Safeguarding critical infrastructure
Arlis Security helps infrastructure owners, operators, developers, and engineering partners understand cyber risk, secure operational technology, and protect essential functions. We combine IEC 62443-aligned assessment with practical architecture and engineering controls designed for real operating conditions.
Future proof infrastructure resilience
Infrastructure is increasingly software-defined, remotely operated, and connected to suppliers and cloud services. A cyber incident can now affect physical processes, safety, availability, and the continuity of essential services.
Arlis Security starts with the system under consideration: its essential functions, physical process, operating constraints, dependencies, and credible failure modes.
We translate cyber risk into proportionate architecture, requirements, and operating practices. Where consequences demand it, independent engineering safeguards provide an additional layer of protection for the physical process.
Services
Independent assessment against the applicable parts of IEC 62443. We define the scope and criteria, evaluate implementation evidence, and issue a clear attestation of the assessed alignment for owners, regulators, and lenders.
We translate risk into testable requirements for technical specifications, tender documents, and contracts. We support supplier qualification, bid evaluation, deviation management, and acceptance criteria so security commitments remain enforceable throughout delivery.
Independent evaluation of operational technology suppliers, platforms, and security tools. We assess functional fit, integration risk, component capabilities, lifecycle support, maintainability, and evidence against the system requirements and operating constraints.
We review and develop operational technology architecture from the system boundary through every external interface. Work covers zones and conduits, vendor remote access, enterprise and cloud connectivity, boundary protection, monitoring, resilience, and operational constraints.
We verify that design and contract requirements are implemented before operational acceptance. Reviews cover configurations, access, asset inventories, logging, backups, recovery evidence, test results, deviations, and handover records across factory and site acceptance.
Focused posture assessments and prioritised improvement roadmaps for operating assets. We address asset management, access governance, vulnerability and patch processes, monitoring, incident response, change control, supplier management, competence, and assurance evidence.
We engineer systems to maintain essential functions during cyber incidents and restore controlled operation. Work includes degraded modes, cyber-independent safeguards, backup and recovery arrangements, response interfaces, restoration testing, and exercises that expose dependencies before an incident.
Independent review for acquisitions, financing, investment, and portfolio oversight. We assess architecture, control maturity, IEC 62443 alignment, regulatory exposure, supplier dependencies, inherited vulnerabilities, recovery capability, and remediation priorities.
Our approach
Arlis aligns its approach with IEC 62443 and established operational technology security practices. We assess risk, design proportionate controls, and verify implementation so security remains effective as infrastructure, threats, and operating conditions change.
Define the system, assess credible risk, and establish proportionate security objectives.
Translate risk into architecture, requirements, responsibilities, and practical controls.
Test implementation, document evidence, manage residual risk, and adapt through the lifecycle.
Why Arlis Security
We understand the physical system, its control philosophy, and its operational constraints. Security decisions are grounded in how infrastructure is designed, integrated, operated, and maintained.
Our advice is not tied to a technology vendor, product, or delivery contractor. We represent the owner's interests and provide clear findings, defensible priorities, and candid challenge where it matters.
We account for safety, availability, deterministic operation, legacy assets, supplier access, and restricted maintenance windows—the realities that distinguish OT from IT.
Contact
Talk to Arlis Security about an assessment, architecture review, or infrastructure project.
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