not only are they not virus proof, you get to pay top dollar for 4 year old tech (in most cases).
Yeah, when they left the PowerPC lines and went with Intel, they became more susceptible to virii. 😀
I must say though, in 1999, my wife frequented Japanese websites on our Mac, including one that changed our dial-up number to one of those high-priced long distance providers overseas... Good thing I had a dedicated phone line with blocks on long distance and carrier codes.
We dodged a bullet there.