilities are ranked by operational consequence, not by tool output alone.
Zones, conduits, access and monitoring designed to fit the way your operations actually run.
We implement alongside your team or deliver a precise, sequenced plan for your integrators.
Controls are tested against the design, findings are closed out and the roadmap is refreshed.
Share what you are protecting and what is worrying you. We will tell you honestly whether and how we can help.