For authenticators without a method to collect a user gesture inside the authenticator boundary other than through a power on gesture, the act of a user placing an NFC authenticator into the NFC reader’s field is considered a user gesture that establishes user presence and provides evidence of user interaction. This powers-up the authenticator, who then starts an NFC powered-up timer, and sets an NFC userPresent flag to true. There is an associated NFC user presence maximum time limit of tw...
