Need help.....Norton is bugging me to purchase their antivirus protection. I've had a Mac for a number of years now and when I bought it I was told that it wouldn't need protection. Am I better off or does nothing change if I choose to go with Norton in this case? The way it was explained to me was that the Mac's are harder to hack and thus criminals tend to go elsewhere, where the pickings are easier. Still this isn't a 100% guarantee in my mind.