Scientists dream up a credit card that no one can forge
19 Dec 2014 • engadget.comPut very simply, instead of a magnetic strip, future credit cards would have a band of nanoparticles running down one side. When a bank wanted to assign the card to a person, a laser would fire at it, bouncing light randomly across the strip. The quantum pattern that would be left by the “indentations” would be sufficiently random that, like a fingerprint, it’d be too resource-intensive to replicate, if it was at all possible.
Credit cards powered by nanoparticles? Yes, please. Being more secure is a great fringe benefit.