How to purchase CFR?

How would you recommend going about purchasing CFR tokens? Is there a specific exchange or platform that you would suggest using for this purpose? Additionally, are there any important steps or precautions that I should be aware of before making a purchase, such as ensuring the security of my wallet or researching the team behind the project? It would be great if you could provide a step-by-step guide on the process of purchasing CFR tokens, as well as any potential risks or limitations that I should be aware of.