I suggest everyone reads this article. It is very interesting and enlightening. Heck, it could be a pertty nice challenging project. None of these parts are expensive at all. What do you think of this, is this a threat to society? How much of the data that goes over phones these days is unencrytped? Wouldn't encrypting everything be the correct way to mitigate this danger?
Since the days of Alan Turing, the promise of a digital computer has been that of a universal machine, one that can be a word processor one minute and a robot brain the next. So why are radios, a technology even older than computers, still designed stubbornly to do one thing–like 3G, Wifi, FM, or GPS–for their entire lives?
In fact, the era of the single-purpose radio is over, says Michael Ossmann, the founder of an Evergreen, Colorado company called Great Scott Gadgets. And he believes he’s built the one cheap, hacker-friendly radio to rule them all.
“Pretty much any wireless device that you can think of would be in the frequency range covered by HackRF,” says Ossmann.”Just from observing [a signal] over the air, you can reverse engineer it completely to figure out the information transmitted over the network, and potentially inject your own transmissions onto that network. All of that can be done with one HackRF device and a laptop.”
With HackRF in the hands of hackers or security researchers, in other words, no wireless signal would remain secure just by virtue of using a unique, unfamiliar frequency. Ossmann says that tools like HackRF mean wireless communications will need to evolve beyond the “security through obscurity” model of protecting communications that has long been considered outmoded in the wired computing world.
Read the rest at the link. Hopefully I didn't reproduce too much.