So, I assume the situation is sort of that the Vampire in general want to restrain themselves, so that they aren't found out, and you know, destroyed from existence and all. But when an attack does happen, it's because a 'younger' Vampire couldn't control their urges and lashed out, and thus why the Protectors exist.
Heh, I meant it more in the sense that the Hunters and the Vampires would be aware of events that happened, once upon a time, like how apparently the Civil War was a straight up Vampire plot, kind of thing.