Uniswap is a decentralized exchange which is why it is very easy for anyone or any scam project to just list their fake defi token and get people to buy in, it has been said on several occasions that investors should be extremely careful when transacting in Uniswap, it is very easy to fall victim if all the necessary precautions are not applied,

Before making any transaction, be sure to check the contract address of that project from coingecko or cmc and not convince ask in the project telegram group and compare with what is on uniswap (this is very important),  lots of fake defi's out there it is up to us to identify them before having regrets.