> For the complete documentation index, see [llms.txt](https://docs.0xprocessing.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.0xprocessing.com/quick-start/account-security.md).
# Account security
Discover tips and best practices for securing your crypto payment gateway account, ensuring protection and reliability for your operations.
## Two-factor authentication
Two-factor authentication adds an extra layer of security to sensitive account actions.
Enable 2FA as soon as possible under Settings → Security.
Follow the on-screen instructions to connect an authenticator app.
{% hint style="warning" %}
Store the recovery key securely. 0xProcessing cannot recover this key if it is lost.
{% endhint %}
### **Address book**
The Address Book feature allows users to securely save and manage trusted cryptocurrency wallet addresses for future withdrawals. Before initiating a withdrawal, users can select a previously saved wallet from the Address Book instead of entering the address manually.
### **Sessions**
Session Management allows users to monitor and control active account sessions across devices and locations. For each session, users can view the device type, browser, IP address, login time, and last activity.
For security purposes, users can terminate individual sessions or log out from all devices except the current one. The system may also notify users about new logins, suspicious activity, or access from unknown devices.
