the acc might be hacked also that is for consideration.
that other people beside the owner has access to login into acc.
i have experienced above case.
I do not see any association between the account being hacked and the wallet being sold. Even if the account is hacked, the wallet sale will not affect.
brokk, how will you sell your ETH wallet? I mean the way you send your wallet to the buyer, maybe send private key or json file? How do you make sure you don't access your wallet again and take it all away?