<prompt> Human: Im guessing that in these situations, the money is simply unobtainable lost forever. Is that a correct assumption? Or, do banks have to do their own due diligence to find out if their client is deceased?  <response>: If its truly hidden, look at the passport stamps to see if they were going somewhere often to maybe get a good hint.If they were doing electronic transfers, its likely going to be on tax documents. 