Researchers will present the technique at the Black Hat security conference this week. Alessandro Acquisti says the method is far from foolproof, but that the individual pieces of technology are developing rapidly. The point is to show that a framework of digital surveillance that can go from a person’s image to personal data exists today and will only get better as technologies improve, he says. The method could be ready for use in the real world in the foreseeable future, he adds, but it’s not foolproof.”]