Finally dumped Norton

[Cleo]

Aren't most people behind a router?

If all your ports are closed, the default for most, why would you still need a firewall?

Plus with a router you are using NAT so unless you go in a forward a port to the private IP of your computer nothing is going to get forwarded there.

I guess with someone not using a router then you might want a firewall.

Then again what do I know… I'm a Mac user and we just don't have these issues and if we are feeling paranoid we can turn on the built-in firewall. (Mine is turned off BTW)