First, QR codes eliminate the numeric authentication code, so there's no code for a scammer to intercept or exploit. Second, they're not dependent on any anti-abuse or anti-SMS swapping protections that may be in place with your mobile carrier.

Google has announced plans to implement QR code authentication for Gmail, replacing the current SMS-based verification system. The change marks a significant shift in Google’s authentication strategy as the company continues its broader push toward making passkeys the default login option for personal accounts and moving away from traditional security methods like passwords and SMS codes.