Coinbase defi liquidity mining scam. They give you the eth-dhtt[removed by editor] link and ask you to put into your Coinbase wallet URL under the pretense of it being a high yield mining pool hosted on the Coinbase app... Looks 100% legitimate and you even see money in wallet increasing. Problem is they have access to your 12 word key phrase so once you put in amount they want your toast and they've got you. They'll find you most often in FB messenger through financial groups, etc. Stay vigilant.