 The Internet of Things, IoT, has opened up a world of possibilities for connected devices and systems, but its reliability and security remain a major concern. To address this issue, formal verification and validation, FVNV, techniques have been developed to ensure the safety and effectiveness of IoT systems. These techniques include formal methods and testing techniques, as well as artificial intelligence, A, based tools. Despite some progress, there are still many challenges and open issues in this area, such as the state explosion problem and the need for more efficient testing techniques. Future research should focus on developing better solutions to these problems, as well as exploring other potential applications of FVNV techniques for IoT systems. This article was authored by Moats Critchin.