euNetworks launches new quantum-safe private connectivity service powered by Adtran’s encrypted optical transport technology

Key Terms

quantum-safe technical

Quantum-safe describes encryption methods, protocols and systems designed to remain secure even if powerful quantum computers exist; think of them as locks built to resist a future master key. For investors, quantum-safe technology matters because it protects sensitive data and intellectual property, reduces future compliance and replacement costs, and can lower the risk of disruptive cyber losses or legal liabilities as quantum computing advances.

post-quantum cryptography technical

Post-quantum cryptography is a set of new methods for scrambling data so it stays secure even if powerful quantum computers exist; think of replacing today’s locks with designs that a future high‑speed lockpicker cannot open. For investors, it matters because companies must upgrade systems, meet regulations, and protect customer and trade data—creating costs, competitive advantages, or legal and reputational risks depending on how quickly and effectively they adopt these new security standards.

nist regulatory

National Institute of Standards and Technology (NIST) is a U.S. government agency that creates technical standards, testing methods and best-practice guidance for measurements, technology and cybersecurity. For investors, NIST guidance matters because companies that comply can lower operational and regulatory risk, speed product validation, and build customer and partner trust—similar to using a trusted blueprint that makes a product safer and easier to sell.

dora regulatory

The EU Digital Operational Resilience Act (DORA) is a law that requires banks, asset managers, insurers and other financial firms to strengthen how they prevent, detect and report problems with information technology and third‑party service providers. It matters to investors because it raises standards for cybersecurity and incident disclosure, which can change a firm’s costs, reduce unexpected outages or losses, and make operational risks easier to compare—like forcing buildings to meet safety codes so occupants and insurers can better judge risk.

nis2 regulatory

NIS2 is a European Union cybersecurity law that sets mandatory rules for how many businesses and public organizations must protect their networks, report cyber incidents, and undergo checks. Think of it as a requirement to install stronger locks, keep a log of any break-ins, and show auditors the keys; for investors, compliance affects a company’s legal risk, operating costs and reputation, and can influence future cash flow and valuation.

layer 1 technical

A layer 1 is the base blockchain network that records transactions, enforces the rules, and secures the system — think of it as the main highway on which all other traffic runs. It matters to investors because its performance, fees and security determine how useful and valuable applications and tokens built on top will be; improvements or problems at this foundational level can affect many projects and market value at once.

optical layer technical

An optical layer is a part of the communication system that uses light signals to transmit data over fiber optic cables. It is responsible for sending and receiving information quickly and efficiently, much like how a highway network moves traffic. For investors, the optical layer is crucial because it underpins high-speed internet and data services, which are essential for modern technology and digital infrastructure growth.

News summary:

• Developed by euNetworks to deliver the highest levels of protection for sensitive data moving between European data centers
• Built on Adtran’s solution, euNetworks’ new Quantum Shield service enables quantum-safe encryption across private high-capacity connectivity, with continuous optical and fiber plant monitoring
• The new offering supports regulated industries with strong assurance against current and emerging cybersecurity threats

LONDON--(BUSINESS WIRE)-- Adtran and euNetworks today announced their collaboration on the launch of a new quantum-safe private connectivity service, Quantum Shield. euNetworks has developed Quantum Shield using Adtran’s optical transport technology to augment its broader architecture, which is designed to deliver secure, scalable data center connectivity across euNetworks’ pan-European network.

Adtran’s encrypted optical transport technology is helping euNetworks deliver the highest levels of protection for sensitive data moving across Europe.

The new offering is built for enterprises with stringent security, performance and customer-controlled encryption requirements. The deployment combines high-capacity dedicated infrastructure with real-time fiber monitoring and enhanced optical-layer visibility to safeguard critical traffic. By integrating advanced encryption with continuous monitoring across the optical layer, euNetworks can deliver the highest levels of protection for sensitive data moving across Europe.

This comes at a time when organizations across Europe are accelerating plans to secure data in transit in response to evolving cybersecurity regulations and post-quantum security guidance. The EU’s coordinated post-quantum cryptography roadmap* targets migration of high-risk and critical infrastructure environments by 2030, while regulations, including DORA and NIS2, are increasing expectations for encryption, crypto-agility and the protection of sensitive traffic traversing private and third-party infrastructure.

euNetworks will offer Quantum Shield to customers as an additional security layer for their Private Connect MOFN solution, which provides private, managed network infrastructure for organizations seeking enhanced security, scalability and control over their data. The addition of private quantum-safe connectivity provides the security of the organization’s dedicated fiber, plus quantum-resistant encryption at Layer 1, ensuring all traffic is automatically encrypted.

The new infrastructure is built on Adtran’s FSP 3000 optical transport platform, incorporating S-Flex^™ technology to support high-capacity encrypted DCI services. euNetworks is harnessing post-quantum cryptography aligned with NIST standards to protect traffic traversing dedicated optical infrastructure. The cryptography is designed to meet current requirements while remaining aligned with emerging cybersecurity standards, supporting a crypto-agile approach as requirements evolve.

The encryption is coupled with Adtran’s ALM solution to provide continuous assurance by instantly detecting and precisely locating fiber-tapping events. Together, these capabilities deliver an integrated optical system that supports low latency, high throughput and enhanced security while giving customers full transparency and control over how their data is secured across the optical layer.

“Data center 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.”

“Operators like euNetworks are setting a clear benchmark for how secure data center connectivity should be delivered,” commented Christoph Glingener, CTO of Adtran. “This deployment shows how purpose-built optical platforms, developed through decades of expertise in secure DCI, can support private network models that prioritize security, transparency and operational control. By combining quantum-resilient encryption with real-time fiber monitoring, we’re helping euNetworks safeguard critical traffic without compromising performance or scalability. This kind of deployment reflects a broader shift in how critical connectivity is being built, giving enterprises confidence that their networks are ready not just for today’s demands, but for the security challenges ahead.”

About Adtran

ADTRAN Holdings, Inc. (NASDAQ: ADTN and FSE: QH9) is the parent company of Adtran, Inc., a leading global provider of open, disaggregated networking and communications solutions that enable voice, data, video and internet communications across any network infrastructure. From the cloud edge to the subscriber edge, Adtran empowers communications service providers around the world to manage and scale services that connect people, places and things. Adtran solutions are used by service providers, private enterprises, government organizations and millions of individual users worldwide. ADTRAN Holdings, Inc. is also the majority shareholder of Adtran Networks SE, formerly ADVA Optical Networking SE. Find more at Adtran, LinkedIn and X.

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ADTRAN Holdings, Inc.
www.adtran.com

About euNetworks

euNetworks is a pan-European provider of bandwidth infrastructure services and a vital enabler of Cloud and AI adoption. We’re the leading connectivity partner for data centre companies and their customers in Europe, directly connecting over 600 data centres today. We own and operate 18 metropolitan city networks connected with a high capacity intercity backbone covering 53 cities in 17 countries. A leading provider of cloud connectivity, we directly connect to all major cloud platforms.

euNetworks delivers scalable solutions to a customer base that is at the centre of technology transformation, offering a targeted portfolio of metropolitan, private and long haul network services underpinned by Dark Fibre, Wavelengths, Ethernet and Internet technology. We proactively invest in our network to ensure Europe’s demand for bandwidth is met today and into the future.

euNetworks delivers services with an active commitment to Sustainability, striving towards net-zero carbon emissions, promoting environmentally responsible supply chain practices and engaging collaboratively with the industry to address the environmental challenges ahead.

Further resources

*• European Commission – Coordinated Implementation Roadmap for the Transition to Post-Quantum Cryptography (published June 2025): EU PQC Roadmap

• European Commission – Recommendation on a Coordinated Implementation Roadmap for the Transition to Post-Quantum Cryptography (Recommendation EU 2024/1101): EU PQC Recommendation 2024/1101

• UK National Cyber Security Centre (NCSC) – Timelines for migration to post-quantum cryptography: NCSC PQC Migration Timelines

• EU Digital Operational Resilience Act (DORA) – ICT risk management and cryptographic controls: DORA Article 6 – ICT Risk Management Framework

• DORA Regulatory Technical Standards – Encryption and cryptographic controls: DORA RTS Article 6 – Encryption and Cryptographic Controls

View source version on businesswire.com: https://www.businesswire.com/news/home/20260526610601/en/

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Source: ADTRAN Holdings, Inc.