VAUBAN open source security bastion

Vauban is an open source security bastion, developed in Rust, designed to protect and control access to critical infrastructure across enterprise, industrial, and defense environments. Its architecture leverages proven, cutting-edge technologies: privilege separation inspired by OpenSSH and Capsicum sandboxing, a confinement mechanism developed with funding from DARPA (U.S. Department of Defense). The solution includes multi-factor authentication (MFA), role-based access control (RBAC), full session recording, and real-time monitoring of SSH and RDP connections. Free and sovereignty-friendly, Vauban meets the traceability and audit requirements of sensitive environments while offering an open-source alternative to proprietary solutions.

Critical infrastructure and supply chains face growing cyber threats, yet PAM solutions remain expensive, proprietary, and opaque. Vauban disrupts this market with a fully open source, sovereign alternative to WALLIX, CyberArk, Delinea, Admin by Request, and VirtualBrowser. Built in Rust with Privsep design and Capsicum sandboxing, MFA, RBAC, and real-time SSH/RDP session monitoring, it delivers military-grade security at zero licensing cost — making cyber-hygiene and NIS2 compliance accessible to any organization. One of the strengths of the solution is that it's also designed for OT environments and aim to be compliant with the ISA 62443 standards.

The global PAM market is valued at $3B+ and growing at 20% annually, driven by NIS2 regulations and rising cyber threats. Vauban differentiates through its open source model, zero licensing cost, and sovereign architecture — a unique positioning versus expensive proprietary solutions. Go-to-market targets enterprise, industrial, and defense sectors via direct sales, open source community, integration partners, and qualified hardware w/ integrated AI accelerator and security chip. Revenue comes from subscriptions (LTS), support, professional services, and integrated hardware. The open source model accelerates adoption and scales globally at low marginal cost.

Vauban is built by a lean, high-efficiency team: a Tech Lead and Software Engineer with deep security expertise, and a Product Owner with extensive IAM experience. The team is augmented by specialized AI agents handling development, testing, and documentation — enabling startup velocity with enterprise-grade output. This hybrid human-AI model reduces overhead, accelerates iteration, and scales without proportional headcount growth.

Vauban's vision is to make sovereign, enterprise-grade PAM universally accessible. Already available as packages for Debian and FreeBSD, ready-to-use virtual and hardware appliances, and marketplace images on AWS, Azure, and Google Cloud, Vauban covers both corporate and non-corporate environments. Its agentless, browser-native architecture requires no heavy client — running on any OS and browser while leveraging hardware acceleration for UI and video rendering. This deployment flexibility enables seamless scaling from SMEs to defense-grade infrastructure worldwide.