Most of the things a normal user would have to worry about are going to be taken care of by the https as Mike said, and the other things, like trojans and whatnot...can't be installed....because to install an app on your iPad as it is from the factory, it needs to be signed and verified by iTunes/Apple. So unless some sneaky developer sneaks a trojan into one of their games (which will never happen) or whatnot, you are fine.
ansuyo said:So are you saying I never need buy protection for the iPad?