As long as you haven't set up 2fa for your OpenNode account, you'll be able to continue logging in without 2fa.  We recommend that you set up your 2fa as soon as possible in order to gain access to the entire platform and to further secure your account.

Note: Once you set up your 2fa you cannot access your account without it. Remember to save your Secret Key and Account Password in order to regain access by contacting support@opennode.com.