I’ve got a friend who got rid of his land-line phone a few months ago. We were discussing telephone banking the other day. I’ve always assumed that it’s not a great idea to perform financial transactions over a cell phone – broadcasting account numbers, PINs and other sensitive info over a wireless phone just seemed, well, unwise. Like sending credit card numbers over email or something.
He says it’s no big deal – that someone would have to go to a lot of trouble to try and get ahold of that info, because cell calls are under some level of encryption.
So what’s the straight dope? How easy would it be for someone with nefarious intent to find out your PIN by listening in on a cell phone call?