Recently, the Internet of Things has been rising tremendously in every human interaction with the broad creation of smart buildings and smart homes. Some gures suggest that the number of such devices could exceed 50 billion at the end of 2021.1. With this number of devices, many software and applications can run under these devices that can be the best place for the attacker to take advantage of these vulnerabilities, cause many damages in the level of availability, integrity, and privacy of the users, for example, many endpoint devices can be vulnerable like smartphones, tablets, computers, etc...2. That generate a huge number of data that can be sensitive in particular scenario 3.In this thesis, we provide a general view of the Internet of things architecture, and in the second part, we discuss the attacks that can occur on every layer of the internet of things and the potential solution that can be taken to reduce these attacks. In the last part, we took a case study in Lebanon on the IP cameras to make a scan to collect information of these cameras, nd the vulnerabilities in these cameras and proposed a solution that can help more to protect these devices counter any attacks and in the end, keep open recherche questions for the challenge and problem faced on the internet of things security.