Key entry typically requires two authorized "custodians," each entering one half of the key to prevent any single person from knowing the full 32-digit value. Zero Visibility: Retailers and merchants

When entering the key into a software prompt, ensure the string strictly adheres to hexadecimal format: It must be exactly long.

But what exactly is this 32-character hexadecimal string? Why does it matter for CVV (Card Verification Value) encryption? And most importantly, how do you correctly enter it without compromising your system?