Implement a uniform level of security across your networks
A uniform, predefined level of network security allows you to define a baseline or minimal standard, below which a network component cannot be connected.
A uniform level of security guarantees sufficient robustness even if additional security measures need to be provided for every component. II also prevents endless discussions about changes to the infrastructure.
The networks containing sensitive information need to be separated from the more public networks. Furthermore, the network needs to be divided according to the users and their security profiles.