How do I buy on AltCoinTrader?

Hello there, I'm a bit of a novice in the world of cryptocurrency trading and I've heard that AltCoinTrader is a popular platform for trading altcoins. However, I'm not entirely sure how to go about buying on AltCoinTrader. Could you please guide me through the process? What steps do I need to take to set up an account, fund it, and start buying altcoins on the platform? Also, are there any security measures I should be aware of to ensure the safety of my funds? Thanks in advance for your help!