Zero Trust model

The Zero Trust architecture approach, first proposed by Forrester Research, is intended to address this by promoting "never trust, always verify" as its guiding principle. With Zero Trust there is no default trust for any entity — including users, devices, applications, and packets — regardless of what it is and its location on or relative to the corporate network. By establishing Zero Trust boundaries that effectively compartmentalize different segments of the network, you can protect critical intellectual property from unauthorized applications or users, reduce the exposure of vulnerable systems, and prevent the lateral movement of malware throughout your network.

REF: https://www.paloaltonetworks.com/solutions/initiatives/network-segmentation