Well, the vast majority of people live in impoverished areas of the world, so in a strict sense that's true. But it was absolutely a standard form of authentic

Well, the vast majority of people live in impoverished areas of the world, so in a strict sense that's true. But it was absolutely a standard form of authentication already, and regarded as best practice security for those who cared about such things. Which perhaps weren't that many, but then again, still isn't.