Hacking Android mobile appsWe presented more than 20 diagnostic methods and vulnerability countermeasures provided by the InScure Bank app, which is a virtual model of banking apps. Anyone who has been interested in Android security has made it easy for anyone to practice. We describe the vulnerability points of the vulnerability items at the source code level and suggest methods to efficiently diagnose by presenting the automated analysis diagnosis environment. If you practice by step by step, you can easily diagnose vulnerabilities of Android app service that you diagnose in your business and suggest countermeasures to customers.