Scanning A QR Code That's Already On Your Phone Is Actually Simple - Here's How

On iPhone, open the saved QR code in Photos and tap and hold it. On Android, open it in Google Photos and tap Search to scan ...
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How to Set Up Google Authenticator for Seamless Two-Factor Authentication

First, turn on two-factor authentication for the account. You'll get a QR code or setup key. Next, open the Google Authenticator app and tap the plus sign. Record the 2FA code/key. Whenever you're ...