Speak to our team

Secure transfer of classified data

Effective September 2025, a new self-accreditation requirement applies to organizations that handle information classified as EU/NATO RESTRICTED. This introduces binding requirements for data transmission, isolation and auditability across corporate and site-to-site networks.

Protecting classified information with confidence

Organizations handling defense, security or classified development data must meet EUCI requirements for encrypted transport, secure network separation and approved security solutions.

Secure, auditable and ready for the future

Adva Network Security enables quantum-safe encryption for secure connectivity between data centers, production facilities and R&D centers, with BSI approval for VS-NfD and EU/NATO RESTRICTED environments.

Your foundation for EUCI-compliant networks

Layer 2 encryption provides secure virtual segmentation, centralized management and seamless integration into existing networks, simplifying compliance and auditability without smartcards or USB tokens.

Additional application scenarios

Secure WAN connectivity for classified data, protected site-to-site communications, secure cloud access and high-speed Layer 1 encryption for data center interconnects.

Why Adva Network Security?

Trusted European security expertise for organizations handling classified information, from compliance readiness to quantum-safe protection.

Get your network ready for classified communications

We assess your network, identify compliance gaps, and validate secure connectivity through a proof of concept for EU/NATO-approved quantum-safe networks.

Solutions for secure classified communications

Secure network access

ConnectGuard™ MACsec authentication and encryption

Security Director

BSI-approved Layer 2 encryption with virtual network segmentation, tokenless authentication and quantum-safe protection for classified communications.

Find out more

Centralized management, auditability and lifecycle control for encrypted networks, helping simplify compliance and accreditation processes.

Find out more

Hardware-based AES-256 encryption with automated authentication, red-black separation and post-quantum cryptography for highly secure networks.

Find out more

Protected optical transport

Services for secure network operations

EU/NATO RESTRICTED solution guide

Layer 1 encryption with quantum-safe protection, ultra-low latency and approvals for the transport of classified government and defense data.

Find out more

Network assessments, compliance gap analysis, security validation and proof-of-concept services for classified communications environments.

Find out more

Learn how to build secure, auditable and compliant transport networks for classified communications under EUCI requirements.

Download guide

Copyright © 2026. Adva Network Security. All rights reserved.