1. A method for evaluating security assessment of an application, comprising: receiving, by a security assessment computing device, application entry data associated with a plurality of entry points of the application; identifying, by the security assessment computing device, at least one security threat entry point based on the application entry data; computing, by the security assessment computing device, a coverage index value based on the application entry data and the at least one security threat entry point; and generating, by the security assessment computing device, a recommendation report indicating security coverage of the application based on the coverage index value.