# Account security

**2 factor authentication**

We use 2FA (two-factor authentication) for all activities and changes in our system. This gives you an additional layer of security.

Please enable 2FA as soon as possilble in menu **Settings\Serurity** 

<figure><img src="https://3581776959-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFe844yi2U8Swnqhi7iE8%2Fuploads%2F53UGu08GeHOiWEiBWrcf%2Fimage.png?alt=media&#x26;token=c93339c1-3272-435d-b1e4-bc35d6e1b7c5" alt=""><figcaption></figcaption></figure>

Follow instructions to connect.

<figure><img src="https://3581776959-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFe844yi2U8Swnqhi7iE8%2Fuploads%2FNJmlTpa0nkwEQi3CvYFU%2Fimage.png?alt=media&#x26;token=105be80e-1e75-460f-834c-9ac7b34bb52d" alt=""><figcaption></figcaption></figure>

{% hint style="warning" %}
Please keep the access key securely. In case of loss we will not be able to restore it.
{% endhint %}

**Approve list**&#x20;

Adding liquidity without processing fee is possible only from trusted merchant addresses. To do this, when making a deposit, the merchant must add his wallet address to the "white list".

<figure><img src="https://3581776959-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFe844yi2U8Swnqhi7iE8%2Fuploads%2F5sxa08XgbluFawbrrEMB%2Fimage.png?alt=media&#x26;token=6932b782-85ea-4091-9e04-8065db365aa4" alt=""><figcaption></figcaption></figure>