> ## Documentation Index
> Fetch the complete documentation index at: https://docs-en.keysecure.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Biometric Verification

## Function Introduction

Biometric technology is a type of physical characteristic recognition technology that verifies identity by recognizing personal biological characteristics. Because biological characteristics are unique and difficult to fabricate or duplicate, they are more secure than traditional passwords or PIN codes. The Keysecure App allows users to enable biometric verification for password-free payments or operations, and verification can be completed using their own biological characteristics. This reduces the hassle of entering passwords or GA verification codes, making user operations simpler and smoother.

However, while biometric technology brings many conveniences, it also involves considerations of privacy and security. Please consider all factors when deciding whether to enable biometric verification.

## Operation Procedure

**1. Enter Biometric Verification Function**

Click on the personal avatar in the upper left corner, and select 【Security】

![](https://mintcdn.com/keysecure-en/U8Qkwr5UOHzcbJEo/images/custody-guide/personalen.png?fit=max\&auto=format\&n=U8Qkwr5UOHzcbJEo\&q=85\&s=4ee2be15f73d156fd7a44af7853c3227)

![](https://mintcdn.com/keysecure-en/U8Qkwr5UOHzcbJEo/images/custody-guide/sercuity.png?fit=max\&auto=format\&n=U8Qkwr5UOHzcbJEo\&q=85\&s=fae984dcf720b9d764e5dc034cdf145f)

**2. Enable Biometric Verification for Different Scenarios**

#### A. Password-free Operations

In this mode, you can use biometric verification as a substitute for Google Authenticator. Relevant scenarios include managing team members and whitelist addresses.

#### B. Password-free Payments

In this mode, you can use biometric verification as a substitute for Google Authenticator. Relevant scenarios include withdrawal and transaction approval.

## Frequently Asked Questions

> [accordion] Why can't I enable biometric Verification?
>
> Please note that the following situations may prevent you from enabling biometric verification:
>
> 1. The local device's biometric function is not authorized for the Keysecure App.
> 2. The local device has not enabled the biometric function, so the app cannot read the biometric information.

> [accordion] Why is biometric verification invalid or unusable?
>
> Situations where the biometric verification function automatically shuts down or becomes unusable:
>
> 1. The local device's biometric information has been modified, for example, a new face or fingerprint has been added.
> 2. The local device's biometric function has been turned off or the authorization has been cancelled.


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