Note: Changing your primary method for two-factor authentication invalidates your current two-factor authentication setup, including your recovery codes. Keep your new set of recovery codes safe. Changing your primary method for two-factor authentication does not affect your fallback SMS configuration, if configured. For more information, see "Configuring two-factor authentication recovery methods."
- 任意のページの右上で、プロフィール画像をクリックし、続いてSettings（設定）をクリックしてください。
![ユーザバーの [Settings（設定）] アイコン](/assets/images/help/settings/userbar-account-settings.png)
- 左のサイドバーでAccount security（アカウントのセキュリティ）をクリックしてください。
- Next to "SMS delivery", click Edit.
- Under "Delivery options", click Reconfigure two-factor authentication.
- Decide whether to set up two-factor authentication using a TOTP mobile app or text message. For more information, see "Configuring two-factor authentication."
- To set up two-factor authentication using a TOTP mobile app, click Set up using an app.
- To set up two-factor authentication using text message (SMS), click Set up using SMS.