The Trezor [1] hardware device supports backing up (at initialization) and restoring of the secret seed which is quite useful. It can also be used as a password

The Trezor [1] hardware device supports backing up (at initialization) and restoring of the secret seed which is quite useful. It can also be used as a password manager [2]. [1] https://blog.trezor.io/secure-two-factor-authentication-with-trezor-u2f-e940fd5a60af https://blog.trezor.io/secure-two-factor-authentication-with... [2] https://trezor.io/passwords/ https://trezor.io/passwords/