[saagarjha]

Right, I meant “deep code signature” rather than “executable code signature”, thanks for the correction. I think macOS has a thing where it only checks the former the first time you launch an app and not after that, so you can scribble all over the resources and the system won’t care. Presumably this was thought to not be a big deal, but you showed a pretty good example of how you could launch a data-only attack on the privileges associated with the program :)