I m a student from china and i can program with c#,vb.net and vb.

it is good to know how to develop applications, but in my opinion, to avoid being bugged by other states, you should create our software to 0 or at least from a linux distribution that allows the analysis of the source so as to eliminate any holes security as rootkits or other, so the unix system is able to well discharge all the possible tasks in which it would take.