How to transfer BTC to Cash App?

How would one go about converting their Bitcoin holdings into cash through the Cash App platform? Are there any specific steps or considerations one should take to ensure a smooth and secure transaction? Could you please outline the process, from initiating the transfer to receiving the funds in their Cash App account? Also, is there a fee associated with this type of conversion, and if so, how is it calculated? Lastly, what precautions should users take to protect their BTC and personal information during the transfer process?