Trezor is a hardware walletβa physical device that stores your private keys offline. Unlike software wallets or exchange-based wallets, a hardware wallet like Trezor keeps your keys isolated from internet-connected devices, making it significantly harder for hackers to gain access.Hardware wallets solve this problem by giving you full custody of your keys. βNot your keys, not your coinsβ is a popular saying in the crypto spaceβand Trezor ensures that your keys stay in your hands.