Abstract
The exponential growth of devices connected to the network has resulted in the development of new Internet of Things (IoT) applications and online services. In recent years, the research in generic Internet of Things (IoT) attracts a lot of practical applications including smart home, smart city, smart grid, industrial Internet, connected healthcare, smart retail, smart supply chain and smart farming. In this paper we surveyed some categories of popular security issues in the IoT and their corresponding proposed solutions. We summarize the recent researches in IoT security field and try to discuss the underemployment topics in this field.