I'm a great believer in civil debate as a means to gain truth about a matter. Let each side make its best case, let distinctions be made and applied, and let a disinterested person judge.
In the case of cyber security, I have a nagging suspicion that the doom-sayers are exaggerating the threat, as well as a disposition to disregard arguments that the best defense is a big offense. I'm also concerned, however, that we are failing to take responsible defensive measures because of ideological factors.
Anyway, I welcome this piece by a British professor, Thomas Rid, arguing that many people, including the Defense Science Board, are exaggerating the threat in a search for bigger budgets.