There was once a time when people distinguished between cyberspace, the digital world of computers and hackers, and the flesh-and-blood reality known as meatspace. Anyone overwhelmed by the hackable perils of cyberspace could unplug and retreat to the reliable, analog world of physical objects. But today, cheap, radio-connected computers have invaded meatspace. They’re now embedded in everything from our toys to our cars to our bodies. And this year has made clearer than ever before that this Internet of Things introduces all the vulnerabilities of the digital world into our real world.