Bitcoin in your computer is encrypted with a password and keep it in a safe offline computer. We have control over our own keys so we will have the same balance on both lines, raising our total bitcoin balance efficiency. Much better to read more here to know that the bitcoin hardware wallet is immune to any keylogger virus or any vulnerability that affects your bitcoin wallet .. https://en.bitcoin.it/wiki/ Hardware_wallet & can use personal keys like electronics or even Bitcoin's core electronic wallet and have personal keys printed on a sheet and save another copy on a flash drive and ask them sent to two different banks.