Airwall by Tempered Networks is a secure connectivity solution designed to protect critical infrastructure using an identity-based, zero trust protocol. Airwall provides an end-to-end encrypted overlay network for secure remote access, eliminating broader network access and preventing man-in-the-middle attacks or spoofed credentials. It establishes encrypted overlay tunnels between systems over any network, simplifying routing topology and WAN connections with appropriate security policies. Airwall uses the Host Identity Protocol (HIP) to implement a zero trust model before connections are established, natively encrypting, microsegmenting, and securely connecting devices. Airwall can be deployed across IT, industrial, virtual, and cloud environments, enforcing consistent cybersecurity policies.