How to purchase Uniswap?

Could you kindly explain to me the process of purchasing Uniswap? I'm new to this and would appreciate a step-by-step guide. Could you tell me which exchanges or platforms support the purchase of Uniswap? Do I need to create a wallet first? Also, what are the associated fees and risks I should be aware of? Would it be possible to store Uniswap in a hardware wallet for added security? Thank you for your assistance.