Which details you have about the person? I doubt none. It is not good to backup seed phrase or private key online, the best is to backup offline and it should be safe from attackers and damage. But, having in online, thinking it is safe from online attackers is not correct, nothing online is safe. I doubt if you will be able to recover back the stolen funds, it is all gone. Sorry.
I know the organization(s) that have the name, email, phone number, address, and credit card used by the hacker, This organization(s) refused to revel this information to me without legal order