Hello to all. So I have recently been approached by someone who says they work for blockchain about pool mining. They asked for an email address so i made a new one and gave them that email. they set up a blockchain wallet. Then they told me to change the password. my question is does it really matter if i do that? if they set the account up do they have access to the account even if i do change it? I would like to find out wtf is going on here. I have the dudes instagram info and his email address and also one of his supposive superiors email addresses if that can help verify whats going on.