Is ASP.Net MVC better in terms of security ?

Just when I thought I will be using ASP.net web form, I need to study ASP.net MVC cos I was told that it is due to security reason....

 

 

I am new in ASP.net even in form based application.

 

Basically, this application is to allow the internal staff to self-entering information like newsletter, newsfeed, updated any benefits, create survey forms themselves etc and the employees can then view it via their hand held devices anywhere...

 

So, does that mean that one's cannot use form based application which is also MVC ?

 

Hope to hear from the experts.

 

Thank you once again...