By the way this is another place multisig would be incredibly useful. You can have all your balances be secured by a 2-of-4 multisig where one key is the one on the hot client (which could also update votes and claim yield for convenience), another key is one stored on a paper wallet / flash drive and only used with an offline live Linux environment, another key is one controlled by some multisig security company, and the fourth one is a key that was generated on an offline computer, split into multiple parts using a secret sharing algorithm, each part of the key was encrypted on the offline computer specifically for a particular trusted BTS user (like friends and family), and then the encrypted key fragments were broadcast to the respective users.
If you lose your hot client key, you can use your offline backup and the multisig company's keys to get access to your funds.
If you lose both your hot client key and your offline backup (say your house burns down or it was robbed, and also you didn't have any encrypted cloud backups), then you can still get access by going to your friends and family, getting the key fragments from them, putting it back together and using that along with the multisig company's key to get back access to you funds.
If the multisig company disappears and your house was robbed, but you still have your phone that has the hot client key on it, you can use that and the reconstructed key from your friends and family to get access back to your funds.
If you die and the hot client key is inaccessible because no one alive knows the password. Your friends and family could recover the funds using the plaintext paper backup in your home and their reconstructed fourth key. If the paper backup was also encrypted, they can prove to the multisig company that you are dead, prove to them that they are the beneficiaries of the deceased, and use the company's signature along with the reconstructed key to get access to the funds.
So many possibilities become available with multisig.