How did this "BioButton" only seem to come into existence in the past few months? What is this tech based on? What was it called pre C19? It seems suspicious t

How did this "BioButton" only seem to come into existence in the past few months? What is this tech based on? What was it called pre C19? It seems suspicious to me. The Cayman Islands are looking into it for visitors as well https://www.caymancompass.com/2020/07/23/government-gives-more-details-on-biobutton/ https://www.caymancompass.com/2020/07/23/government-gives-mo...