> ... These wallets are meant to initialized by a "seed" and there's a protocol to easily write down that seed... Yes. That's a thing with some HSMs, too. That

> ... These wallets are meant to initialized by a "seed" and there's a protocol to easily write down that seed... Yes. That's a thing with some HSMs, too. That's where I've had experience with this kind of protocol. As it stands Yubico's tokens are unusable to me for personal purposes because they can't be backed-up and restored.