Can u avoid getting hacked?

Well I've been hacked once because I downloaded a colorhack program from a real popular site at the time which everyone downloaded from. Everyone stopped going there after that. Anyways, after I downloaded it I decided to delete it, not knowing it was a hack. And sure enough a day later I get a "connection interrupted" message and my password is wrong. I go into my mule account and there I am online. Then I got booted off my mule account (full of newbs items) and pw changed. Then quickly made a new account, and told all my friends I got hacked and blah blah blah. Disconnected my cable modem, copied all my songs from KaZaA and shit on cd. Then recovered my comp to its original store bought status. Kind of an unnecessary move but my only sure way of knowing I was hack free at the time. At least I was a newb then and only had a mf sorc with ok items.

The only d2 hack I downloaded after that was Pinda 3.4 from Hellmonkeys .