Many new technologies such as the smart cities, the Internet of Things (IoT) and the 5G Internet need services done by cloud computing for processing and storing more information End-users, networks, access control, and infrastructures are now all part of cloud computing. The goal of our project is to identify the new threats to cloud computing and find a solution and ways to deal with them also characterize and summarize the efforts made in the literature to find solutions to these security issues.