Assured, adaptable control for secure information exchange in the cloud era
Nexor Protean is a flexible, modular software-defined gateway built on Nexor’s trusted SIXA® architecture. It delivers network-centric and data-centric security in a unified platform that can be deployed wherever it’s needed, on-premises, in private or public clouds, or across containerised environments.
Its modular design allows new content filters, inspection rules, or security policies to be deployed quickly without downtime, keeping pace with changing mission requirements and emerging threats.
Protean’s automation, scalability, and assured enforcement make it the next generation of trusted information-exchange capability for the UK and its allies.
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Supports Collaborative Working Environments (CWEs) that enable trusted data sharing between departments, allies, and partners.
Protean enforces domain-specific policies, performs deep content inspection (including binary and container image analysis), and validates provenance to ensure that only approved data enters or leaves the environment.
Automates the secure movement of application artefacts and updates between environments of differing classification.
Protean validates software integrity and supply-chain provenance using vulnerability scanning and signature verification, ensuring only trusted code progresses through the pipeline.
Provides elastic scaling for surge scenarios, such as coalition deployments or temporary command posts, where throughput and risk profiles can shift within hours.
Because Protean is software-defined, new secure gateways can be deployed rapidly without physical re-engineering.
Facilitates policy-controlled information flow between Government or contractor networks.
Combines content inspection, deconstruction/reconstruction, malware scanning, and sandboxing to guarantee compliance with security frameworks and accreditation standards.
Checks every software component for authenticity, signatures, and known vulnerabilities before it crosses a boundary.
Ideal for organisations implementing CI/CD pipelines and secure software-supply-chain practices across multiple domains.
Nexor Protean offers a host of advantages that make it the ideal solution for modern, cloud-based infrastructures:
Deploy instantly into cloud or container environments with minimal configuration.
Automatically adjusts capacity and filtering to meet fluctuating data volumes.
Integrates new file-type filters or response modules quickly as threats evolve.
Reduces manual administration and cost through automated policy enforcement.
Delivers deep inspection, anti-malware scanning, and sandboxing for high-assurance environments.
Performs automated provenance and vulnerability checks on software and artefacts before release.
Nexor Protean combines automation, scalability, and high assurance to deliver secure, efficient information exchange across virtual and hybrid infrastructures, strengthening digital resilience for the UK and its allies.
Enables automatic deployment and management of Protean instances.
The benefit? Rapid scaling and reduced manual overhead.
Defines and enforces security rules programmatically for consistent compliance.
The benefit? Easy policy updates and uniform assurance across environments.
Integrates seamlessly with existing toolchains and automation frameworks.
The benefit? Flexibility and reduced development effort.
Processes multiple files concurrently for high throughput.
The benefit? Sustained performance during heavy workloads.
Provides real-time monitoring and analytics tailored to mission needs.
The benefit? Full visibility and informed decision-making.
Incorporates deep content inspection, malware scanning, and CDR within accredited frameworks.
The benefit? Verified protection for classified and sensitive data.
Together, these capabilities provide faster deployment, lower operating cost, and assured control over complex data flows, enabling Defence, Government, Law Enforcement and CNI organisations to realise secure digital transformation at scale.
Nexor Protean operates within formal assurance frameworks, providing the evidence and control mechanisms required for system accreditation and ongoing compliance.
Its architecture supports full auditability, traceability, and policy enforcement, ensuring that every information flow is governed, monitored, and verifiable.
All file transfers, policy decisions, and inspection results are recorded and exportable to SIEM tools for audit evidence.
Security policies are codified and version-controlled for consistency and validation.
Infrastructure and Policy as Code provide full traceability of configuration updates.
Automated integrity checks confirm that deployed instances match authorised baselines.
Functional isolation prevents unauthorised data paths, maintaining separation even under fault conditions.
These mechanisms generate assurance artefacts, audit logs, baselines, and policy evidence that support formal accreditation and reinforce confidence in operational deployment.
Nexor Protean’s assurance model provides verifiable evidence and transparent controls that enable Defence and Government authorities to trust the gateway in live, mission-critical environments.
As a next-generation software-defined guard, Nexor Protean extends Nexor’s heritage in trusted gateways into the cloud domain.
It enforces comprehensive security policies using scalable, virtualised infrastructure that delivers both cost efficiency and responsiveness.
Drawing on trusted controls from Nexor’s certified appliance platforms, Protean applies functional isolation, multi-layer inspection, and behavioural monitoring to maintain assurance even in dynamic or coalition environments.
Nexor’s solution consultants can help design and integrate Protean within your operational ecosystem, ensuring alignment with accreditation, performance, and environmental requirements.
For deployments requiring fixed hardware separation, Nexor GuarDiode provides equivalent assured control in traditional network environments.
Nexor Protean delivers assured, policy-controlled information exchange for modern, cloud-enabled operations.
Built on UK-engineered, trusted gateway technology, it provides the flexibility and assurance needed to deploy secure digital services at scale.
Our consultants work in partnership with Defence, Government, and Critical National Infrastructure customers to design, integrate, and accredit solutions that meet operational and compliance objectives.
If you are exploring secure cloud migration, DevSecOps enablement, or multi-domain collaboration, our team can advise on deployment models, assurance integration, and system design tailored to your mission needs.
We achieved our primary objective of finding a proof of concept architecture that was technologically feasible and simple to implement.
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