Keevo is similar to Ledger X because it can utilize both USB and Bluetooth connections. It supports buying, selling, trading, staking, managing NFTs, but no DAPPs. The Trezor uses a USB cable to connect to the PC to carry out transactions. Many experienced traders prefer the Trezor because it is can be used with other third-party Apps outside of Trezor’s PC App. Trezor’s best specialty is its open-source software. Trezor is the first company to manufacture hardware wallets for the masses. It supports buying, selling, trading, accessing DAPP, managing NFTs which makes it a very useful wallet. Using Bluetooth allows the Nano X to connect with a smartphone as well to carry out transactions. The newest model, the Nano X, uses both USB and Bluetooth. Ledger’s most famous product, the Nano S uses a USB to connect with a computer to carry out transactions. ![]() Nevertheless, recent device hacks and database hacks have created many discussions online. With their simple device design that looks like a USB stick and affordable pricing, the Ledger is an easy choice for many. They hold the advantage of being one of the first companies to manufacture hardware wallets. The Ledger brand is the most popular hardware wallet brand in the world. Here are some popular non-air-gapped hardware wallets in the world. Air-gapped hardware wallets are called “Cold Wallets”. Until today, there haven’t been any hacking reports of an air-gapped device, proving its superior security. You can imagine how other types of connections such as Bluetooth, WiFi, Cellular, NFC can provide even more attack vectors for hackers.Ī fully air-gapped device does not allow any loophole for hackers to exploit. Fifteen years old hacker Saleem Rashid managed to hack the Ledger Nano S by connecting it to his PC through a USB cable and supplying malicious code to the wallet.įrom this example, you can understand how connections lead to insecurity. Why is it Important for Hardware Wallets to be Air-gapped?Ĭapable hackers always find a way to hack hardware wallets, as shown in the past: ( Breaking the Ledger Security Model | Saleem Rashid). An air-gapped device is a device that is fully isolated and can never be connected to anything. By connection, we mean anything that connects the device to another device or the internet, such as USB, Bluetooth, WiFi, Cellular, NFC. Some are considered cold wallets and more secure because of their air-gapped nature.Īir-gapped is a state where a device is completely isolated from any form of connection. ![]() There are several brands of hardware wallets out there.
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