How do I cash out large money from crypto?

Could you please explain the process of withdrawing a large sum of money from cryptocurrency? I'm interested in understanding the steps involved, any potential fees or taxes that may apply, and any recommendations you might have for ensuring a smooth and secure transaction. Additionally, I'd like to know if there are any specific risks or challenges associated with cashing out a large amount of crypto, and how I can mitigate these risks. Thank you for your assistance in clarifying this process.