Security Related Issue (loadMovie)

Hi,

I am developing an application with which u can personalize its interface by loading images into it and skinning certain parts. I load the images mostly using loadClip and loadMovie both. I am thinking that in a worst case scenario, the xml that i use to load the images can have url to swf files that coud
A. manipulate my code,
B. run a code that hangs my user's PC (like an infinity loop).

Now I have recently seen it in the docs that 'system.security.allowDomain' is a way to explicitly tell which domains to allow the script access from, else by default it does not allow access from other domains so, i can say that my problem A is solved here.

My question is, does that mean that it wont allow the scripts in the loaded movie are also ignored? if no, then is there any solution?