Network security for the quantum era

Protect mission-critical data with advanced encryption and real-time visibility

Protecting networks from quantum-era threats

Quantum computing threatens the long-term security of encrypted data, requiring operators to rethink how they protect sensitive information that must remain secure for years or decades.

Securing communications in the quantum era demands more than traditional encryption approaches. Networks must protect data in motion against future decryption risks while maintaining confidence that secure services are operating as intended. Adtran addresses this challenge with a defense-in-depth approach that combines multi-layer, post-quantum-ready encryption across optical, Ethernet and IP environments with the capabilities required to operate and validate secure networks at scale.

In addition to cryptographic protection, Adtran extends security into the physical and operational layers of the network. Infrastructure monitoring and operational insights help teams assess the integrity of the transport environment supporting encrypted traffic, while assured operation supports security-sensitive and mission-critical use cases. Together, these capabilities enable operators to protect long-lived data, validate secure communications and maintain trusted network operation across service provider, enterprise, government and critical infrastructure environments.

Key capabilities for secure communications

Core capabilities that strengthen data protection and infrastructure assurance across multi‑layer networks.

Quantum‑safe

Multi‑layer protection of long-lived data using standards-aligned post-quantum cryptography.

Infrastructure insight

Continuous visibility into the physical transport layer to detect tampering or degradation.

Operational assurance

Tools that validate physical layer integrity and support secure network operations.

Enabling technologies

Optical layer

Quantum-safe optical transport

Encrypted optical transport platforms that support high-capacity wavelengths and integrate with advanced key exchange systems, enabling secure data movement across long-haul, metro and regional networks with crypto-agile architectures.

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Ethernet

Encrypted Ethernet services

Carrier-class Ethernet solutions enabling secure point-to-point and multipoint services with hardware-based encryption and flexible deployment across enterprise and service provider networks.

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Security control

Encryption control and automation

Centralized control and automation for secure key exchange, policy enforcement and operational management across encrypted transport environments.

Explore Security Director

Operations

Infrastructure monitoring

Fiber monitoring technologies that detect faults, degradation or abnormal events, providing early warning and assurance for secure communication environments.

ALM fiber monitoring

Quantum readiness

Quantum-safe key exchange

Support for post-quantum cryptography and interoperability with quantum key distribution approaches, enabling flexible adoption of quantum-safe security models.

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Operational impact you can measure

By unifying multi-layer encryption with real-time awareness of the physical transport environment, operators can detect and validate infrastructure issues faster, reducing effort spent confirming faults and addressing security risks. Physical‑layer insights enable early detection of fiber degradation or tampering before they affect secure communications, helping teams determine whether problems stem from the network, encryption systems or underlying infrastructure. Quantum-safe encryption limits exposure of sensitive or long‑lived data to future decryption threats, improving incident response, simplifying compliance validation and reducing uncertainty when assessing potential threats.

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Effective quantum-safe networking depends on pairing strong encryption with continuous insight into the physical infrastructure. This combination is essential for long-term protection of critical data.

Josef Sißmeir
GM of Adva Network Security