The smart devices intercommunication concept has gained an enormous increase in fame and use with the constant development and research in communication networking, especially in the lives of people who live in highly developed areas. In this concept, a huge number of daily used smart applications are users in exchange of data being collected by smart devices, this may lead to the security and privacy issues. Normal user might not take observation on weakness and threats that initiate by advance technologies. Main aim of the paper it to provide clear image of lOT, attacks that can happen on HAN and there possible solutions to overcome those attacks in future integrated on a single platform. The HAN devices provides the users with continent and comfortable life reducing their physical efforts, by determining the behavioral activities of the.