In the crypto world, 'asset security' is more important than your ability to make money. Many newcomers to the space don't understand 'hot wallets' and 'cold wallets,' their respective features, and their value. So today, let's talk about hot and cold wallets. What is a hot wallet? All exchange wallets (like OKX Wallet, Binance Wallet, etc.), including third-party wallets like MetaMask. Advantages of hot wallets: Convenient for trading, buy and sell instantly, suitable for frequent transactions. Disadvantages: Hot wallets need to connect to the internet, which comes with risks of hacking. There have been cases of platforms shutting down or small exchanges running off with funds. The risk is lower with major exchanges. What is a cold wallet? Offline hardware devices (e.g., Ledger, Trezor) that don't require an internet connection. Advantages of cold wallets: Private keys never touch the internet, making the risk of theft extremely low. Suitable for large assets that you don't plan to move for a long time. However, it's not very convenient for frequent trading. The most fatal misconception about cold wallets: Saving the private key of your cold wallet on your phone, including screenshots. If your cold wallet gets hacked, there's no one to turn to. Hot wallets are like banks—if your money disappears, you can contact customer service or the bank. Cold wallets, on the other hand, are like running your own bank. Security is the '1,' and wealth is the '0' that follows. Without the '1,' no matter how many '0s' you have, it's meaningless.