> For the complete documentation index, see [llms.txt](https://support.storefront.co.za/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.storefront.co.za/features/stores/store-settings/customer-accounts-and-sign-up/two-factor-authentication.md).

# Two-factor authentication

Two-factor authentication requires your customers to confirm their identity with a second check when they sign in, on top of their password.

This matters most for stores holding trade accounts, saved addresses or stored credit, where a compromised customer password could be used to place orders in someone else's name.

### How It Works

When it is switched on, a customer signing in enters their password as usual and is then asked for a second confirmation before reaching their account.

### How to Enable Two-Factor Authentication

1. Select the store you would like to update
2. Click on Manage Store Settings underneath Settings
3. Open Customer Accounts & Sign-Up
4. Open the Two-factor authentication section
5. Switch the setting on
6. Save your changes

{% hint style="info" %}
This setting applies to your customers signing in to the storefront. Sign-in to the back office is covered under Signing In.
{% endhint %}