A standalone Bitcoin kiosk/ATM device including a bill validator, bill dispenser, printer, one or more scanners/readers, touch screen display, processor/controller and wireless internet connection means (e.g. modem). An enrollment and security protocol involves a processor programmed to run executable instructions, said executable instructions causing said processor to facilitate: (i) receipt of a customer's mobile phone number via the user interface; (ii) transmission of a text message including a random code to the mobile phone of the customer; (iii) receipt and confirmation of the random code entered by the customer via the user interface; (iv) receipt of a PIN entered by the customer via the user interface; (v) receipt of a palm vein pattern via the biometric interface; (vi) receipt of a customer photo via the camera; and (vii) receipt of identification data including photo via the ID scanner/reader.