Uh, Houston?

Seems as if there's an iPhone Hack going on out there and it can be activated simply by receiving a text (SMS), so there's not really much you can do to stop it, other than getting lucky and turning off your phone right away if you get the malicious text, which is just one character, a little box.

[ More info here ]

[ More info which strongly implies that this isnt a big deal at all here ]