A method for generating a secure application is described herein. The method can include the steps of obtaining a target application and decomposing the target application into original files that contain predictable instructions. One or more predictable instructions in the original files may be identified. In addition, the target application may be modified to create the secure application by binding one or more intercepts to the target application. These intercepts can enable the modification of the predictable instructions in accordance with one or more policies such that the behavior of the secure application is different from the original behavior of the target application. Modification of the target application may be conducted without access to the source code of the target application.