If someone has the time they can steal whatever they want from you as long as you both have access. Though it is a bit meaningless if they don't actually know what they are doing anyways.
You really gotta go all out to steal someones AI and be successful with it. To which point some noob isn't going to steal your AI at any point and have a bunch of success. More likely they are going to be more confused than anything because there are a shit ton of inputs and they don't have access to the same type of talent as you do. If someone really wanted to copy me to the point where they stole my AI, my packages, my plays, my depth chart thoughts, my VA choices, and my build philosophies...well I would imagine they had a bit of an idea of what they were doing in the first place and I wish them luck in the future.