Please download the Authy App for your phone or computer (as a Chrome extension) and you will be able to use the tokens generated by it to sign in and to change your password.
When applying for a CoinfloorEX account you were sent a registration SMS that linked your mobile number with Authy 2FA. Any Authy App set up with the same phone number as provided when registering with us, will automatically list CoinfloorEX in your 2FA accounts list. 2FA is mandatory for all users at all times.
You can find more details on why the Authy app is advised over SMS here:
Please also complete the Authy app set up by going to settings and setting up a PIN or password to protect the tokens from any potential third parties. Please also access the Devices section to disable the Multi-device feature which should only be enabled while you're connecting other devices to your Authy account.
You should never share your Authy app access with anyone. If you allow anyone access to your 2FA tokens, you are endangering the safety of your account.
If you encounter any issues during the setup, you may find the below advice helpful: