A HW wallet, or hardware wallet, is a physical electronic device designed for the secure storage of private keys to cryptocurrencies. The private key acts as a master password that allows the owner to access their digital assets and perform transactions. The main principle of a hardware wallet lies in keeping these keys in an isolated environment, completely separate from a computer or mobile phone and thus from the internet. When a user wants to send cryptocurrency, they prepare the transaction in a software application, but its final confirmation, the so-called digital "signature," takes place directly in the hardware wallet. The private key thus never leaves the secure environment of the device and does not enter the computer, which could be infected by malicious software. The user verifies the transaction details, such as the recipient's address and the amount, on the wallet's display and confirms it by pressing physical buttons. In case of loss, theft, or destruction of the device, a recovery phrase is used, known as a "recovery seed," which is a set of usually 12 to 24 words generated during the initial setup. Using this phrase, it is possible to restore access to funds on any other compatible wallet.