How to quickly buy BNB?

Could you please elaborate on the process of purchasing BNB quickly? I'm interested in understanding the steps involved, from choosing a reliable exchange platform to making the actual purchase. Could you also highlight any important considerations or safety measures I should be aware of? Additionally, I'm curious if there are any specific features or advantages of using certain platforms for purchasing BNB that you would recommend? Finally, could you provide an estimate of how long the entire process typically takes? Thank you for your assistance.