Quantum-Safe: how to protect your Network without rebuilding it

Italtel’s Q-Secure solution, powered by Quantum Bridge Technologies, enables post-quantum security across digital infrastructures

Protecting networks for the post-quantum era without redesigning them from scratch can be considered one of the most pressing cybersecurity challenges today.

As quantum computing advances and attention to digital infrastructure resilience continues to grow, enterprises and organizations are being called upon to rethink how they ensure the long-term security of data and communications.

In this context, the challenge is to adopt advanced cryptographic technologies without having to redesign existing network infrastructures from the ground up.

The good news is that preparing for the future does not necessarily mean disrupting the present. This belief is at the core of the approach developed by Italtel and Quantum Bridge Technologies: making quantum safety deployable, scalable, and sustainable while preserving existing infrastructure investments.

Quantum Safety: why Post-Quantum Security is entering Enterprise strategies

Quantum computing promises to revolutionize data processing, but it also introduces a profound shift in the security landscape, which now faces a dual challenge: the potential compromise of cryptographic algorithms currently considered secure, and the uncertainty surrounding their long-term evolution and resilience (cryptographic obsolescence).

Organizations must address three key challenges:

• Protecting data that must remain secure over time
• Avoiding lock-in to a single cryptographic scheme
• Managing the transition toward standards that are still evolving

In the quantum era, this has led to the emergence of the concept of quantum safety: the ability to ensure secure communications even in the age of quantum computers through adaptive and crypto-agile architectures.

Financial data, intellectual property, critical infrastructure information, industrial traffic, and strategic communications must remain protected for years—if not decades.

The risk is that encrypted data captured today could be stored and decrypted in the future using the computational capabilities of quantum computers. This is why enterprises, infrastructure operators, and public organizations are already evaluating quantum-safe technologies.

There is, however, a significant challenge: many post-quantum security solutions require dedicated infrastructure, specialized hardware, proprietary optical networks, and substantial modifications to existing environments, resulting in increased costs, complexity, and deployment times.

This is where the collaboration between Italtel and Quantum Bridge Technologies (QBT) comes into play, offering an innovative approach to post-quantum security.

The Italtel–QBT approach: accessible and scalable Quantum Safety without Network redesign

Q-Secure is Italtel’s quantum safety solution, developed in collaboration with QBT, designed to address this challenge through a pragmatic and innovative approach: bringing quantum safety to existing infrastructures without disruptive network changes.

Q-Secure enables organizations to introduce post-quantum security gradually, while remaining fully compatible with existing network environments and designed to evolve over time without requiring a complete infrastructure overhaul. This significantly reduces complexity, costs, and operational impact.

At the core of Q-Secure is a software-defined, crypto-agile model that allows organizations to combine multiple cryptographic technologies and security paradigms—when, where, and as needed—in a flexible and customizable way:

• PQC (Post-Quantum Cryptography) based on NIST-standardized algorithms, leveraging the robustness of mathematically secure cryptographic schemes
• DSKE (Distributed Symmetric Key Establishment), providing resilient key distribution security
• QKD (Quantum Key Distribution), based on the principles of quantum physics and requiring dedicated infrastructure

All of these technologies can be deployed within hybrid architectures tailored to specific customer requirements.

The advantage is significant: with Q-Secure, post-quantum security can be introduced immediately and incrementally across existing switches, firewalls, and enterprise environments, while ensuring future adaptability.

The distinctive value of Q-Secure

The first key element of Q-Secure is crypto-agility—the ability to adapt cryptographic mechanisms over time without redesigning applications or infrastructures.

This enables organizations to:

• Adopt post-quantum security today
• Evolve seamlessly toward future standards
• Integrate different technologies (PQC, DSKE, and QKD) in a coherent way

In this sense, security is no longer a one-time project but an ongoing evolutionary process.

The second key element of Q-Secure is its ability to reduce systemic cyber risk and provide end-to-end protection—capabilities that become increasingly important as digital transformation expands the potential attack surface.

Modern digital infrastructures are characterized by:

• Strong interconnection between cloud and on-premises environments
• Widespread use of APIs and machine-to-machine communications
• Increasing automation and growing adoption of artificial intelligence
• Concentration of critical services around a limited number of trust points

In this environment, where cyber risk is inherently systemic, Q-Secure addresses three fundamental dimensions:

1. Communication Protection – reducing the risk of interception and compromise through secure key management and cryptographic channels.
2. Trust Distribution – reducing dependency on single points of trust through distributed architectures that increase overall resilience.
3. Continuous Evolution – mitigating cryptographic obsolescence by enabling algorithms and security models to be updated over time.

Rather than replacing existing networks, Italtel addresses the challenge of securing them, enabling them to evolve while maintaining sustainable costs. From this perspective, quantum safety is not a destination but an ongoing journey toward digital resilience.

Want to learn more about quantum safety for telecommunications networks and digital infrastructures?

Discover how post-quantum security approaches are evolving and explore the challenges facing operators and enterprises in our dedicated article: Toward Quantum-Safe Networks: the new frontier of Telecom Security