Crypto vaults are the "fortresses" of the digital asset world. By trading away the instant convenience of a wallet for the deliberate friction of time-locks and multi-signature approvals, vaults provide a vital layer of defense against theft and human error. Whether you are a retail user protecting your life savings on an exchange or a DeFi pioneer using automated smart contract vaults to earn yield, understanding how to "lock down" your assets is the most important step in your security journey. Remember: Wallets for spending, Vaults for defending.