Payment method in which customers enter their secret code at the checkout and then place their finger on a reader set up for this purpose. The customer no longer needs a credit card, and there is no longer any risk of loss or misuse. Fraud is virtually eliminated in this system. – See PIN code, character signature.
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University Professor Dr. Gerhard Merk, Dipl.rer.pol., Dipl.rer.oec.
Professor Dr. Eckehard Krah, Dipl.rer.pol.
E-mail address: info@ekrah.com
https://de.wikipedia.org/wiki/Gerhard_Ernst_Merk
https://www.jung-stilling-gesellschaft.de/merk/
https://www.gerhardmerk.de/