infoneer-pulse:

iSEC researchers Don Bailey and Mat Solnik claim to be able to hack their way into a securely locked car because its alarm relies on a cell phone or satellite network that can receive commands via text messaging. Devices connecting via a cellular or satellite network are assigned the equivalent of a phone number or Web address. If hackers can figure out the number or address for a particular car, they could use a PC to send commands via text messages that instruct the car to disarm, unlock and start.

One of the reasons this text-messaging approach is disconcerting is that text messages aren’t so easy to block, unless you don’t want to receive any texts (either to your car or phone). Google Voice, iBlacklist and a few others (including wireless carriers AT&T and Verizon) do offer some tools for filtering unwanted text messages.

» via Scientific American