if everything happens with unvalidated documents, why we never hear about falsaries emptying bank accounts? e.g. if I hide all my money in a trustee fund with

if everything happens with unvalidated documents, why we never hear about falsaries emptying bank accounts? e.g. if I hide all my money in a trustee fund with an unregistered document, and I get it back by showing the bank the trust contract plus a signed document from the trust asignee, and none of those are registered anywhere (which the article calls secret documents), wouldn't it be trivial to falsify both of them, specially now that most accounts became public?