What is a PC worm and how is it different from a PC virus?
PC worms are all too familiar to most computer users. Virtually everyone has received a suspicious e-mail message with an unfamiliar files attached that beckons to be opened. This is the common PC e-mail worm. However, a more insidious type of worm is the network worm, stealthily propagating itself through entire enterprise systems, often without users’ knowledge.