A trusted zone protector in exemplary embodiments of an electronic system helps reduce unwanted attempts to use a consumer machine in a trusted zone to address a network resource that lies inside the trusted zone on behalf of a website that lies outside of the trusted zone. An address manager in the electronic system is arranged to provide an indication whether an element retrieved by a network-enabled application executing on the consumer machine is arranged to address a network resource that lies inside the trusted zone. The trusted zone protector is arranged to generate a protective action in response to the indication that the element retrieved by the network-enabled application is arranged to address the network resource that lies inside the trusted zone.