To setup 2FA with your devices, you can click on your profile on the top-right hand corner and select "Enable 2FA".
From there, follow the series of instructions to download Google Authenticator on your mobile device and scan the QR code provided.
Two-factor authentication (2FA) adds an extra layer of security to your online accounts by requiring a randomly generated six-digit code after you've successfully entered your password.
In the event if you have a change of phone, please follow the instructions below :
Follow these steps on your old phone:
1. Open Authenticator then tap the three-dot menu icon followed by Transfer accounts.
2. Select Export accounts and enter your PIN code when prompted.
3. Pick the accounts you want to transfer then tap Next.
On your new phone:
1. Open Authenticator, tap Get Started,
2. Tap Import existing accounts? located at the bottom of the screen.
3. Select Scan QR code.
Your old phone may have just one or multiple QR codes for you to scan. Follow the prompts to finish the transfer process. You'll see a confirmation prompt for each successful transfer.
iPhone users have to do some extra work
Google hasn't updated the iPhone Authenticator app with the same transfer process yet, so you'll need to use the old school method of manually transferring your Authenticator accounts, one by one. Here's what you'll need to do:
1. Install Authenticator on your new iPhone.
2. On your computer, visit Google's two-step verification site and log in to your Google account.
3. Click Change Phone in the Authenticator app section. Select the type of phone you'll be using and follow the prompts. If you want to disable Google Authenticator altogether, click on the trash can icon and confirm your decision. Google will then revert to delivering your 2FA codes via SMS.
4. Open the Authenticator app on your new phone and tap Begin > Scan barcode. Scan the QR code displayed on Google's website with the Authenticator app, then enter the six-digit code to verify everything is working properly. Once that's done, the codes on your old device will no longer be valid.