Is this possible. Say I have valuable infromation in my swf
file compiled from FB3. Can people see the code? If don't let
someone see my login screen in my flex program, can they still
access the important functionality in that program somehow?
A swf should never contain any information that needs to be
hidden. You can obfuscate info (there are obfuscators for
Actionscript) but you will only slow down a good hacker. In some
cases obfuscators are sufficient, but that's for you to