Singtel has launched its Hybrid Quantum-Safe Networks (QSN), the region’s first, that integrates Quantum Key Distribution (QKD) with Post-Quantum Cryptography (PQC). QKD is a secure method for distributing encryption keys only known between shared parties, while PQC is a new generation of encryptions algorithms that are engineered to resist quantum attacks. This layered approach delivers cost-efficient, flexible and globally extensible protection against emerging quantum threats.
Singtel’s Hybrid QSN extends protection beyond core data centres and mission-critical sites to branch offices, remote facilities, cloud environments and overseas operations. To extend QKD-protected critical links, hybrid QSN uses PQC-based key distribution to ensure quantum-safe protection to a broader footprint. The hybrid architecture enables enterprises to secure all parts of their organisation.
This marks the next phase of Singtel’s efforts to strengthen Singapore’s position as a quantum-safe nation.
Ng Tian Chong, Chief Executive Officer, Singtel Singapore, said, “Quantum computing represents one of the greatest opportunities of this decade – from curing diseases to predicting climate change and boosting productivity – but it also presents one of its biggest risks. It could break today’s encryption standards, the very foundation of digital trust in our connected world. As a critical infrastructure services provider, Singtel has been helping enterprises anticipate, defend and manage emerging threats so they can innovate and scale securely. Our Hybrid Quantum-Safe Network gives enterprises a practical and scalable way to protect their most sensitive data while preparing for what’s next.”
He added, “By delivering the region’s most flexible and extensible quantum-safe model, we’re strengthening Singapore’s position as a leader in digital resilience and building digital trust. We encourage businesses exploring ways to safeguard and future-proof their operations in the digital economy to reach out to us.”
Singtel’s Hybrid QSN provides an array of flexible deployment options and service models that leverages ID Quantique’s (IDQ) QKD and key management platform to securely distribute encryption keys, as well as Palo Alto Networks’ PQC solution, a software-based feature that adds quantum-safe encryption to existing infrastructure which helps enterprises to adopt a more proactive and accelerated approach to quantum readiness.
Singtel innovative QSN solutions allow quantum-safe key distribution even across conventional networks and in locations without QKD hardware.
Singtel also signed a Memorandum of Understanding with Palo Alto Networks to extend Singtel QSN through Palo Alto Networks’ PQC solution. Through this collaboration, Singtel will offer Hybrid QSN as a managed security service.
Simon Green, President, Asia-Pacific and Japan, Palo Alto Networks said, “The threat of quantum computing is very real, and our customers are looking for a practical way to help future-proof their networks against this emerging risk. By bringing together our advanced quantum security solutions and Singtel’s hybrid quantum-safe network, we’re providing a scalable and flexible way for enterprises to extend critical protection from their core data centres to their remote and international locations. This collaboration gives organisations a powerful, software-based solution to defend their data today and well into the quantum era.”
Securing critical industries and international operations
Singtel’s Hybrid QSN provides unique advantages for industries that need to secure sensitive data across both central and distributed sites.
Healthcare: QKD can protect hospitals and data centres, while PQC extends protection to polyclinics and mobile clinics.
Financial services: QKD secures headquarters and trading systems, while PQC distributes keys to branches, ATMs, and kiosks.
Critical infrastructure: QKD protects utilities, power grids and transport control centres, while PQC secures distributed assets such as substations, reservoirs and MRT stations.
The hybrid architecture applies QKD to high-bandwidth, mission-critical connections where physics-based key exchange delivers the highest level of protection, while PQC-based software distribution provides the flexibility and scalability to secure remote, mobile and cross-border locations. Singtel’s QSN platform validates and manages both sets of keys, with successful integration via Palo Alto Networks’ firewalls.
By overcoming the distance limitations that applies to fibre-based QKD, Singtel’s Hybrid QSN extends quantum-safe protection internationally. This is in line with Singtel’s mission to enable multinational corporations and government agencies to secure critical data wherever they operate, future-proofing their operations.
Building a quantum-safe digital future
Singtel has been steadily advancing its quantum-safe capabilities since the launch of its QSN with IDQ in 2023. Since then, it has expanded its ecosystem of solutions and expertise through partnerships with industry leaders Palo Alto Networks and Fortinet.
