Post-Quantum Security: What Organisations Should Be Doing Now

Digital security is about to change in a way most organisations aren’t prepared for.

A future cryptographically relevant quantum computer (CRQC) will be able to break many of the encryption methods used on today’s internet.

This is not a distant, theoretical concern.

Government bodies such as the Australian Signals Directorate (ASD) and major technology providers, including Google, have now established clear timelines for transitioning to post-quantum cryptography (PQC).

For organisations responsible for long-term data, public trust, and operational continuity, the question is no longer if this transition will occur, but how prepared you are.

Why This Matters Now

The risk is not limited to future systems.

1. Current encryption may already be at risk

Sensitive data encrypted today can be:

  • Intercepted
  • Stored
  • Decrypted in the future when quantum capability becomes viable

This “store now, decrypt later” model means decisions made today have long-term consequences.

2. Authentication systems are a critical vulnerability

Modern systems rely heavily on:

  • Digital signatures
  • Identity verification
  • Secure authentication flows

These are foundational to:

  • User access
  • Certification systems
  • Financial and transactional systems

If compromised, the impact extends beyond confidentiality to trust and system integrity.

3. The transition has already begun

  • Browsers, cloud platforms, and operating systems are beginning PQC adoption
  • Standards bodies are formalising new cryptographic approaches
  • Vendors are introducing PQC-ready solutions

This shift won’t happen on your timeline. You’ll be reacting to it.

The Timeline You Should Be Working To

The ASD provides a clear transition horizon :

  • By the end of 2026 → Transition plan defined
  • By the end of 2028 → Migration underway (starting with critical systems)
  • By the end of 2030 → Transition complete

These milestones account for both technical uncertainty and organisational complexity.

Recent guidance from Google suggests that progress in quantum computing may further accelerate this timeline.

If you’d like a structured overview of how to approach this transition, I’ve put together a short leadership brief you can download here.

👉 https://zeropointdevelopment.com/go/resource/post-quantum-security-leadership-brief

Where Your Organisation Is Exposed

Most organisations are more exposed than they realise. Especially in areas they don’t usually think about.

Common areas of dependency include:

  • Web applications (TLS / HTTPS)
  • Authentication systems (logins, SSO, APIs)
  • Cloud infrastructure and SaaS platforms
  • Data storage and backups
  • Third-party integrations

Each of these may rely on cryptographic systems that will require transition.

A Practical Framework for Action

The ASD outlines a structured approach using the LATICE model.

1. Locate

Identify where your systems are using cryptography.

This includes:

  • Applications
  • Infrastructure
  • Vendor platforms

A Cryptographic Bill of Materials (CBOM) is a useful starting point.

2. Assess

Evaluate:

  • Sensitivity of data
  • Business impact if compromised
  • Regulatory and compliance exposure

3. Triage

Prioritise systems based on:

  • Data value
  • Exposure risk
  • Operational importance

Focus first on:

  • Identity systems
  • High-value data
  • Public-facing services

4. Implement

Plan the transition using:

  • Vendor-supported solutions
  • Standardised cryptographic libraries
  • Phased migration approaches

Avoid custom or experimental implementations.

5. Communicate and Educate

Ensure:

  • Stakeholders understand the transition
  • Internal teams are prepared
  • Governance structures are in place

What This Means for Decision-Makers

Preparing for post-quantum security is not a technical upgrade. It is a governance issue.

You should be asking:

  • Do we know where cryptography is used in our systems?
  • Which vendors are responsible for our security posture?
  • What data do we hold that must remain secure in the long term?
  • Who owns this transition internally?

Organisations that delay these questions will face compressed timelines and reactive decisions later.

What Not to Do

  • Do not attempt to implement cryptography internally
  • Do not adopt unverified or non-standard solutions
  • Do not assume vendors will handle everything without oversight

The transition to PQC must be coordinated, deliberate, and governed.

What This Means for WordPress-Based Systems

Many organisations rely on WordPress as part of their digital infrastructure.

While WordPress doesn’t handle encryption directly, it sits within a broader ecosystem that relies heavily on encryption and authentication technologies, which will be affected by the transition to post-quantum cryptography.

1. WordPress security is largely infrastructure-driven

WordPress applications rely on:

  • Web hosting environments
  • TLS/HTTPS encryption
  • Content delivery networks (CDNs)
  • Third-party integrations and APIs

These layers are responsible for:

  • Encrypting data in transit
  • Verifying identities
  • Securing communications between systems

As these underlying technologies transition to post-quantum cryptography, WordPress-based systems will be directly affected.

2. Authentication systems are a key area of exposure

WordPress environments commonly include:

  • User login systems
  • Membership and LMS platforms
  • API integrations
  • Single sign-on (SSO) connections

These rely on digital signatures and authentication protocols that are expected to change as part of the post-quantum transition.

For organisations managing:

  • Training platforms
  • Certification systems
  • Restricted-access content

…the integrity of authentication is critical to maintaining trust.

3. Long-lived data requires careful consideration

WordPress is often used to manage and store:

  • User records
  • Learning progress and certifications
  • Member data
  • Contact and form submissions

If this data is sensitive and retained long-term, it may be exposed to “store now, decrypt later” risks.

This makes:

  • Data minimisation
  • Retention policies
  • Secure storage practices

important considerations today, not just in the future.

4. Most of the transition will be vendor-led

The shift to post-quantum cryptography will primarily be handled by:

  • Hosting providers
  • Cloud platforms
  • Browser vendors
  • Security and CDN providers

WordPress itself will not require direct modification in most cases.

However, organisations remain responsible for:

  • Choosing the right vendors
  • Understanding their security roadmap
  • Ensuring systems can evolve without disruption

5. The real risk is not WordPress. It’s complacency around how it’s managed

The greatest risk is assuming that platform-level decisions do not require oversight.

WordPress systems are often:

  • Business-critical
  • Integrated with multiple services
  • Maintained over long periods of time

Without clear visibility into how these systems are secured, organisations may struggle to respond effectively as cryptographic standards evolve.

Where Zero Point Development Fits

For organisations using WordPress as part of their digital ecosystem, post-quantum readiness is not about changing platforms. It is about understanding how those platforms are supported, secured, and governed over time.

At Zero Point Development, I work with organisations to:

  • Map and understand their digital systems and dependencies
  • Identify areas of long-term security risk
  • Ensure infrastructure and platform decisions support future transitions
  • Provide ongoing strategic oversight as technology evolves

The goal is simple. WordPress systems that remain secure, maintainable, and aligned with organisational risk and governance requirements.

Conclusion

The transition to post-quantum cryptography represents a fundamental shift in digital security.

For organisations that prioritise trust, continuity, and long-term data protection, early planning is not optional. It is a strategic responsibility.

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