1300 285 009

Protect the Process – Not Just the Packets.

Sovereign Australian OT Security   SOCI Act Aligned   IEC 62443 Certified

Parasyn secures critical infrastructure where a cyber event doesn't just steal data, it stops production, endangers lives, and disrupts communities. Engineering-led OT security for Australia's most critical operational environments.

IEC 62443
Industrial Security Standard
5
Service Pillars
24/7
Zero-Disruption Implementation
0
Tolerance for Process Downtime
IEC 62443 Architecture/// SOCI Act Compliance/// Network Segmentation/// Anomaly Detection/// Secure Remote Access/// OT Incident Response/// Vulnerability Intelligence/// Managed Resilience/// ISO 27001 Aligned/// Sovereign Australian Capability///
Why Parasyn

Operational Integrity.
Above All Else.

We bridge the gap between traditional safety engineering and modern cyber threats, ensuring the physical process remains under control at all times.

🏭
Process-Aware Defence
We don't just secure "packets." We understand the PLC logic, SCADA telemetry, and industrial workflows they support, securing the system that controls the real world.
⚡
Zero-Disruption Implementation
Security controls are engineered specifically for 24/7 operational environments where "rebooting" is not an option. Every change goes through strict OT governance.
🛡️
Safety as the Primary Metric
Protecting people, assets, and the community by ensuring the Control Mission is never compromised. Physical safety drives every security decision we make.
🇦🇺
Sovereign Australian Capability
Local expertise that understands your site's specific safe state. We provide ongoing support aligned to the engineering lifecycle, not a remote SOC with no OT context.
Service Catalogue

Ten Services.
One Mission.

Every service is engineered around the realities of operational technology, where safety, availability, and integrity are non-negotiable requirements, not nice-to-haves.

01🏗️
IEC 62443 Security Architecture & Design
Engineering the blueprint for Zones and Conduits to ensure a defensible network foundation aligned to industrial standards.
02⚠️
OT-Specific Risk & Consequence Assessment
Identifying critical process crown jewels and modelling the physical impact of potential cyber-events on operations.
03🔒
Network Segmentation & Hardening
Physical and logical isolation of control environments to reduce the blast radius of any breach across zones and conduits.
04🔑
Secure Remote Access Systems
Identity-based, encrypted gateways for secure internal and third-party vendor access, without opening the plant to the internet.
05📡
Live Asset & Vulnerability Intelligence
Real-time, automated inventory of all field hardware, firmware versions, and serial numbers, continuous visibility across the OT estate.
06👁️
Industrial Anomaly Detection
Monitoring OT protocols (Modbus, DNP3, and more) for irregular behaviour that indicates process tampering or adversarial intrusion.
07⚙️
Engineering Change & Configuration Management
Security updates managed through strict OT governance to ensure patches never cause process downtime or operational upset.
08🚨
OT Incident Response & Safe State Playbooks
Site-specific recovery plans engineered to ensure a fast, validated return to production following any cyber incident.
09📊
Managed Operational Resilience
Ongoing sovereign Australian support and performance monitoring to keep security aligned with your engineering lifecycle.
10📋
Regulatory & SOCI Act Alignment
Engineering documentation and technical evidence required for critical infrastructure compliance under Australia's Security of Critical Infrastructure Act 2018. We handle the evidence, you retain the licence to operate.
Service Pillars

Five Pillars.
End-to-End Coverage.

Aligned with IEC 62443 ISO 27001 TS 50701 SOCI Act 2018

01
Strategy &
Compliance
  • OT Cybersecurity Strategy
  • SOCI Act Alignment
  • Security Governance
  • Policies & Standards
  • Residual Risk Governance
02
Architecture &
Engineering
  • IEC 62443 Architecture
  • Zones & Conduits
  • OT Network Segmentation
  • Secure Remote Access
  • Legacy OT Security
03
Risk
Assessment
  • OT Asset Discovery
  • High-Level Risk Assessment
  • Detailed Risk Assessment
  • Threat & Vulnerability Analysis
  • SL-T Determination
04
Implementation
  • Cybersecurity Requirements
  • Security Control Design
  • Segmentation Planning
  • Secure Access Implementation
  • Control Implementation Plan
05
Testing &
Validation
  • Security Validation Testing
  • Test Procedures
  • Control Verification
  • Operational Readiness
  • Residual Risk Acceptance
Defence in Depth

The Castle
Mentality.

No single point of failure. We apply layered redundancy across the plant floor, if one security layer is bypassed, the core process remains shielded by the next.

  • 🔐
    Functional Segmentation (Zones)
    Critical assets (PLCs, HMIs, SIS) grouped into hardened Zones. A compromise in one area cannot migrate to the Crown Jewels.
  • 🌐
    Controlled Communication (Conduits)
    Every data flow between zones is a strictly defined, monitored tunnel permitting only verified, necessary operational traffic.
  • 🔧
    Legacy Lifecycle Extension
    Wrapping older insecure-by-design hardware in a protective digital shell, avoiding premature or costly capital expenditure.
  • 👤
    Identity & Access Management
    Role-based access control ensuring only authorised personnel and vendors can reach critical control systems.
Policies & Awareness
Network Protection
Identity & Access
Threat Detection
OT CORE
Integrated Project Delivery

A Structured Lifecycle for
OT Cyber Risk.

A repeatable, standards-aligned methodology for managing cybersecurity risks across operational technology environments, from first engagement to continuous monitoring.

1
Identification
Define engagement scope, objectives and regulatory context
2
Asset Visibility
Establish visibility of SCADA, PLCs, RTUs, historians, networks
3
Threat Analysis
Identify threat actors, attack paths and system vulnerabilities
4
Risk Assessment
Evaluate risks by likelihood, operational impact and safety
5
Controls Design
Define segmentation, access control and monitoring requirements
6
Risk Acceptance
Agree residual risk levels with stakeholders and asset owners
7
Monitor & Review
Ongoing monitoring, governance and periodic security review
Standards & Compliance

Built on the
Right Foundations.

Every engagement is aligned to globally recognised industrial cybersecurity standards and Australia's critical infrastructure regulatory framework.

The global standard for Industrial Automation & Control Systems security. Zones, conduits, and security levels.
International information security management system requirements and best practice framework.
Railway-specific cybersecurity standard for CBTC and ETCS systems. Critical transport infrastructure.
Australia's Security of Critical Infrastructure Act 2018, compliance for registered critical infrastructure assets.
Sustained Resilience

Security Embedded in
OT Engineering.

Cybersecurity is a lifecycle, not a destination. Parasyn integrates security into the standard engineering management workflow, defences that never go stale.

🔄
Engineering Change Control
We apply a continuous Assess → Protect → Monitor → Improve loop. Security patches and configuration changes are managed via strict Engineering Change Control to prevent process upsets.
Lifecycle Managed
🎯
OT Vulnerability Management
We don't just scan and pray. We evaluate vulnerabilities against your specific process impact, prioritising remediation of conduits that protect your most critical control logic.
Risk-Prioritised
🦘
Sovereign Incident Readiness
Local Australian expertise that understands your site's specific safe state. We provide the playbook for operational recovery, ensuring the path back to production is fast and validated.
Australian Sovereign
Ready to Secure
Your Operations?
Talk to an OT security engineer, not a sales rep.
Request Assessment