Hardware Wallets Just Got a Bit More Secure With Trezor’s Shamir Backups
If hardware wallets have one Achilles’ heel, recovery seeds may be it. But Trezor’s SatoshiLabs has figured out a solution. Hardware wallets are generally considered to be among the most secure solutions for storing bitcoin. As the private keys to sign transactions never leave the device, these keys are never exposed to the internet and can, therefore, not be hacked remotely. Even with physical access to the device, subtracting the keys is no straightforward job — if it’s possible at all. (This appears to be an ongoing cat-and-mouse game between security researchers.) But even if we assume that they are secure, hardware wallets can still break, get lost, get stolen or become otherwise unusable. For these cases, users should keep a backup seed: a …