On the My Account page, click on the Security and Two-Factor Authentication link to enable or disable two-factor authentication.
Your customers can require you to use two-factor authentication to access their data in the CSP, in which case you have to enable it.
Enabling Two-Factor Authentication
If you want to receive SMS notifications, you must enter and validate your phone number under Mobile Phone Verification.
Under Two-Factor Authentication, click Enable and follow the on-screen instructions for installing and using Google Authenticator.
Choose Remember this computer for 30 days if you're not using a shared or public computer, and click Enable.
Print your backup codes or email them to yourself before you click OK. If you ever lose your device, you need these to regain access to your CSP account.
You can only use a recovery code once, so it's a good idea to refresh your list if you have to use a recovery code. Go to Account Settings > Security & Two-Factor Authentication and click Regenerate Recovery Codes to get a new list of codes.
Disabling Two-Factor Authentication
Under Two-Factor Authentication, click Disable and, in the appearing window, enter your CSP password and click Disable Two-Factor Authentication.
If you enable or disable two-factor authentication, you get an email notification of the change.