On Sunday at CES, the crypto wallet company Ledger revealed its latest device — the Bluetooth-enabled Ledger Nano X. The device is roughly similar to the previous Nano S, offering more support for multiple wallets and coin types but leaving internals otherwise the same. But Bluetooth will allow the X to connect to mobile devices through the new Ledger Live app, a powerful new way to access hardware wallets through your phone.
Hardware wallets let you hold bitcoin locally without keeping them in an exchange, a more flexible version of simply writing down your key on a piece of paper. The devices typically require a PIN to unlock and support multiple physical devices tied to the same key, providing strong protection against theft or...