When developing ANE’s for iOS – you must use ARC. This is something like Flash garbage collector that doing all hard work for you automatically.
Few days ago I started small research about protection of Adobe AIR application from some kind of hackers. Many of you may know that after compilation of Adobe AIR app you will receive also SWF file(s) inside package that can be changed. In all cases that I know – developers simply obfuscate that file(s). But protection actually was not applied.