content: The article is referring to the well known Stingray devices. These devices give off a signal that makes it appear as if it is a normal Verizon/ATT/etc tower. This means when your phone is looking for the nearest tower to maintain a cell phone signal, it may attach itself to one of these fake towers, allowing whoever controls it access to all of your data being passed through the network. No root access or any type of modification of the phone is required.