Protecting Data in Transit in the Quantum Era
Artificial Intelligence, cloud computing, and quantum technologies are changing the digital world faster than ever before. At the same time, governments are increasing investments in critical infrastructure, while telecommunications operators continue expanding the optical networks that have become the backbone of our global economy. These developments create tremendous opportunities, but they also introduce new security challenges that require us to rethink how we protect data in transit.
For decades, cybersecurity has focused primarily on cryptography. The principle has been simple: stronger encryption provides stronger protection. That principle remains valid, but the emergence of quantum computing is forcing the industry to look at the problem from a broader perspective.
One of the most important challenges is the growing awareness of the Harvest Now, Decrypt Later (HNDL) threat. Instead of trying to decrypt sensitive information today, an attacker only needs to intercept encrypted traffic and store it. As quantum computing continues to advance, information that remains valuable for years could eventually become accessible if today's public-key cryptography is broken.
This changes the conversation. The challenge is no longer limited to protecting encryption algorithms. It is also about protecting information while it is moving across the network.
The industry's response has been the rapid development of Post-Quantum Cryptography (PQC), an essential step toward replacing today's public-key cryptography with quantum-resistant alternatives. PQC will become a fundamental building block of future security architectures.
At the same time, an important question deserves greater attention. If encrypted traffic can still be intercepted and stored today, should future network security rely only on stronger cryptography, or should it also reduce the opportunity to capture sensitive information in the first place?
The future of communications infrastructure will require multiple complementary layers of protection, each addressing a different aspect of the security challenge. Cryptography will continue protecting data. Protecting data while it is being transported across optical infrastructure should also become an increasingly important element of future security architecture.
This broader perspective has guided CyberRidge throughout the past four years. The company's work has focused on developing Photonic Layer Security (PLS), an innovative approach to protecting data in transit at the optical layer. The objective has always been to complement cryptographic protection by addressing a different part of the security challenge: reducing the ability of an unauthorized party to capture meaningful digital information while it is moving across optical infrastructure. Rather than replacing Post-Quantum Cryptography, Photonic Layer Security is designed to complement it as part of a broader quantum-resilient security architecture.
This represents a natural evolution of network security. Today's cybersecurity does not rely on a single protection mechanism. Organizations already combine firewalls, identity management, endpoint protection, network monitoring, encryption, and many other technologies to reduce risk. Protecting data at the physical layer should become another part of this layered approach.
Technology alone is not enough. Protecting national communications infrastructure also requires the ability to manufacture at scale, integrate into existing networks, deploy nationwide, provide field support, and support customers throughout the entire lifecycle. As the United States accelerates its quantum-readiness initiatives, building this future will require strong partnerships, operational readiness, and close collaboration between telecommunications operators, cloud providers, systems integrators, manufacturing partners, and government agencies. CyberRidge is now strengthening both its technology and the operational capabilities needed to support large-scale deployment of Physical Layer Security as part of future quantum-resilient communications infrastructure.
History has shown that every major technological transition creates an opportunity to rethink long-standing assumptions. Quantum computing represents another one of those moments. It is an opportunity to build a broader and more resilient security architecture that protects critical infrastructure at multiple layers.
The transition has already begun. Organizations that prepare today will be better positioned for tomorrow.