Bitcoins are a virtual crypto currency with no physical existence. A person can store Bitcoin in a secured De-Fi wallet or a blockchain account. Those details must be saved with utmost privacy. Hence, in the case of the death of a person, there are chances, those details get buried forever. That means it will be impossible to recover those coins again. However, the person can decide whether to rely on offspring or siblings to share the details, in case it is required after a death.