Security for IoT needs to be considered from the start of design and not retrofit at the end of a program or in the field. At that point, it is too late. Security also needs to be viewed holistic from the hardware to the cloud. This section illustrates a simple IoT project from the sensor to the cloud and illustrates the "blanket" of security to consider. The intent is to deploy a system with various levels of safeguards, all there to increase the attacker's work function.