Best Zero Trust Security Software for Linux

NetFoundry is an identity-first Zero Trust workload connectivity platform designed to secure connections between applications, APIs, machines, AI agents, sites, cloud environments, and operational technology systems. Built on the OpenZiti open source platform, it creates private, policy-controlled connections without relying on traditional inbound ports, VPN tunnels, or IP-based trust. Each workload receives a cryptographic identity, and connections are established only after mutual authentication and identity-based policy authorization. NetFoundry supports use cases including AI security, microsegmentation, site-to-site connectivity, API security, OT and IoT connectivity, and embedded Zero Trust for solution providers. Its outbound-only architecture helps reduce attack surface, limit lateral movement, and simplify connectivity across heterogeneous networks with overlapping address spaces.

Traditional security controls are insufficient to protect from cyberattacks in the digital age, compelling organizations to adopt a Zero Trust Network. The principles are simple – trust no user or device, inside or outside the private network and grant as little access as possible upon reliable identification. Implementing these principles can be complex – solutions that require expensive, time-consuming upgrades to existing network infrastructure make the move to Zero Trust prohibitive. Unisys Stealth is a flexible cybersecurity software built on identity-based encrypted microsegmentation that transforms your existing network – both on-premises and in the cloud – into a Zero Trust Network. Unisys Stealth products and services offer cybersecurity solutions that maximize your security posture, maintain regulatory compliance and protect your organization.