Developer file created by Eclipse, a software development application; generated by Eclipse automatically when creating a new applet project and saved to the project root folder as the file java.security.policy; contains security permissions for the applet.

By default, the java.security.policy file contains the following property, which allows all permissions for the applet codebase: grant {   permission java.security.AllPermission; }; This permission is generally suitable for local development on the developer's machine. However, it may not be suitable for deploying the applet to a production environment, since the applet's permissions may need to be restricted.