Imagine yourself wearing the hat of a network engineer, where no two days at work are alike. In this dynamic environment, you're often the first point of contact when something remotely IT-related goes wrong, with users frequently pointing fingers at the network. Yet, your expertise lies in knowing the intricacies of network traffic, a vital skill for addressing operational and performance challenges.

When the concept of Zero Trust emerged in 2010, it marked a sea change in how IT and network security are handled. The term, invented by Forrester Research analyst John Kindervag, is loosely based on the “never trust, always verify” motto. So why is this a sea change? Before 2010, IT focused on perimeter defenses and the concept of DMZs — areas of the network they deemed safe based on the protection they implemented.