Cyber resilience engineering · Critical infrastructure

Engineering resilient systems for mission‑critical environments.

An Australian cybersecurity and systems engineering consultancy securing complex cyber‑physical systems across critical infrastructure, defence and enterprise, security by design, from research to operational capability.

Find out what's possible Our research

Cyber Resilience Engineering

Securing national critical systems.

Mission Systems Engineering

From design to operational capability.

Applied Research Capability

Translating research into capability.

Some of our partners and customers

Australian Crime Commission Department of Foreign Affairs and Trade Geoscience Australia Attorney-General's Department Family Court of Australia Department of Defence
Australian Research Council UNSW Sydney RMIT University Deakin University Optus

Australian Research Council‑backed research partnership formed by Difiza, RMIT, UNSW and Deakin to redefine cyber‑physical systems resilience.

ARC‑backed research partnershipActive
Australian Research Council RMIT University UNSW Sydney Deakin University
Capabilities

Research and Innovation

Explore our research

At Difiza, we drive applied cybersecurity research engineered to build resilience into complex cyber-physical systems across critical infrastructure, defence, and enterprise environments. By collaborating with leading universities and national research initiatives, we develop intelligent resilience frameworks, integrate threat intelligence into system design, and advance security-by-design practices.

Our research spans the full spectrum of technology readiness from foundational models to operational platforms, ensuring rapid translation into measurable, real-world impact. Through active partnerships with Australian universities on cutting-edge AI and cybersecurity challenges, our research directly enhances our delivery methodologies and helps strengthen sovereign capability across the cyber defence domain.

Technology readinessConcept → operational capability
TRL 1–3Foundational research
TRL 4–6Applied research & prototyping
TRL 7–9Operational deployment
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Cybersecurity and Cyber Resilience Engineering

Discuss your requirements

We help government, defence and critical infrastructure organisations design, build and assure systems that stay secure, and keep operating when they come under attack.

Cyber Security Strategy and Roadmap

Board-ready cyber strategy, maturity targets and prioritised investment roadmaps aligned to your mission and risk appetite.

StrategyMaturity

Security Architecture

Business-driven security architecture where every control traces back to a business requirement, from concept through to component design.

SABSANIST

Compliance and Assurance

Attain and maintain compliance against Australia’s protective security and cyber frameworks, including Essential Eight maturity uplift.

PSPFDSPFISM

Cyber Resilience Engineering

Resilience engineered into system architecture, design and lifecycle processes, so systems maintain mission capability even when compromised.

OT / ICSCyber-physical

AI-Informed Defence

AI-driven threat intelligence and analytics that detect, prioritise and respond to emerging threats faster, mapped to real adversary behaviour across IT, OT and space systems.

AI / MLMITRE ATT&CK

Training and Capability Uplift

Blended training that helps your teams meet their compliance and security responsibilities effectively and efficiently.

TrainingWorkforce

Also deliveringEnterprise Architecture and Transformation·Secure Software Development

Systems Engineering

Discuss your program

Control over complexity, at sea, in the air and on land

As Defence programs grow in scale and sophistication, so does the risk of integration issues, cost overruns and capability that falls short of operational need.

Systems engineering is the discipline that connects program management to engineering delivery. It keeps the whole capability in view, manages change and complexity systematically, and removes late surprises, which is why we support Navy, Air Force and Army programs across the full capability lifecycle.

Integrated services across the capability lifecycle

Our engineers develop operational and support concepts, define architectures, manage requirements from capture through to evidence-based test and evaluation, and run configuration, change and integration control, aligned to ISO/IEC/IEEE 15288 and the INCOSE Systems Engineering Handbook.

Model-based, secure by design

We apply Model-Based Systems Engineering (SysML) to give every stakeholder one authoritative view of the system, and we trace security and resilience requirements alongside mission requirements, so cyber assurance is engineered in, not reconciled at the end.

Our domains

Maritime platforms

Surface combatants, submarines and support vessels bring combat, platform and communications systems together in a confined, safety-critical environment. We engineer those interfaces so the ship fights, floats and communicates as one system.

  • Combat and mission system integration
  • Platform management and control systems
  • Maritime C4ISR and communications
  • Seaworthiness evidence and assurance

People

Talk to our workforce team

Security-cleared and clearance-eligible specialists for Defence, government and critical infrastructure, engineers and consultants who already understand the frameworks, systems and environments they will work in.

Every person we put forward has been assessed by the practitioners who do this work every day, so you get capability you can trust from day one, not just a CV.

Roles we place
Cyber security specialistsSecurity architectsSystems engineers (INCOSE)Governance, risk & assuranceProgram & project managersBusiness analystsOT / ICS security engineersCloud security engineers

Why Difiza People

  1. 01
    Cleared talent specialists

    A focus on security-cleared and clearance-eligible professionals for Defence, national security and government programs.

  2. 02
    Engineers assess engineers

    Every candidate is technically interviewed by a practising Difiza engineer or consultant who knows the role.

  3. 03
    Niche skills on demand

    The hardest roles to fill: cyber, security architecture, systems engineering, governance and assurance.

  4. 04
    Right fit, not just right skills

    We match on capability and on how a person will work within your team, culture and operating environment.

Training

Plan your training needs

Practitioner-led cyber security, engineering and assurance training for teams working in Defence, government and regulated environments.

Training is delivered through the Australian School of Cyber Security Engineering (ASCSE), a Difiza company. Courses are shaped by the same programs we support, so teams learn how to interpret security requirements, make defensible decisions and prepare the evidence needed for assurance and accreditation, not just how those requirements are written in policy.

Practitioner-led training+Consulting support+Workforce capability uplift
Strategic track
For leaders and decision-makers

Senior leaders, program managers, architects and governance stakeholders.

  • Cyber risk and accountability
  • Governance frameworks
  • Decisions during delivery and accreditation
Tactical track
For engineers and delivery teams

Cyber analysts, engineers and teams who implement and engineer secure systems.

  • Operational cyber security
  • Secure engineering practice
  • Applied security implementation

Learning with ASCSE

Security-cleared trainers

Years in Defence and critical infrastructure cyber security, in Australia and overseas, some hold PhDs.

Guest speakers

Knowledge leaders who have led complex programs across all security classifications.

Research-led courses

The latest industry and academic research, case studies and in-class interaction.

Companion app

Industry updates, bite-size learning and ask-the-expert support after the course.

When organisations engage us

  • Preparing for accreditation or assurance review
  • Establishing new delivery teams
  • Onboarding staff into security-sensitive roles
  • Transitioning security responsibilities to internal teams
  • Uplifting workforce capability across programs

Training is in person and scenario-based, on site or alongside your teams. Start with a Training Needs Analysis and we will shape a program around your roles, systems and frameworks.

Sectors

Where failure is
not an option.

Environments where disruption carries operational and national consequences.

Critical Infrastructure

Energy, water, transport and communications under the SOCI Act.

Defence & National Security

DSPF‑aligned engineering for Defence and DISP industry.

Government

Commonwealth and state agencies meeting PSPF and ISM obligations.

Space & Aerospace

Spacecraft and ground segment security informed by SPARTA.

Enterprise

Complex digital estates navigating transformation securely.

Assurance frameworks

Fluent in the frameworks Australia runs on.

From Commonwealth protective security policy to adversary‑informed threat models for space systems, we engineer controls that hold up to assessment and to real attackers.

L1 · GOVERN

Policy & protective security

Accountability, risk appetite and security governance.

PSPFDSPF
L2 · CONTROL

Controls & compliance

Technical and procedural controls, mapped and evidenced.

ISMNIST
L3 · ARCHITECT

Business‑driven architecture

Traceable from business attributes to components.

SABSA
L4 · THREAT

Adversary‑informed defence

Validated against real tactics, techniques and procedures.

ATT&CKSPARTA
Approach

Why Choose Difiza

Designing, deploying, and sustaining secure systems across critical infrastructure is a complex engineering challenge. Public and private sector organisations must ensure their systems remain resilient, defensible, and aligned to mission objectives in environments where disruption has significant operational and national consequences.

Weak architecture, fragmented controls, and delayed security integration create systemic risk, increase cost, and expose organisations to compromise, failure, and regulatory pressure.

Difiza addresses this challenge through an engineering led approach that integrates cybersecurity, enterprise architecture, and systems engineering.

We deliver security by design across the full system lifecycle, ensuring confidentiality, integrity, and availability are embedded from the outset.

Our strength lies in combining researchers and engineers within a single delivery model.

Our researchers develop advanced methods in cyber resilience, system modelling, and threat intelligence integration.

Our engineers translate these into architectures, platforms, and deployable solutions that perform in real world environments.

01

This tight coupling between research and engineering ensures innovation is practical, validated, and operational.

02

Our capability spans critical infrastructure, defence, and complex enterprise systems.

We apply research driven insights, engineering discipline, and proprietary platforms to provide continuous visibility of cyber posture and enable informed, risk based decision making.

03

Difiza's team identifies systemic risks early, validates designs against real world threat conditions, and ensures systems remain resilient under stress.

We do not just assess security, we engineer it into systems that must perform when failure is not an option.

Security by design,
across the full lifecycle.

Confidentiality, integrity and availability are embedded from the outset, not bolted on before go‑live.

01

Discover

Mission context, crown jewels and systemic risk identified early.

PSPF · DSPF
02

Architect

Business attributes traced to controls and components.

SABSA · NIST
03

Engineer

Platforms and controls built to perform in the real world.

ISM · Essential Eight
04

Validate

Designs tested against realistic adversary behaviour.

ATT&CK · SPARTA
05

Sustain

Continuous visibility of posture for risk‑based decisions.

NIST CSF · ISM
Vantage · AI-enabled crisis simulation

Crisis simulation for the 21st century.

Replace static, paper-based exercises with realistic, high-pressure decision rehearsal. Vantage immerses your team in a live information environment that reacts to every choice they make.

Explore Vantage Book a demo
  • Build scenarios in hours
  • Sovereign & on-premise options
  • Nothing touches your live systems
Vantage Ops Room during Operation Tidebreak, showing public confidence, checkpoints, action points and developments by channel

Built for every sectorGovernment & agencies·Defence & security·Critical infrastructure·Corporate & finance·Aviation & transport·Emergency management

vantage.difiza.com
Contact

Let's work
together.

Strengthen your cyber resilience and protect your critical systems with Difiza.

Contact us

Canberra HQ

490 Northbourne Avenue
Dickson ACT 2602, Australia
--:--AEST

Kuala Lumpur

27478, Jalan Changkat Permata
Taman Permata, 53300 Kuala Lumpur, Malaysia
--:--MYT

London

11 Burford Road, Unit 115
Stratford, E15 2ST, London, UK
--:--UK