In their article "Why Vampires Never Die", Guillermo Del Toro and Chuck Hogan suggests that although the concept of vampires are nothing new but just a "new twist of a very old idea", it's still favorably consumed because of its ability to adapt to today's society. In today's world with our technological means to deliver entertainment, people are used to contents being constantly replaced and this is where the vampires strong point becomes visible. With a little bit of an adjustment, the vampire figure can be modified to fit into a completely different story.
One cultural manifestation of our nightmares is artificial intelligence becoming self aware. Technology seems to be evolving at a rapid pace and perhaps eventually it will come to a point where it gains a consciousness. An example of this would be the Skynet artificial intelligence in the "Terminator" movies where the network becomes self aware and pushes humanity to the brink of extinction.