Someone offer me that we can earn with our old ETH Address How's thay possible? He wants me to give my Private Key of my old address. The ETH ADDRESS that he want to access doesn't have anything. (But this is likely a scam).
ETH is having some huge development this year especially with its price in the market and therefore, you can witness such good to be true offers all around the internet which more likely a scam. Sometimes they offer you some giveaway and sometimes a trick such as this one. they just really want to access your account via private key and once you give them those things, Boom! your wallet is finished and they will disappear like nothing has happened and the result cannot be undone so you got to be careful when dealing with these guys. it is better to ignore them or blocked them before they give you some weird offer which is doesn't really exist in the first place.