How to buy Ethereum on Binance app?

Hey there, I'm curious about purchasing Ethereum on the Binance app. Could you give me a step-by-step breakdown of the process? Specifically, I'd like to know if I need to set up an account first, how to fund it, and the exact process for purchasing Ethereum. Also, are there any fees or security measures I should be aware of? I'm new to this, so the more detailed you can be, the better! Thanks in advance for your help.