Two-factor authentication, or 2FA, adds a second step when you sign in: as well as your password, you enter a short code from an app on your phone. It is one of the best ways to keep your account secure.
Open your account settings
Click your account name at the bottom of the left sidebar, then choose Settings.
Start the setup
In Settings, open the Two-Factor Auth tab.
Click Enable 2FA.
Confirm your password when prompted. This keeps the change secure.
Scan the QR code
Open an authenticator app on your phone, such as Google Authenticator or 1Password.
Scan the QR code, or enter the setup key by hand.
Enter the 6-digit code from the app to finish enabling 2FA.
From now on, you enter a code from your authenticator app each time you sign in.


