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2. On the **Two-Factor Authentication **screen, scan the **QR CODE** image associated with your **USERNAME** with your cell phone:1. Take note of the random code generated by the application, enter it in the **AUTHENTIFICATOR CODE** field and click on the **Enable** button:1. If the code entered is valid, you have activated double authentication.2. It is very important to keep a backup copy of your **QR CODE**, as you could block access to your account if you lose your phone. To avoid this, click on the **Download** button:1. In doing so, a .jpg file of the **QR CODE** is automatically downloaded to your machine.* Be sure to keep this .jpg file in your computer files. Better still, print it too.### How to Activate a TFA with a secret keyOpen the application on your cell phone and indicate that you are about to enter a secret key.2. On the **Two-Factor Authentication **screen, click on the **Secret Key** button associated with your **USERNAME**:1. In the application on your cell phone, enter your account information, i.e. the account name (your **USERNAME**) and your **secret key**.* It is very important to keep a backup copy of your **Secret Key **in your computer files, as you could block access to your account if you lose your phone. Better still, be sure to print it out too.* Take note of the random code generated by the application, enter it in the **AUTHENTIFICATOR CODE** field and click on the **Enable** button:1. If the code entered is valid, you have activated double authentication.## Step 3 — Dual Authentication Login1. Access to https://mg.n0c.com/en/.2. Provide your login details.3. Enter the randomly generated code and click on the **Connect** button.## Loss or Breakage of Mobile DeviceLoss or breakage of the mobile device on which the QR code (or secret key) is stored can result in the user blocking himself.Here is what to do if this happens: