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Quote:

Originally posted by Sharniqua
Trojans are generally permitted on.....by you....they can be attached to all sorts of stuff....and your firewall cant stop them if you let them in

What the firewall does is attempts to stop the owner of the trojan from communicating with the trojan on your system...or the trogan from communicating back to its owner

*this is as i understand it anyway*

The firewall should do that, amongst other things, but if, like 99% of home users, it runs at the same level of privilege as the user unwittingly activating the trojan, it is as good as dead. Also, I won't go into deep detail here, but it is possible for a backdoor to exist in a manner that very few - if any firewalls, and this includes commercial-grade, hardware firewalls - will ever detect.