@Sasifgillani A key is an alphanumeric number that's 64 characters long.
Sasifgillani
@Sasifgillani
I did not gave him the key
Martook
@Martook
I believe he calls it your backup address.
I'm afraid it looks like you did, even though you may not have thought you did.
Sasifgillani
@Sasifgillani
Import address are with me i didn't shared that
It means i cant do anything right now
Martook
@Martook
@Sasifgillani When an Ethereum wallet is generated, you're given an address and a key. You are the only one in the world that's given the information. Now, if you were on an unsecured wifi connection, that key could have been stolen. There are other ways as well, but the bottom line is you've lost your ETH and there's no way to get it back.