Abstract: With the official commercialization of 5G, the Internet of Things has entered a period of rapid development, and the number of Internet of Things terminals has also shown an exponential growth. The following security issues of the Internet of Things have also attracted more and more attention. Internet of Things terminals have become the main target of Internet of Things attacks due to their simple structure, large number, and unattended problems. This article introduces the basic architecture of IoT terminals according to the characteristics of IoT terminals, points out the security risks faced by IoT terminals, and puts forward the security capabilities that different modules of IoT terminals should have for different risks.

Key words: Internet of Things terminals, terminal architecture, security risks, security capabilities