A worm believe it or not can be more dangerous compared to a virus since it's a slower process and you might not know you have one. I a desktop I had a few years ago, I would run scans on a daily basis and my sister used my desktop and got onto a bad cite and the next morning I had a list of various amounts of different viruses and worms. I cleaned it out but there was one little worm still that, (I forget where it get into into in computer), was there and slowed the PC down and then managed to crash the PC completely. Worms are a lot sneakier compared to a virus and, (depending how good they are done), can be invisible for quite some time until it 'turns on'.
Computer Worm is very dangerous because it helping to computer for slow the PC.
