How did they do it? They took everyone's devices. Laptops, Desktop computers, IP Cameras, Smart TV's and many other household devices connected to the internet and turned it around and slammed their own servers with our very own internet devices knocking them out. According to news homeland security reports they did this as a FOG aka Smokescreen while they were inside the network doing something which they aren't sure what exactly. Taking data? Planting data? I have a theory.