---------------------------------------------------------------------***--------------------------------------------------------------------Abstract – IOT(Internet of things) is rapidly burgeoning field of modern era of computing. IOT products can be classified broadly into five different categories: smart wearable, smart home, smart city, smart environment, and smart enterprise. The IOT products and solutions in each of these markets have different characteristics, which will be further explained in quotidian manner. Security vulnerabilities are explained in accordance with results of survey of Gartner, Inc. (NYSE: IT) which is information technology research and advisory company, and solicitous to deliver the technologyrelated insight. In addition, few of the upshots are from Forbes as well.