# Enable the two-factor authentication

Two-factor authentication (2FA) is an additional security feature that requires users to enter a six-digit verification code when logging into their accounts. This greatly enhances account security and effectively prevents unauthorized access. 

For the safety of your account, we recommend setting up Two-factor authentication immediately after registering to provide an extra layer of protection.

**How to link Two-factor authentication？**

1. Enter UniSat [Developer Center](https://developer.unisat.io/dashboard), click on the avatar on the right side of the page and select '**2FA Setting**' from the dropdown menu.

<figure><img src="/files/0X4oQamAWkZnmF0NeNbR" alt=""><figcaption></figcaption></figure>

2. Before binding 2FA, you need to confirm your email to ensure the operation is authorized by you. Click '**Send Code**' on the page, input the verification code received in your email, and click '**Submit**' to enter the 2FA binding page.

<figure><img src="/files/Yq5bQiZe2OdU2F560lHE" alt=""><figcaption></figcaption></figure>

3. Follow the instructions on the page to first download and install an **authentication app**.&#x20;

iOS: Search **Google Authenticator** in the App Store

Android:  Search **Google Authenticator** in Google Play or use [this download link](https://play.google.com/store/apps/details?id=com.google.android.apps.authenticator2)&#x20;

Then, use the authenticator app to scan the QR code on the page and enter the six-digit verification code in the authentication app.&#x20;

<figure><img src="/files/XptdHH1l89LrOa9nCVOS" alt=""><figcaption></figcaption></figure>

4. Now you are done with 2FA! And of course, you can also disable 2FA if needed.

<figure><img src="/files/iX3DMVQWvqKyxCkYLfsm" alt=""><figcaption></figcaption></figure>


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