We need DNA/retina/fingerprint scan to become standard issue in all modern PCs. Turn the data into a cryptographic hash somehow and implement.

Also, I would quibble that if something is possible, it cannot truly be considered foul play, if the goal is an immutable matrix of information, as the universe is. I know it's something of a personal stance though, as there's little I detest more than unenforceable rules in contradistinction to actual natural law, like the boiling point of water.

However, we're in that painful period of technological transition (at least, we, the homely populace: can't speak for what the rich elite have achieved in military applications) where we fall very short of emulating that sort of informational integrity. It's nice in a way because it pushes human ingenuity to keep innovating and striving for a closer understanding of how things operate in nature.