Journal of Environmental science, computer science and engineering & technology (JECET)
In these days, android has become very popular operating system for smart phones. There are some advanced features in android smart phones, with which user can easily share applications via online market store i.e. Google market store. Modern Smartphone operating systems have been developed with a greater emphasis on security and protecting privacy. One of the mechanisms these systems use to protect users is a permission system, which requires developers to declare what sensitive resources their application will use, has users agree with this request when they install the application and constrains the applications to the requested resources during runtime.