Log in with both a password and your security key.

1. Log in to your Twitter account. In the side menu on the left, click More, then click Settings and privacy.

2. Click on Security and account access, and then click Security.

3. In the Two-factor authentication section, choose Security key from the list of methods.

4. You will be asked to enter your password to continue.

5. After you click Continue:

   • If you are using an IDmelon Reader, insert it into the USB port of your device, tap your smartphone to the Reader which starts blinking blue for a few seconds to receive the notification.

   • If you are using IDmelon Pairing Tool, you will receive the notification on the smartphone which is already paired with your computer.

6. Click Add key at Add the security key to your Twitter account page.

7. Enter a name for your security key at the Name your security key and click Next.

8. Click Done.