> For the complete documentation index, see [llms.txt](https://finchain.gitbook.io/finchain-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://finchain.gitbook.io/finchain-docs/en/safety/authenticator.md).

# Authenticator

The authenticator provides additional security when anyone other than yourself attempts to use your FinChain account.

### Activate the authenticator

When using certain asset or account-related features, you may be asked to activate an authenticator. Please follow the prompts to complete the authenticator setup.

{% stepper %}
{% step %}

### Download authenticator App

Frequently used authenticator applications are as follows:

[Google Authenticator](https://support.google.com/accounts/answer/1066447)

[Microsoft Authenticator](https://support.microsoft.com/authenticator/download-microsoft-authenticator)

[Authy](https://www.authy.com/download/)

Skip to next step if you have already install the authenticator app.
{% endstep %}

{% step %}

### Create

Use apps like Google Authenticator or Authy to scan a QR code or create a dynamic CAPTCHA using a password.

(1) Create a CAPTCHA by scanning the QR code displayed on the page, or

(2) Create a CAPTCHA by copying a password into an authenticator app.
{% endstep %}

{% step %}

### Activate

Enter the one-time verification code displayed in the authenticator application on the page and click the "Activate Authenticator" button.
{% endstep %}
{% endstepper %}

### Remove the authenticator

{% hint style="danger" %}
Removing this verification method will reduce the security of your account and restrict the use of some functions. If you believe that your current verification method has been compromised, please reactivate the authenticator after removing it.
{% endhint %}

When removing an already bound authenticator, we will request several existing security authentication methods from you. If one or more of your security authentication methods are no longer available, please contact our customer support team for further assistance.