How does Bitbuy work?

Could you please explain how Bitbuy operates? I'm curious about its functionality as a platform for cryptocurrency trading. How does a user sign up and get started with Bitbuy? What are the steps involved in buying and selling cryptocurrencies on the platform? Also, I'm interested in knowing about its security measures and how it ensures the safety of users' funds. Additionally, how does Bitbuy handle transactions and withdrawals? Is there a specific fee structure that users need to be aware of? I'd appreciate it if you could provide a detailed explanation of how Bitbuy works, as I'm considering using it for my cryptocurrency investments.