A Comprehensive Survey of Internet of Things Applications, Threats, and Security Issues

The Internet of Things (IoT) is a novel way of providing a wide range of solutions. The IoT includes a variety of small smart devices. Their use, size, power, and computation power distinguish them from other devices. Due to the fact that the most of Internet technologies and communication protocols have not been intended to function with the IoT, there are numerous security concerns. The digitalization of the Internet of Things has also raised concerns about safety, privacy, cyber-attacks, and organised crime of the IoT has also prompted public safety concerns about privacy, cyber-attacks, and organised crime. This paper aims to include a full overview of edge-side security threats and countermeasures for people who want to learn more about security and add value to its improvement. This layer is divided into three levels: We'll begin by discussing three prominent IoT reference models, as well as security. Second, we will discuss the promising applications of the IoT as well as the motivations of hackers who seek to take advantage of this new technology. Third, we'll take a look at some of the most serious threats. Fourth, we discuss possible countermeasures.