That little black home router with the funny antennae and shiny lights could be part of an army of devices conscripted to take down the internet. It sounds dramatic, but regular people’s internet-enabled devices – routers, webcams, printers, and so on – were used in a massive online attack that shut down a huge part of the internet for hours one Friday morning last October. With the number of connected devices estimated to reach 50 billion by 2020, you can be guaranteed that cybercriminals will attempt it again.