In a 4x3 user study (N=30), a checkers-style visual matching challenge and a six-digit PIN were the most preferred and effective 2FA methods when using a smartphone seen via near-range pass-through in VR.
Smartphone security awareness: Time to act,
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NRXR-ID: Two-Factor Authentication (2FA) in VR Using Near-Range Extended Reality and Smartphones
In a 4x3 user study (N=30), a checkers-style visual matching challenge and a six-digit PIN were the most preferred and effective 2FA methods when using a smartphone seen via near-range pass-through in VR.