Zero Trust networks

Zero Trust networking, a concept introduced by John Kindervag in 2010, challenges the traditional notion of perimeter security by treating internal networks as if they were external, requiring authentication, encryption, and logging for every connection. This approach aims to prevent adversaries from exploiting the lax rules of trusted internal networks. Microsegmentation, a method for transitioning to Zero Trust networks, involves segmenting a network into smaller parts, each with strict access controls, until each segment contains only a single machine. Although this process is daunting with traditional tools like routers and firewalls, companies like Tailscale are developing products to simplify microsegmentation, enabling organizations to incrementally achieve a Zero Trust network without incurring the prohibitive costs of a complete overhaul. The interest in this area lies not just in enhancing security but also in reviving a simpler programming approach that has been compromised by evolving internet threats.