IoT is the new green. One of the biggest problems facing the IoT, is scalability. According to a research, it was found that there will be something like 50 billion devices connected to the IoT by 2020. It was also found that each device will usually generate data, and all this data has to go somewhere. Nowadays, networks are connected to several thousands of devices for example, ATM networks and to several million devices i.e. point of sale terminals. Read more about IoT at: http://it.toolbox.com/blogs/datasecurity/iot-scalability-71022