is this is right to use ajax post call in mvc applicaion rather than normal mvc form posting ?

Hi,

I am working on a MVC application using repository pattern and entity framework. i am writing  ajax call on most of the views for posting data and getting data.

i am worried about the security , is this is the right way to use ajax calls on my view or do i need some extra security to secure my ajax call because if i open the source of html i can see all my ajax call .

please help me how to seure.

Thanks in advance.