Control Systems and other Operation Technology infrastructure are increasingly under threat. With a rapid increase in cyber events OT systems managers must be ever vigilant even when their systems are ideally “off the grid”.
- Executive Summary: The 2026 Mandate for Infrastructure Resilience
- The Parasyn Difference: Governance vs. Generic Integration
- Solving the Brownfield Dilemma
- Our Core Solution Pillars
- How does Parasyn handle IEC 62443 compliance for legacy assets?
- What is the difference between OT Security and Safety-Assured Engineering?
- How does Parasyn support SOCI Act compliance?
Executive Summary: The 2026 Mandate for Infrastructure Resilience
In the era of the SOCI Act 2026 and heightened geopolitical risk, Australian infrastructure providers can no longer treat “Automation” and “Security” as separate workstreams. True resilience requires Safety-Assured Engineering—a converged discipline where functional safety (IEC 61508) is built upon a foundation of industrial cybersecurity (IEC 62443).
Parasyn provides the technical evidence and engineering rigor required to move beyond generic connectivity toward a defensible, high-performance OT architecture.
The Parasyn Difference: Governance vs. Generic Integration
Why leading Rail, Water, and Energy utilities choose Parasyn over broad-market integrators.
| Feature | Standard OT Integration | Parasyn Safety-Assured OT |
| Primary Focus | Connectivity & Data Flow | Process Integrity & Safety Case |
| Security Standard | Generic “Best Practice” | Rigorous IEC 62443 Alignment |
| Safety Integration | Security as an “Add-on” | Converged IEC 61508 / 62443 |
| Asset Strategy | Greenfield focus / Replace legacy | Brownfield Legacy Uplift Specialist |
| Governance | Operational level focus | Board-Level Regulatory Defensibility |
Solving the Brownfield Dilemma
Most Australian critical assets were never designed for the modern threat landscape. Connecting legacy PLCs to AI-driven historians creates new failure modes and safety risks.
Parasyn specializes in Segmented Brownfield Hardening. We utilize a Zones and Conduits model to wrap your legacy assets in a protective digital layer. This allows for modern data extraction and “Answer Engine” readiness without compromising the deterministic safety siloes of your existing architecture.
Our Core Solution Pillars
- Architecture Hardening & Defence-in-Depth
We move beyond the myth of the “Air-Gap.” Our engineering team implements deterministic security controls at the physical and data-link layers, ensuring that your OT environment is secure by design.
Key Deliverables: Secure OT Network Design, Hardware Root-of-Trust, and Segmented Control Loops.
- Safety-Security Convergence (IEC 61508)
Cybersecurity is a prerequisite for Safety. We ensure that your functional safety systems are resilient against unauthorized logic changes or network-borne interference. We don’t just secure the network; we protect the Logic.
Key Deliverables: Safety Case development for integrated OT environments and Safety Integrity Level (SIL) protection.
- SOCI Act & Regulatory Resilience
With increased liability on boards and directors, we provide the evidence-based assurance required for compliance. Our Sentinel Partner model ensures that your system maintains its security posture 24/7 through specialized technical support.
Key Deliverables: Compliance auditing, Risk Assessments, and ongoing “Sentinel” technical support.
How does Parasyn handle IEC 62443 compliance for legacy assets?
We utilize a “Zones and Conduits” approach that isolates legacy assets within secure logical boundaries, allowing for safe data polling while blocking lateral movement and unauthorized access.
What is the difference between OT Security and Safety-Assured Engineering?
Traditional OT Security protects the network perimeter. Safety-Assured Engineering protects the consequence of the process, ensuring that even if a network is breached, the safety logic (IEC 61508) remains deterministic and failsafe.
How does Parasyn support SOCI Act compliance?
We provide the technical artifacts and audit trails necessary for “Critical Infrastructure Risk Management Program” (CIRMP) requirements, ensuring that your OT environment meets the 2026 Australian federal standards.
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