How to use CFX?

Could you please elaborate on the usage of CFX? I'm quite interested in understanding its functionalities and applications. Could you guide me through the process of setting it up and getting started? Also, are there any specific prerequisites or requirements that I need to fulfill before I can start using CFX? Additionally, I'm curious about its security features and how it ensures the safety of my transactions. Would you mind providing some insights into that as well? Thank you for your help in answering these questions.