That is a very valid point. However, there already are modifications of the PS4 unfortunately. Yet, the neotopia world itself will be managed by Madmunki and it will be given special attention and new designs to counter such issues. Hackers are everywhere. Take a dip into Second Life, you will find an abundance of them. The point of developing a caring, friendly, and integrated community is not only to prevent hacking thats destroys it but also to give little reason to do so in the first place. Many "freezers" in Playstation Home did so because of unfriendly atmospheres of a free service by Sony where everyone from competitors to bored agitators would get on the service to create drama. Hateful drama is the last thing we want. However, if you want a world entirely free of hacking potential, I suggest offline with no electricity.