At present days, technology growth was rapid and its use is very often. So the attacks were concentrated on the user systems mainly by using the network applications. Bugs in the application of a network can ruin the applications in a system that are running. When the user is in the use of internet or e-commerce sites, etc.., the applications will be considered that they are in an unsafe environment. Providing security to the network applications like web servers, mails, etc... Is very difficult because they are usually very big applications to make them free from bugs. Now this paper describes how to provide security to the network applications which are in unsafe environment. This idea describes that all the applications were wrapped together for the security purpose and there will be no use to rewrite the network applications.