
dangerous as the Internet. A simple litmus test to distinguish a
trusted network from an untrusted one includes the following:
■ Sensitivity of data: segregate sensitive data
■ Promiscuity of user base: Multiple, potentially anonymous users
on a single machine in a single day would be a highly promiscuous
machine.
■ Uncontrolled access to machines: A reception computer may not
be a trusted network device.
■ Risky software development practices. Isolate!
■ Unsecured previously known compromised areas
Organize the network accordingly. From a chaotic mash of
trusted and untrusted computers, multiple networks can emerge.
Subsequent organization and policy mapping ...