I don't know much about OSX, but do you really think it will stop him once he is already in the system and has kernel access? If i understand correctly, "secure

I don't know much about OSX, but do you really think it will stop him once he is already in the system and has kernel access? If i understand correctly, "secure input" just tells operational system to stop sending keyboard events to other programs. If that's the case, then it doesn't help against zero-day at all.