There are some idea to stop hackers to hack your crypto wallet. First, Get a hard wallet: The safest option is to keep your private keys away from the internet, so that hackers cannot steal them. For this reason several companies developed usb key like wallets that allow you to store your Bitcoin offline and protect them with strong encryption and a PIN code, so it's called hardware wallets or hard wallets. Second, Use Two Factor Authentication: If the wallet offers a two-factor authentication (2FA) take it. This means that if someone had access to your login details, they would also need your phone to get the 2FA code. Third, Don’t Use Public Wi-Fi: Never use public Wi-Fi networks or public computers to make any transactions. Doing so will ensure that nobody can ever know your password and use it for stealing away from you. Forth, Do create backups: Kept in a secure place, a backup of your cryptocurrency wallet may save you from hardware failures and a lot of human slipups. It will also let you restore your wallet in case your PC or telephone gets stolen. Fifth, Keep Private Keys Offline: If you have wallets on your computer, always store your private keys offline either on an external hard drive or as a hard copy, stored someone in your house. If someone gains access via malware or public Wi-Fi, this allows you to limit what they can find or take, which buys you time to realize that your device is comprised before anything important is stolen.