With a hardware wallet, your Monero keys stay on the device: Biscuit asks it to sign each payment, and you confirm on its screen. This covers Monero; Bitcoin and Litecoin in Biscuit keep their own seed in your encrypted wallet file.
| Ledger | Nano S, Nano S Plus, Nano X, Stax, Flex |
|---|---|
| Trezor | Model T, Safe 3, Safe 5 |
The Trezor Safe 7 isn’t supported yet: it uses a new communication protocol that Monero’s code doesn’t speak yet.
To check an address on the device’s screen, right-click it on Receive › Show on device. Building a payment on a device can take a minute or more.
Linux needs udev rules before Biscuit can reach the device. Install them once, from Ledger or Trezor, then reconnect the device.