Embedded System, Internet of Things (IoT) and machine-to-machine (M2M) communication. Home network security risk caused by the IoT technology. Evaluation of the home or commercial network security with regards to the installation of IoT. Elaboration of a guide line in home or commercial network security. Evaluation of the network security impact in using the IoT technology in a home, commercial, industrial and governmental environment. Defining network security principle when developing and deploying IoT.