Zero trust has long been the logical successor to the moat/castle perimeter security model, which hasn’t worked very well to protect enterprises from cyberattacks and is becoming increasingly outdated as employees become more mobile and applications migrate to the cloud.
But adoption of the zero trust model, created by former Forrester analyst John Kindervag more than a decade ago, has been slow due in part to aversion to change and concerns that replacing perimeter security with something new would be risky, complex, and costly.
