Paradox by Becrypt is a security-focused operating system developed in collaboration with the UK Government to meet the growing need for robust endpoint protection against elevated cyber threats. Paradox provides secure access to cloud and online services as a lightweight operating system, supporting security features difficult to implement in general-purpose systems. Initially used in government classified environments, its functionality is relevant across critical national infrastructure. Paradox guarantees endpoint devices remain free from malware and provides strong protection against elevated threats and targeted cyber-attacks. Unique measured software execution ensures that no applications or system components have been tampered with. These cryptographic checks ensure that endpoints are in a trusted state and are free from compromise, making them safe for accessing sensitive systems. Paradox simplifies the endpoint environment, providing an intuitive browser-based user experience and delivering cost savings with enterprise security. It supports enterprise VDI and VPN clients, with integration for secure remote access using High Assurance and High Grade crypto. Centralised patching, security and policy management simplifies device management for remote users. Paradox can be installed on bootable USB devices, providing a portable platform for a secure working environment on an unmanaged PC. Paradox is designed to withstand elevated threats relevant to Privileged Access Workstations (PAWs) and ensures device trust through robust health measurements and remote attestation. It is used by government and defence organisations pursuing best practice in deploying modern classified networks and by organizations in Critical National Infrastructure for privileged access workstations, secure remote access, and supply chain collaboration.