Network security has changed a lot over the years, it had to. From wide open infrastructures to tightly controlled environments, the standard practices of network security have grown more and more sophisticated. This post will take us back in time to look at the journey that a typical network has been on over the past 15+ years. From a wide open, “chewy” network, all the way to zero trust networking. Let’s get started.

In days gone by, highly regulated industries like pharmaceuticals and finance were the biggest targets for nefarious cyber actors, due to the financial resources at banks and drug companies’ disposal – their respective security standards were indicative of this. Verizon reports in 2020 that, whilst banks and pharma companies account for 25% of major data breaches, big tech, and supply chain are increasingly at risk.