Protect Your Critical Data Today. Prepare for Tomorrow.

Trusted, quantum-resistant private connectivity for critical data in transit.

The Quantum Risk Starts Before Quantum Computers Arrive

If your organisation currently handles data that will still be critical into the 2030s, it is at risk from quantum threats today. Adversaries can capture encrypted data in transit now and decrypt it in the future as quantum capabilities mature - a strategy known as ‘store now, decrypt later’. 

Your Quantum Threat Window is the period between today and the point when a critical data flow receives quantum-resistant protection. While that window remains open, encrypted information can potentially be collected and targeted for future decryption.

Data Centre Connectivity is a Key Part of the Security Perimeter

Security investment has traditionally concentrated on applications, identities and endpoints. Those controls remain essential, but growing volumes of sensitive data now move between data centres, cloud environments and other geographically separated locations.

Data Centre Interconnects (DCIs) are attractive targets for bad actors because they concentrate large volumes of high-value data on physical routes that often sit outside an organisation’s direct control. A passive fibre interception can copy that traffic without interrupting the service or triggering the alerts security teams usually rely on.

Introducing Quantum Shield

Quantum-Resistant Private Connectivity Designed to Protect Critical Data 

Quantum Shield delivers trusted, quantum-resistant private connectivity that protects your most critical data against current and emerging cybersecurity threats. Offered as an additional security layer to our Private Connect MOFN solution, it provides:

  • Dedicated infrastructure: private, high-capacity optical connectivity designed for greater security, control and visibility.

  • Quantum-resistant encryption: line-rate Layer 1 encryption with post-quantum key exchange and crypto-agility.

  • Continuous fibre monitoring: Advanced Link Monitoring (ALM) detects and locates potential interference with the fibre.

Developed in partnership with Adtran, Quantum Shield is the only quantum-safe enabled solution on the market that helps organisations strengthen cyber resilience, protect business-critical communications and prepare for evolving security and regulatory requirements with confidence.

Is my Organisation at Risk?

Quantum risk is most urgent where data remains valuable for many years, disclosure would cause serious harm, and network performance cannot be compromised. All organisations handling sensitive data are at risk, however, industries including Financial Services, Healthcare and Lifesciences and Government and Public Sector are particularly high-priority.

Financial institutions need highly resilient networks that protect payment systems, trading platforms, financial and customer data against cryptographic threats.

Where it applies:

  • Banking and capital markets

  • Payment services and fintech

  • Insurance

  • Asset and wealth management

What matters most:

  • Protecting payment systems, trading platforms and financial data in transit.

  • Meeting DORA digital operational resilience requirements end-to-end.

  • Maintaining the ultra-low latency trading and settlement systems depend on.

  • Preparing cryptographic estates now for the shift to post-quantum standards.

Governments are Translating Risk into Action

Governments and regulators are not waiting for certainty about when a cryptographically relevant quantum computer will arrive. Their guidelines are based on two facts: store-now, decrypt-later creates a risk today, and replacing vulnerable cryptography across complex technology estates will take time. 

euNetworks is here to support you in preparing for evolving cybersecurity regulations and requirements.

  • The EU roadmap requests that by the end of 2026 national roadmaps should be established and planning for high and medium-risk use cases should be underway. 

  • By the end of 2030, the PQC transition for high-risk use cases should be completed, along with planning and pilots for medium-risk use cases, and quantum-safe software and firmware upgrades enabled by default.

  • By the end of 2035, the PQC transition should be completed across the remaining risk categories.

Is your Quantum Threat Window Open?

Your quantum threat window is the time between today and the point when a critical data flow is protected by quantum-resistant cryptography. The urgency depends on how long the data must remain confidential, not only on when quantum computing matures.


To begin your quantum-safe migration, identify where long-lived sensitive data moves, how long it must remain confidential and which routes require stronger assurance. 


  • What data must remain confidential for years?

  • Where does that data move between locations?

  • Which routes need encryption and physical monitoring?