A safe that tallies the cash that is placed in it. A sniper rifle equipped with advanced computer technology for improved accuracy. A car that lets you stream music from the Internet. All of these innovations sound great, until you learn the risks that this type of connectivity carries. Recently, two security researchers, sitting on a couch and armed only with laptops, remotely took over a Chrysler Jeep Cherokee speeding along the highway ... while a Wired reporter was driving. A hacked car is a high-profile example of what can go wrong with the coming Internet of Things - objects equipped with software and connected to digital networks. The selling point ... is added convenience and better safety. In reality, it is a ... train wreck in privacy and security. That smart safe? Hackers can empty it with a single USB stick while erasing all [evidence] of their crime. That high-tech rifle? Researchers managed to remotely manipulate its target selection without the shooter's knowing. The Internet of Things is also a privacy nightmare. Databases that already have too much information about us will now be bursting with data on the places we've driven, the food we've purchased and more. Last week, at Def Con, the annual information security conference, researchers set up an Internet of Things Village to show how they could hack everyday objects like baby monitors, thermostats and security cameras. Connecting everyday objects introduces new risks if done at mass scale. Once a hacker is in - she's in everywhere.