Zones provide program control
Whenever a program requests access permission or server permission, it is trying to communicate with a computer or network in a specific Zone. For each program you can grant or deny the following permissions:
By granting access or server permission for the Trusted Zone, you enable a program to communicate only with the computers and networks you have put in that Zone. This is a highly secure strategy. Even if a program is tampered with, or given permission accidentally, it can only communicate with a limited number of networks or computers.
By granting access or server permission for the Internet Zone, however, you enable a program to communicate with any computer or network, anywhere.
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Advanced users can specify the ports and protocols a particular program can
use, the hosts it can access, and other details. For more information, see
Creating an expert rule for a Program .
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