How to purchase a Hive?

Excuse me, could you please elaborate on the process of purchasing a Hive? I'm quite new to the cryptocurrency world and I'm interested in acquiring some Hive tokens. What steps should I take to successfully make a purchase? Are there any specific platforms or exchanges that you recommend for buying Hive? Additionally, are there any security measures I should keep in mind to ensure a safe and smooth transaction? Thank you in advance for your guidance.