Two-Factor Authentication (2FA) Guide & Troubleshooting – Binance.US

*Please Note: While Google Authenticator is the only listed authentication app in the Binance.US interface, most other 2FA apps that provide 6-digit codes are also compatible. You should still select 'Google Authenticator,' in that case. Please see here for more details and compatible 2FA app suggestions.

Binance.US requires all of our users to implement at least one method of 2-factor authentication (2FA) for their accounts. 2FA, or two-factor authentication, provides an extra layer of security to help protect users' funds and sensitive information.

With 2FA, users must enter not only their password but also a one-time code sent to either their phone text messages (SMS), a special application (such as Google Authenticator, or another authenticator app), or both (recommended for maximum security).

During sign-up with Binance.US, you will be prompted provide your phone number in order to establish a SMS 2FA method. If you lose access to your phone number or switch phone numbers at a later date, you will need to reset and re-enable your SMS 2FA to change the phone number associated with your account.

However, in addition to SMS 2FA, implement both SMS and an authentication app to further increase their account security. Alternatively, users can switch their SMS 2FA to an authentication app (such as Google Authenticator).

This guide will show you how to add and reset (disable) 2FA methods with or without access to your authentication code (in the case of a lost phone etc). It will also provide additional 2FA troubleshooting info and FAQs for your convenience.

To get started, select the scenario that you would like help with:

Add a 2FA method (SMS or Authentication App)
Reset your 2FA method (with or without access to your code)
Change the phone number associated with your account (with or without access to your SMS 2FA code)
Issues with a 2FA prompt or trouble logging in with 2FA
Troubleshooting other 2FA issues and 2FA FAQs

Note: Withdrawals will be disabled for 48 hours after resetting your 2FA Method.

How to add a 2-Factor Authentication method (SMS or Authentication App)

On the mobile app
On the web

Add 2FA on the mobile app

1. Tap your Profile Icon on the top-left side

2. Scroll down and tap Security

3. Tap either 2FA activated or 2FA deactivated (depending on if you have another 2FA method currently activated or not)

4. Select and tap on the Authentication Method (SMS or Google Authenticator*) that you would like to enable. Then, follow the instructions below for the 2FA method selected:

*You can also use most 2FA apps that provide 6-digit codes, while still selecting 'Google Authenticator' as your 2FA option. Please see here for more details and compatible 2FA app suggestions.

A) For Google 2FA Authentication (or another Authentication app):

Download Google Authenticator (or the app of your choice) on your phone from the iPhone App Store or the Google Play Store. Tap to proceed in the Binance.US app.
Make sure to save the 16-digit key displayed on the Binance.US app. This 16-digit key can be used to re-bind your account in case you no longer have access to your Authenticator app. You will also need it to complete this process. Tap to proceed in Binance.US, then, reenter the 16-digit key to confirm you've saved it. Tap to proceed once again.
Open your Google Authenticator app (or whichever authentication app you've chosen), tap the symbol or button indicating that you will add a new code such as '【+】,' 'New,' or 'Add.' Then, enter your 16-digit key to bind your authentication code app to your Binance.US account.
Return to the Binance.US app and tap to proceed. You will need to fill in your login password (for Binance.US), SMS text code (if enabled - tap 'Send SMS' to receive first), and the Authentication code currently displayed on your authenticator app.
Once all requested fields are filled, tap to proceed and Enable Authentication.

B) For SMS 2FA Authentication:

Enter your phone number and tap Send SMS.
Enter your Binance.US password and the code received via SMS.
If an authentication app is also enabled you will need to enter a code from the authenticator app as well.
Once all requested fields are filled, tap to proceed and Enable Authentication.

Congratulations on adding a 2FA method and making your account that much more secure.

Add 2FA on the web

1. Log in to your Binance.US account on a web browser

2. Click on your email in the top-right, select Account & Settings from the drop-down menu

3. Navigate to the Security tab in the top-left

4. Click on the Enable button next to the authentication method you would like to add (SMS or Google Authenticator*). Then, follow the instructions below for your chosen method:

A) For Google 2FA Authentication (or another Authentication app):

Download Google Authenticator (or the app of your choice) on your phone from the iPhone App Store or the Google Play Store. Then, click Next Step to proceed on Binance.US.

Make sure to save the 16-digit key displayed on Binance.US. This 16-digit key can be used to re-bind your account in case you no longer have access to your Authenticator app. You will also need it to complete this process. Click to proceed in Binance.US. You may be asked to reenter the 16-digit key to confirm you've saved it. Tap to proceed once again.
Open your Google Authenticator app (or whichever authentication app you've chosen), tap the symbol or button indicating that you will add a new code such as '【+】,' 'New,' or 'Add.' Then, enter your 16-digit key to bind your authentication code app to your Binance.US account.
Return to Binance.US and click to proceed. You will need to fill in your login password (for Binance.US), SMS text code (if enabled - click 'Send SMS' to receive first), and the Authentication code currently displayed on your authenticator app.
Once all requested fields are filled, click to proceed and Enable Authentication.

B) For SMS 2FA Authentication:

Enter your phone number and click Send SMS. You should receive a text with your Authentication Code.

Enter the code in Binance.US and click Enable SMS Authentication.
If an Authentication app is also enabled you will need to enter a code from the Authenticator app as well.
Once all requested fields are filled, click to proceed and Enable Authentication.

Congratulations on adding a 2FA method and making your account that much more secure.

Reset your 2-Factor Authentication method (with or without access)

Users may want to change or reset (disable) their 2-factor authentication method for a variety of reasons including loss of access, technical issues, switching devices, getting a new phone number, or simply wanting to use a different authentication type.

Please note that when you reset your SMS 2FA, it will also reset the phone number associated with your Binance.US account. To bind a new phone number to your account, simply add an SMS 2FA method.

This section is dedicated to resetting a 2FA method through your security settings. However, if you are receiving a prompt to enter your 2FA which you do not have access to (including at log-in), you can find more tailored instructions here. Otherwise please select your scenario below for instructions.

Note Once you reset your 2-Factor Authentication, there will be a 48-hour withdrawal hold on your account for security reasons, during which you will be unable to withdraw assets.

How to reset a 2-factor authentication method

On the mobile app
On the mobile app (continued, if you don't have code access)
On the website
On the website (continued, if you don't have code access)

Reset 2FA on the mobile app

*Please note: If you want to reset your 2FA method, you will need to follow steps 1-7 below, regardless of whether you have access to your 2FA or not. If you have 2FA access, you will also follow step 8. If you do not have 2FA access, please follow steps 1-7 below, then click the link provided in step 7 for users who do not have access to their codes.

1. Tap your Profile Icon on the top-left side

2. Scroll down and tap Security

3. Tap 2FA activated

4. Tap on the two-factor authentication you would like to reset (SMS or Google Authenticator*)

5. Tap Reset for your selected 2FA method

6. A pop-up window will appear asking if you want to proceed with resetting authentication. Tap Reset once more.

Note Once you reset your two-factor authentication, there will be a 48-hour withdrawal hold on your account for security reasons, during which you will be unable to withdraw assets.

7. Depending on which method (SMS or Authentication App) you are disabling:

A) To disable SMS authentication, enter your password, then:

If you have access to your 2FA phone number, tap 'Send SMS.' After receiving your 2FA code via SMS, enter it into the 'SMS Authentication Code' field. If you also have an authentication app enabled you may need to enter that code as well. Once all requested fields are filled, tap Confirm. Then, skip the next bullet point and proceed to step 8 below.
If you do not have access to your 2FA phone number, tap 'Issue receiving an SMS?' located below the authentication code field. Then, proceed below for instructions.

B) To disable Google Authentication (or another Authentication app), enter your password, then:

If you have access to your authentication app code, open it and copy your confirmation code into the labeled field back in the Binance.US app. If you also have SMS Authentication enabled, you may need to tap to receive an SMS code and enter that as well. Once all requested fields are filled, tap Confirm. Then, skip the next bullet point and proceed to step 8 below.
If you do not have access to your authentication app code, tap 'Can't receive a code?' located below the authentication code field. Then, proceed below for instructions.

8. If you have access to your code and entered it, you will be notified that your settings have been changed. You have now successfully disabled your 2FA method. If your 2FA reset attempt failed for any reason, please see here.

Without access to your 2FA code on the mobile app (continued from above)

*Please note: This section is for users who have completed steps 1-7 above, but who cannot access their 2FA code in step 7 above. To follow these steps and reset your 2FA without your code, you will need access to the same identification document you provided at registration on Binance.US.

1. Select the reason you can’t access your SMS/Google Authentication (or chosen authentication app) and then tap Next

Note: If you select Other, you will be asked to describe the issues you are having. This response will be sent to our team for review. If you select Security concerns, you will be directed to contact our Support Team.

2. Choose the Authentication Code you would like to reset. You can also reset both, if applicable. Once the selection is made, tap Confirm Reset.

3. Follow the on-screen instructions to upload the same identity document you used to register on Binance.US. You will be asked to perform a face scan to verify your identity.

17.5.1_Reset_2FA.png

4. Once your documentation has been received, Binance.US will review your information. You will receive a push notification and an email when your request to reset your 2FA has been approved. If you do not have any 2FA methods enabled you will be prompted to set up a new method the next time you log in.

If your 2FA reset attempt failed for any reason please see here

17.6.1_Reset_2FA.png

Reset 2FA on the website

*Please note: If you want to reset your 2FA method, you will need to follow steps 1-4 below, regardless of whether you have access to your 2FA or not. If you have 2FA access, you will also follow step 5. If you do not have 2FA access, please follow steps 1-4 below, then click the link provided in step 4 for users who do not have access to their codes.

1. Click Security in the menu in the top-right

2. Click on the two-factor authentication method you would like to reset (SMS or Google Authenticator*)

3. A pop-up window will appear asking if you want to proceed with resetting authentication. Click Reset once more.

Note Once you reset your two-factor authentication, there will be a 48-hour withdrawal hold on your account for security reasons, during which you will be unable to withdraw assets.

4. Depending on which method (SMS or Authentication App) you are disabling:

A) To disable SMS authentication, enter your password, then:

If you have access to your 2FA phone number, click 'Send SMS.' After receiving your 2FA code via SMS, enter it into the 'SMS Authentication Code' field. If you also have an authentication app enabled you may need to enter that code as well. Once all requested fields are filled, click Confirm. Then, skip the next bullet point and proceed to step 8 below.
If you do not have access to your 2FA phone number, tap 'Issue receiving an SMS?' located below the authentication code field. Then, proceed below for instructions.

B) To disable Google Authentication (or another Authentication app), enter your password, then:

If you have access to your authentication app code, open it and copy your confirmation code into the labeled field back in the Binance.US website. If you also have SMS Authentication enabled, you may need to click to receive an SMS code and enter that as well. Once all requested fields are filled, click Confirm. Then, skip the next bullet point and proceed to step 8 below.
If you do not have access to your authentication app code, click 'Can't receive a code?' located below the authentication code field. Then, proceed below for instructions.

5. If you have access to your code and entered it, you will be notified that your settings have been changed. You have now successfully disabled your 2FA method. If your 2FA reset attempt failed for any reason, please see here.

Without access to your 2FA code on the website (continued from above)

*Please note: This section is for users who have completed steps 1-4 above, but who cannot access their 2FA code in step 7 above. To follow these steps and reset your 2FA without your code, you will need access to the same identification document you provided at registration on Binance.US.

1. Select the reason you can’t access your SMS/Google Authentication (or chosen authentication app) and then click Continue

2. Choose the Authentication Code you would like to reset. You can also reset both, if applicable. Once the selection is made, click Continue.

3. Follow the on-screen instructions to upload the same identity document you used to register on Binance.US. You will be asked to perform a face scan to verify your identity.

If your 2FA reset attempt failed for any reason please see here

Issues with a 2FA prompt or trouble logging in with 2FA :

If you are prompted to enter a 2FA code from the log-in menu or on-site/app, and you do not have access to the code, you have the option to reset your 2FA method without your code on the mobile app. You can also chat with an agent on the web if you are unable to use the app (although downloading the app for the reset process is highly recommended). See the steps below for your device type:

Note Once you reset your 2-Factor Authentication, there will be a 48-hour withdrawal hold on your account for security reasons, during which you will be unable to withdraw assets.

On the mobile app (recommended)
On the web

2FA login/prompt issues on the mobile app

*Please note: to follow these steps and reset your 2FA without your code, you will need access to the same identification document you provided at registration on Binance.US

1. From the prompt or pop-up, tap Issue receiving an SMS/Google Authenticator* code (depending on what method you are using)

17.1.1_Reset_2FA.png

2. Choose the option labeled, I can’t access my phone number (or, Google Authenticator) anymore.

3. Once selected, a six-digit code will be sent to the email address associated with your Binance.US account. Enter the code on the Verify It’s You screen displayed on your Binance.US app

4. Once entered, you will be asked to select why you can’t access your SMS or Google Authenticator (authentication app). Select the answer which applies to your situation

5. Choose which 2FA method you would like to reset or select both, if applicable. Once a selection is made, tap Confirm Reset. Once you reset your 2-Factor Authentication, there will be a 48-hour withdrawal hold on your account, during which you will be unable to withdraw assets.

6. Follow the on-screen instructions to re-upload the same document you used for verification when setting up your account. You will be asked to perform a face scan to verify your identity.

17.5.1_Reset_2FA.png

7. Once your documentation has been received, Binance.US will review your information. You will receive a push notification and an email when your request to reset your 2FA has been approved. If you do not have any 2FA methods enabled you will be prompted to set up a new method the next time you log into the app

17.6.1_Reset_2FA.png

If your 2FA reset attempt failed for any reason please see here.

2FA login/prompt issues on the web

We highly recommend downloading the Binance.US app and following the app instructions as the easiest method to reset 2FA without access to your code. However, if you would still like to use a web browser and do not have access to your 2FA, you can contact support.

General troubleshooting & FAQs for 2-factor authentication

I only see Google Authenticator as an app choice, can I use other 2FA apps?
What if I have access to my phone but didn't receive an SMS code?
What if I have access to Google Authenticator, but the code is not working?
My attempt to reset my 2FA method failed or was delayed
Why do I need 2-factor authentication?

I only see Google Authenticator as an app choice, can I use other 2FA apps?

Yes. Even though our interface only mentions Google Authenticator, the majority of 2FA applications that utilize 6-digit TOTP (time-based one-time passwords) will work in Google Authenticator's place. The application must also use an initial 16-digit key to bind accounts (which is standard for most 2FA applications).

In this case, you will still need to select 'Google Authenticator' as your chosen 2FA method when given the option.

Although we recommend Google Authenticator (if possible), here are some popular alternatives that also support 6-digit TOTP codes:

Authy (iOS & Android)
Okta Verify (iOS & Android)
2FA Authenticator App (2FAS) (iOS only)
Microsoft Authenticator (iOS & Android)
Duo (iOS & Android)
LastPass (iOS & Android)
Most other authentication applications that support 6-digit TOTP codes

In each of these cases, the instructions in the above guide should also apply or be suitable for these apps. If you find that the instructions above do not apply, we recommend consulting your authentication app's help guide, or, confirming that the app in question supports 6-digit TOTP codes.

What if I don't receive an SMS code?

If you're unable to receive the SMS authentication code, please try the following:

Make sure that you are in a location with a strong cellphone signal/Wi-Fi.
Close anti-virus software and/or firewall applications on your cellphone.
Restart your cellphone and try again.

If you still cannot receive your SMS authentication code, please chat with an agent. Be prepared to provide your cell phone number, device type, (iOS/Android) version, and your location. Alternatively, you can also attempt to reset your 2FA method.

What if my Authentication app code isn't working?

If your Google Authentication code for Binance.US is not working, please try the following:

In the Google Authenticator app, tap: Settings > Time Correction for Codes > Sync Now.
Restart your cellphone and try again.

If you still cannot receive your Google authentication code, please chat with an agent. Be prepared to provide your device type and (iOS/Android) version. Alternatively, you can also attempt to reset your 2FA method.

If you're using another authentication app and having trouble, we recommend consulting your authentication app's help guide, or, confirming that the app in question supports 6-digit TOTP codes.

My attempt to reset my 2FA failed or was delayed

If your attempt to reset a 2FA method failed, please try the following:

Ensure you verified the email sent by Binance.US. If you do not see the email check your 'Junk' or 'Spam' folders and make sure you have whitelisted Binance.US emails.
Check that the information and identity document submitted via Jumio (if necessary) matches the information and identity document you submitted when registering on Binance.US.
If you are using a different device, or are in a different timezone or location than normal this may have caused the attempt to fail for security purposes. Please chat with an agent for additional information if necessary.
If all else fails, you may want to try again or chat with an agent for additional support if necessary.

Why do I need 2-factor authentication?

Binance.US requires all of our users to implement at least one method of 2-factor authentication (2FA) for their accounts. 2-factor authentication (2FA) adds an additional layer of security to your account.

Instead of merely needing access to your password, an attempted hacker or unauthorized individual would also need to access to your device and receive the temporary code before its expiry to gain unauthorized access or withdraw funds. This makes gaining unauthorized access that much more difficult and helps to keep your funds and private information safe.

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