A framework for securing a source code base during the development phase of a software development lifecycle is provided. The framework includes an aspect package module and a validator package module. The aspect package module integrates security routines into the source code base. The aspect package module includes a custom interface module and a validator aspect module. The custom interface module includes a function declaration, wherein the custom interface module is implemented by at least one class of the one or more classes. The validator aspect module includes a controller code for controlling the flow of the execution, based on the context for the security validation of the at least one class, wherein one or more security routine integration points are defined in the at least one class. The validator package module validates the at least one class, based on the defined context, by using one or more validation classes.