Key insights Sign into shared devices using a QR code and PIN. Avoid entering long credentials for faster access. This method enhances security by reducing password exposure. Convenience is increased, especially in multi-user environments. The process is user-friendly and efficient for quick logins. Ideal for workplaces or public spaces with shared technology. Keywords QR code login shared devices PIN authentication credential-free access secure sign-in quick device access easy QR sign-in fast PIN entry