Today’s era mobile security has become a big issue in day today life. Most of the people want to use smart phones for communication, planning and organizing their schedule for their private life. These technologies are causing profound changes in the organization of information system. Android has been changed in mobile market. Now most of the people are using smart phones for their digital life – email, social networking, important messaging, photo and video sharing and etc. Smartphone are very attractive for users as well as attackers. Most of the attackers are using hacking techniques to get private information about their personal life that is directly generated money for the attackers. It is up to the Smartphone operating system to ensure the security of data in device. In last two years Android became a most popular operating system in the mobile market. For these mobile device is activating over 1.5 million as per day. Android is expected to cross the 1 billion active device barriers in 2013. It covers 70% percent of the mobile market. In this paper we discuss about Android operating system security which has been developed for mobile phones. Android Application development, layered Approach and details of security information for android also an Android Application Sandbox. Which is used for perform both static and dynamic analysis on android programs.
