USDT is already paired by USD and there is no need also to convert it to btc. However you need to do KYC of course knowing that it is all about money transfer and probably it involve high amount transaction. In this case you need to secure also your account or wallet for your safetly like saving all important details of your account so when whenever you will forget pass you can easily remember it with your back up.
Aside from that two way factor also must be activates in any case your account will be compromised. It will take hard time for the hacker to transfer crypto in your wallet.
And that is why you hold your own keys and do not trust centralized solutions and passwords.
Also you always have the option to create a wallet and then pass the seed phrase although that is a point of attack just like a password would be.
