1. Enter the Account Center and click the【Security】 tab in the【2FA】section. Next, click the【Manage】 button to enter “Security Key Management” page and click 【Delete】under the “Action” column.
2. Click 【I understand】after confirmation about the pop-up message.
3.Insert your YubiKey into an available USB port on your machine and press the authentication button within 60 seconds. You can try again if the time is up. （if there are multiple Yubikeys, you can verify any of them.）
4.Verify the deletion of your YubiKey through Google Authentication or SMS Authentication.
5.The Yubikey has been removed from your account successfully.