Open-source service is a type of software where source code is released by the copyright holders for users to utilize, study, and can modify it. It is a service that focuses on providing open source technology all over the world. The driving factors in the open-source services market include the government encouragement in adopting the open-source services in the public sectors to render an open platform for vendors and users. However, certain tools used in these services are not trustworthy, which makes the code weak and difficult to detect; this is the major cha [...]