Passwordless Two-Person Authentication

A simple and clever method for two-person remote authentication has emerged! Two individuals use a shared device to generate time-based one-time passcodes (TOTP) QR codes. Each person scans their respective code into a mobile authenticator app (like Authy or Google Authenticator). Later, during a phone or video call, one person simply asks the other for the 6-digit TOTP code to verify identity, effectively preventing digital impersonation. No complex passwords required – secure and convenient!