How far android is secure?

In the last few years, Android becomes one of the most popular mobile operating system in the whole world, as a side effect of this popularity, Android becomes the most preferred destination of hackers with different aims, some of them look for making money and others are just having fun by storming the privacy of the others without their permission. Nowadays, Android security has become a big problem because of the free application provided and functionality that make it very easy for anyone to develop it. However, various systems have been proposed by a large number of researchers to address this problem, including the system developed by Google called "Bouncer". In this article, we focus on several security issues related to the Android smart phone. In addition, we have a simple scheme of defense that can effectively detect and address some of these issues in the form of android application we called PermisSecure.