Make sure the 'Text Message' radio button is selected.Select your phone’s region from the drop-down menu and enter the full phone number (including area code) in the box.Under Credentials, click the 'Edit' link next to 2-Step Verification.Click the Security link at the top of the page.Log into the ArenaNet account management page.If you already have an account, you can also add, update, or remove your authenticator at any time by following these steps: When you create an account, you’ll have the option to setup an authentication method during the registration process.

This method uses your phone's text messaging service to send you security codes whenever a new login attempt is detected. One of the authentication tools at your disposal is SMS authentication. To learn more about how authentication is used to protect your account, visit the Securing Your Account With Authentication article.Authentication (also known as 'two-factor authentication') is an extra layer of security you can add to your account. An account protected by an authentication tool not only requires the correct login email and password to access, but requires a unique security code whenever a login attempt is detected from a new location or unknown network.

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