One Beyond partnered with Quantum Security Technology to engineer the world’s first enterprise-grade quantum-resilient VPN from scratch.

Leveraging cross-platform C#/.NET Core and cloud deployment to meet demanding security and scalability requirements

At a glance

Groundbreaking Development

Built the world’s first enterprise-grade quantum-resilient VPN from the ground up.

Future-Proof Security

Designed to protect enterprise networks against emerging quantum computing threats.

Cross-Platform Flexibility

Developed in C#/.NET Core for fast, scalable deployment across systems.

Foundation for Growth

Laid the groundwork for future consumer-facing mobile VPN products.

"One Beyond came across very strongly as a development company capable of managing projects spanning all kinds of capabilities, and at a highly complex level."

Hugh B, Security Architect, QST-VPN

About QST-VPN

Quantum Security Technology (QST) is a cybersecurity company specialising in quantum-resilient solutions for enterprises. Their flagship product, QST-VPN, is the world’s first enterprise-grade VPN designed to protect against emerging quantum computing threats. QST is committed to safeguarding businesses with cutting-edge technology built for the future of security.

The Challenge

QST needed to develop a groundbreaking VPN that could withstand future quantum computing attacks, requiring cutting-edge cryptography and seamless cross-platform performance, all while meeting enterprise-grade security and scalability demands.

The Solution

One Beyond built a fully custom, quantum-resilient VPN using C#/.NET Core, delivering robust security, cross-platform compatibility, and scalable cloud deployment—positioning QST at the forefront of next-generation enterprise cybersecurity.

A closer look at features and benefits

Quantum-Resilient Encryption protects enterprise data against future quantum computing threats

Cross-Platform Compatibility runs smoothly on multiple operating systems for versatile deployment

Enterprise-Grade Security meets rigorous security standards required by large organisations

Scalable Cloud Deployment easily scales to accommodate growing user bases and network demands

Custom-Built Solution tailored to QST’s unique needs for optimal performance and security

Foundation for Consumer Expansion designed to support future development of consumer-facing VPN apps

"One Beyond have proven their ability to rise to the challenge and develop intricately complex, next-generation security products, with the range and depth of skills and technical knowledge and the support to make it all possible. We look forward to building on this successful partnership."