Two-Factor authentication allows you to have an additional layer of security to your account.
You have to have your phone number verified in order to use SMS 2FA, simply verify your phone number from the settings page: "https://login.nashmarkets.com/settings".
You can follow this step-by-step guide on how to verify your number: "click here"
To enable SMS 2FA simply click the Enable 2FA via SMS button on the Settings page. Then you will be asked to enter the one-time six-digit passcode that is sent to your phone.
When you get the code, enter it on the screen and click on Submit. If you did not get the code on your mobile phone, please click the Resend OTP button (You resend the code once every 20 seconds). If still not received please switch your device off and on again.
Your account will now have 2FA enabled. Each time you log in, you will be required to enter a one-time passcode sent to your phone.
To disable SMS 2FA, you need to go to Settings and click on Disable 2FA. You will then need to enter a OTP to disable this security feature.