euNetworks and Adtran have announced a new private connectivity service, Quantum Shield, aimed at securing data moving between European data centres as organisations prepare for post-quantum threats and tighter regulatory expectations.
The companies said Quantum Shield combines quantum-resistant encryption with continuous monitoring across the optical layer, with encryption applied automatically to data in transit. The service is positioned for enterprises with high security and performance requirements, including customer-controlled encryption, and is framed as supporting compliance obligations under European regulations such as the Digital Operational Resilience Act (DORA) and the NIS2 Directive.
The launch comes amid increased focus in Europe on protecting data in transit and “crypto-agility” as guidance and standards for post-quantum cryptography continue to develop. The release cited the European Commission’s coordinated roadmap for transition to post-quantum cryptography, which targets migration of high-risk and critical infrastructure environments by 2030.
Quantum Shield will be offered as an additional security layer for euNetworks’ Private Connect MOFN service, which provides private managed network infrastructure. According to the announcement, the added layer includes quantum-resistant encryption at Layer 1 over dedicated fibre infrastructure, alongside capabilities intended to detect and locate fibre-tapping events.
The infrastructure is built on Adtran’s FSP 3000 optical transport platform and uses Adtran’s ALM solution for optical and fibre plant monitoring. The companies said the post-quantum cryptography used is aligned with US National Institute of Standards and Technology (NIST) standards.
“Data centre connectivity sits at the heart of our customers’ operations, particularly in environments where security and resilience are non-negotiable,” said Marisa Trisolino, CEO of euNetworks. “We’re committed to providing customers with connectivity that meets increasingly stringent security requirements and chose to partner with Adtran because they bring deep expertise in optical networking and a practical understanding of how private infrastructure is built and operated at scale. Together, we’re providing connectivity that combines strong security, predictable performance and clear visibility into the underlying network, while customers retain control over how their data is encrypted. As customer expectations continue to evolve, having trusted partners and proven solutions is essential to supporting long-term digital growth across Europe.”
Christoph Glingener, CTO of Adtran, said the deployment reflects a shift in how “critical connectivity” is being built, combining “quantum-resilient encryption” with “real-time fibre monitoring” while maintaining performance and scalability.
