From driverless cars to smart thermostats, from autonomous stock-trading systems to drones equipped with their own behavioral algorithms, the Internet now has direct effects on the physical world. Forget data theft: cutting-edge digital attackers can now literally crash your car, pacemaker, and home security system, as well as everyone else’s. In *Click Here to Kill Everybody*, Bruce Schneier explores the risks and security implications of our new, hyper-connected era, and lays out common-sense policies that will allow us to enjoy the benefits of this omnipotent age without falling prey to the consequences of its insecurity.