Cold wallets are usually hardware wallets or offline storage devices that are disconnected from the internet. Cold wallets focus more on security than hot wallets because sensitive information such as private keys are not transmitted over the network. This design makes cold wallets suitable for holding cryptocurrencies for a long time. Since cold wallets are not online, they can effectively prevent hacking attacks and cyber threats, giving holders a greater sense of security. Therefore, cold wallets are an ideal option for those users who value security and long-term investment more.