I want to update an online database through Flash via PHP. Now, I can secure the PHP side easily enough but the Flash side concerns me. It's too easy to decompile SWF files (or it used to be - has AS3 changed this?). So, has anyone got a good method of providing a relatively secure Flash to PHP comms? I want to somehow encrypt the username and password but if the swf is decompiled it would be easy to work out the encryption method.