Two factor authentication - Activation and Deactivation
With two factor authentication, you can protect your TeamViewer account and thus your Computers & Contacts list from unauthorized access with an additional security code. Activate/deactivate two factor authentication as described below.
Enter the email address and password of your TeamViewer account.
Enter the recovery code that you received during the activation process.
Click the Deactivate button.
Recovery key to deactivate two-factor authentication:
If you lose access to your mobile device or to the authenticator app on your device, the recovery key is your last resort to deactivate two-factor authentication. The recovery key allows you to login again with your email and password. The recovery key is very powerful as it allows you to deactivate two-factor authentication. Therefore, it must be kept in a secure place. Consider printing more than one copy in case one copy gets lost or destroyed. Do not send the recovery key unencrypted via email since this could give an unauthorized user access to it. After deactivating two-factor authentication with the recovery code, you can always reactivate two-factor authentication for your user.
Caution: The two-factor authentication can not be deactivated by TeamViewer. If you lose your recovery key, you will also lose access to all TeamViewer features where your account is needed. Therefore, it must be kept in a secure place.