Every Note of Polymer Currency Has a Unique Fingerprint That Could be Used to Identify Counterfeits

3 years ago

One of the reasons countries around the world are transitioning from paper to plastic polymer banknotes was the promise they’d be harder to counterfeit—but it didn’t take long for fakes to proliferate. However, an avoidable flaw introduced during the manufacturing process of polymer banknotes could be used as a unique…