Its probably more like half of all machines on the internet are infected. I wish ISP's would crack down and weed out idiots who get their computer infected. Sorry people, but if you can't keep your computer secure (or won't because its "too much trouble to go through"), then you need to be removed from the internet. Its only an illusion that non-computer types can successfully use a computer. Whether that is a fault of computer programmers or not is a different issue for a different time. But if a computer is infected, ban the account. Period.