I have encountered many service offers to recover lost or stolen crypto/Bitcoin, both on forum sites and on personal websites, they claim to consist of several experts in their field, and are able to return lost crypto. Cryptocurrency/Bitcoin that has been transacted cannot be canceled, let alone to be returned to the owner, of course the lost crypto recovery service will ask for an upfront fee whose amount will depend on the lost crypto. So I think crypto/Bitcoin that has been lost or stolen will be very difficult or impossible to recover, what do you think?