What is 2FA? | tZERO Help Center

Two Factor Authentication is a verification step required for all tZERO Securities accounts to help keep your account secure.

We support 2 methods of 2FA: SMS and Google Authenticator.

SMS 2FA - US ONLY

1. Ensure that you have a North American phone number and can receive SMS messages.

2. Ensure that you have checked your phone for a verification code, sent via SMS, from tZERO Securities.

3. SMS codes are valid for 5 minutes - if you do not enter your code within that time frame and need a new one, you can request a new code by clicking "Did not get code: link and following the instructions.

4. If you request a new code, the prior one will be disabled.

5. Connect with our support team to get additional assistance.

Google Authenticator - US and International

1. Download the Google Authenticator app for your mobile device.

   • iOS

   • Android

2. Log into your Google account.

3. Scan the QR code that appears on screen during onboarding.

4. If you request a new code, the prior one will be disabled.

5. Input the 6 digit code before it refreshes a new code. If the code refreshes, be sure to input the code that is valid in the Authenticator app.

For questions regarding your Secondary Trading account, contact support@tzero.com

For questions about investing in a Primary Issuance, contact investor_support@tzero.com