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Network Segmentation Prevents Lateral Movement

Cybersecurity / Post-quantum cryptographyUNDERSTAND YOUR EXPOSURE.
VALIDATE YOUR POST-QUANTUM TRANSITION.

ONE JOURNEY. CONNECTED EVIDENCE.Discover → Map → Plan → Test → Assure
Is your organisation ready for post-quantum cryptography? Build a clear picture of your cryptographic dependencies and a practical plan for what comes next.
THE CRYPTOGRAPHIC SHIFT

Why PQC readiness matters now

The risk is the future. The preparation starts today.

A sufficiently powerful quantum computer could compromise widely used public-key cryptography. Sensitive information captured today may also face a future “harvest now, decrypt later” risk.

Migration takes time. Understanding your exposure now helps you make informed technology, procurement and risk decisions.

 

Stronger cryptography changes more than security

Introducing post-quantum cryptography can affect connection establishment, processing overhead and network performance. A successful transition needs to preserve the services your business relies on.

Testing proposed changes before production helps you identify compatibility issues, understand capacity requirements and make informed deployment decisions.

2026
Refine your transition plan
Know your dependencies and priorities.
2028
Commence your transition
Move from planning into implementation.
2030
Complete your transition
Validate outcomes and maintain assurance.

Australia’s transition is taking shape

ASD recommends a refined PQC transition plan by the end of 2026, commencement of transition by the end of 2028 and completion by the end of 2030.

APRA has called on regulated entities to start mapping cryptographic dependencies across their systems, data and third-party providers, including long-lived data and critical infrastructure.

THE MATRIUM APPROACH

One journey. Connected evidence.

A practical, staged approach that connects discovery findings to migration priorities, testing and ongoing assurance.

01

Discover

Identify cryptographic protocols, communications and potentially vulnerable key exchanges across observed network traffic, using existing visibility infrastructure where possible.

Evidence of observed exposure
 
02

Map

Connect observations to the applications, infrastructure and services that depend on them, building the foundations for a Cryptographic Bill of Materials (CBOM).

Dependency and ownership context
 
03

Plan

Use findings and business priorities to compare migration options, map vendor dependencies and set measurable success criteria.

A prioritised migration roadmap
 
04

Test

Test PQC infrastructure for compatibility, connectivity, performance and scalability under realistic conditions before deployment.

Evidence for deployment decisions
 
05

Assure

Validate migration outcomes and continue monitoring for vulnerable cryptographic configurations and newly introduced dependencies.

Ongoing validation of progress
 

DEFINING POST-QUANTUM READINESS

What does being PQC-ready mean?

Post-quantum cryptography uses algorithms designed to resist attacks from both classical and quantum computers. Readiness means understanding where vulnerable cryptography is used, what depends on it and how to transition without compromising business operations.

Cryptography is embedded across applications, firewalls, VPNs, cloud services and infrastructure. Some components may need software updates; others may require replacement or architectural change.

Discovery is the starting point.

Visibility identifies exposure and supports planning. Readiness also requires implementation, testing and ongoing validation. TLS 1.3 alone does not demonstrate that post-quantum cryptography has been negotiated.

Critical evaluation

Five questions to assess your readiness

Start with the evidence you need to turn an emerging risk into an actionable transition plan.

1
Where do we rely on cryptography?

Identify protocols, key exchanges and cryptographic dependencies across your environment.

2
What needs protection for the long term?

Locate sensitive data and critical services whose protection must endure beyond today.

3
What can be upgraded or replaced?

Understand vendor roadmaps, legacy constraints and infrastructure dependencies.

4
Will PQC affect our services performance?

Test PQC’s impact on connection setup, throughput and service performance under realistic traffic - not just connection success.

5
How will we demonstrate progress?

Validate migration outcomes and monitor for residual exposure and new dependencies.

LIFECYCLE COVERAGE

Support at every stage of your transition

Explore how connected evidence supports the decisions ahead.

Make your cryptographic exposure visible

Build an evidence-based starting point by observing encryption in use and connecting findings with application, infrastructure and ownership records.

Discuss a discovery assessment ↗

  • Identify observed protocols and key exchanges
  • Map systems, services and business dependencies
  • Document coverage and inventory gaps

Turn discovery into a practical roadmap

Use your dependency picture to prioritise critical systems, engage vendors and compare upgrade, replacement and architecture options.

Discuss migration planning ↗

  • Prioritise long-lived data and critical services
  • Review vendor readiness and product roadmaps
  • Define a staged transition and test plan

Test before rollout. Validate after change.

Evaluate proposed solutions under representative conditions, then use ongoing observations to check outcomes and identify new dependencies.

Discuss testing and assurance ↗

  • Assess interoperability and performance
  • Test resilience and scalability
  • Monitor remaining cryptographic exposure
PRACTICAL APPLICATION

Where PQC preparation makes a difference

Focus your transition on the systems, data and dependencies that matter to your organisation.

Hybrid & cloud environments

01 / DISCOVERY

Hybrid and cloud environments

Understand cryptography across observed on-premises, cloud and inter-service communications.

 
Long-lived sensitive info

02 / DATA RISK

Long-lived sensitive information

Prioritise data that needs enduring confidentiality and assess its supporting cryptographic dependencies.

 
Third-party & suppliers

03 / DEPENDENCIES

Third-party services and suppliers

Identify reliance on external providers and engage vendors on readiness, timing and migration constraints.

 
Firewalls & VPNs

04 / INFRASTRUCTURE

Firewalls, VPNs and network services

Assess which components can be upgraded and which may need replacement or a revised architecture.

 
Pre-production validation

05 / TESTING

Pre-production validation

Understand how proposed changes affect service interoperability, performance and resilience before rollout.

 
Evidence of migration

06 / ASSURANCE

Evidence of migration progress

Track observable change and identify residual exposure as applications and infrastructure evolve.

 
TECHNOLOGY ENABLEMENT

Build on the environment you have

Matrium works with leading networking, visibility, security and testing technologies to evaluate approaches suited to your existing environment.

We connect network evidence with application and infrastructure context, then test the options that fit your requirements.

Network observations depend on traffic coverage. They should be complemented by application, certificate and cryptographic inventories for assets outside that view.

Understand your exposure

Reveal cryptographic activity across observed network traffic and use that evidence to support dependency mapping, migration priorities and ongoing monitoring.

Evaluate proposed changes

Using VIAVI TeraVM, Matrium can benchmark supported PQC-enabled IPsec and TLS endpoints, helping customers assess performance and interoperability before deployment.

Connect the evidence

Bring discovery findings, business requirements and test results together into a practical transition approach suited to your environment.

A modern, high-tech Cybersecurity Operations Center showing a desk and active monitoring screens displaying real-time security alerts.
TAKE THE FIRST STEP

Start with a PQC readiness assessment

You don’t need to solve the entire PQC transition today. You need to understand where you stand and develop a practical plan for what comes next.

Talk to Matrium about your environment, priorities and the evidence you need to move forward.

Let’s define your starting point

  • • Review your current visibility and known dependencies
  • • Agree assessment scope and coverage
  • • Identify practical priorities and next steps
TALK TO OUR PQC SPECIALISTS ↗

Email sales@matrium.com.au to arrange a conversation.

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COMMON QUESTIONS

Making sense of the transition

Further reading: ASD PQC planning · ASD vendor readiness questions
Guidance checked 22 October 2026.
What would a Matrium PQC test assess?

Depending on your environment and the supported implementation, testing can assess connection establishment, throughput, interoperability and scalability. Matrium works with you to define representative workloads and acceptance criteria aligned with your business requirements.

Why should we test PQC changes before deployment?

Introducing post-quantum cryptography can affect connection establishment, processing requirements and service performance. Testing helps identify compatibility issues and performance constraints before they affect production services.

Our vendor says its product supports PQC. Do we still need testing?

Vendor support is an important starting point. Testing helps establish how a supported product performs with your configurations, connected systems and expected workloads, providing evidence for procurement and deployment decisions.

Does TLS 1.3 mean we are quantum-safe?

No. The protocol version alone does not establish which key exchange was negotiated. You need evidence of the cryptographic algorithms actually in use, alongside an assessment of the wider system and its dependencies.

Can we engage Matrium for one stage?

Yes. Matrium supports targeted discovery, migration planning, infrastructure testing and ongoing assurance. The engagement can start with your most immediate need.

Can network discovery create a complete CBOM?

Network discovery provides evidence for observed communications. A broader Cryptographic Bill of Materials also needs application, certificate, infrastructure and supplier information, including assets and cryptography not visible in network traffic.

Do we need to replace all our infrastructure?

Not necessarily. The right path depends on product support, vendor readiness, performance requirements and dependencies. Some systems may support software upgrades; others may require replacement or architectural change.

Can we compare our current infrastructure with a proposed PQC solution?

Yes. Matrium can help establish a performance baseline and compare supported configurations under consistent test conditions. This helps you understand potential trade-offs and assess upgrade, replacement and capacity requirements.

Can we start testing before completing our cryptographic inventory?

Yes. A targeted test can address an immediate procurement or upgrade decision while broader discovery continues. Findings should feed into your wider transition plan, with the scope and limitations clearly documented.