■ First, we will link Google authentication.
1. Click the "Settings" button in the "Google authentication" item of "Security settings".
2. Scan the QR code of ①, install the "Google Authentication System" application, and then start it.
3. Scan the QR code of ② or enter the key to obtain the Google authentication code.
4. Click “Get Code” in ③ and enter the obtained SMS verification code.
5. Please enter the 6-digit "Google Verification Code" that is currently displayed on the app.
6. Click the "Confirm" button.
■ Next, set the two-step verification method to Google authentication.
1. Click the "Google" button in the "Two-step verification" item of "Security settings".
2. Click "Get Code" and enter the obtained SMS verification code.
3. Please enter "Google Verification Code".
4. Click the "Confirm" button.