You can send that cash back to your linked bank account.
If you use a centralized exchange, you will need to go through a process. This typically involves: Providing your email and creating a strong password. Uploading a photo of a government-issued ID. buy and sell digital currency
Fast, but often come with high convenience fees (3-5%). You can send that cash back to your linked bank account
Physical hardware devices (like Ledger or Trezor) that keep your private keys offline, making them nearly impossible to hack. making them nearly impossible to hack.