Use of mobile device and its accessibility is increasing day by day in recent time. Thanks to the technological advancement for this. For the same reason, these devices are now turning into the gateway to leak user’s personal information and confidential credential from hacker all around the world. Devices are often blamed for insecurities, but we mobile devices vulnerabilities are insidious most of the time. So in this article, I will discuss common vulnerabilities in the mobile application that we may be overlooking.