I just had a few questions concerning cerian virri. I have ALOT of knowledge on how the Trojan Virri infects and controls the PC. Maybe a little too much understanding of this.However I seem to be in the dark about all these Worms going around, using Outlook Express, ect to spread their evilness.What security, holes do these worms create. Simply because they replicate themselves, does that make them a worm? I guess it prolly varys from worm to worm as far as how much damage is done to the system, but I would like a breif breakdown of these Worm Virri. Thank yu