1. A computer-implemented method to handle installation and assess a threat level of a new application, the method comprising: identifying an application being installed on a computing device; performing static analysis on the identified application; determining a threat level to assign to the application based on the static analysis and detected behavior of the application; displaying the determined threat level to a user through a user interface; and upon determining that installation of the application is safe, installing the application on the computing device, wherein the preceding steps are performed by at least one processor.