hi all I'm new to trading I'm hoping someone can help me out here I purchased a good bit of ethreum on the coinbase platform I made a ether wallet I had all the accounts and my security accounts saved I accidently transferred my ethreum from coinbase to the wrong address that being my private key address I went under the etherscan and sure enough its sitting in my private key address instead of my wallet account I contacted coinbase and explained the situation thinking the worst they explained to me that basically it will be sent back to them but it may take awhile and it would be credited back to my ethreum wallet on their platform .I am just curious if this has ever happened to anyone else and if this is correct what they are saying thank you
Firstly, you shouldn't share your private key, even with tech support for a company. But then again, you sent ether to it so it's already out there, so this is a weird case. Don't use the account the key is associated with. It's compromised!
Secondly, to sign transactions from that account, you'd need the private key for the account associated with the address you sent ether to. And you do not (nor, presumably, does anybody else) have the private key associated with the private key associated with that account. As such, nobody can access that ether if Ethereum is working correctly.
I'm not sure how Coinbase plans on undoing that transaction which your post suggests they can, so I'm guessing what you heard is not correct.
Uh... I just realized I didn't actually answer the first half of your question. I'm guessing you're not the first person to have done this, but having not met such a person myself, I cannot say for certain.
If you can see the Ether in Etherscan under your Private Key there is nothing you can do. Only the user which has the Private Key belonging to the (in your case wrong...) Public Key can access that account. Since Coinbase does not have the private key they cannot access it.
Also your private key is now visible on the blockchain. Even if you did not tell the address to the person at CoinBase he can still see it if he knows the transaction......
So you should move all funds form the compromised address to a new one.
And always make a small transaction first to make sure you are using the correct addresses