
Learn what a CVV is and how it affects payment processing. Start here for key terms and how to use CVV checks to prevent credit card fraud. CVV, iCVV and CVV2 may be found on the physical card in the magnetic stripe, expiration date and service code and are calculated by. DES Calculator (Single DES, Triple DES (3DES)), XOR, AND, OR Bitwise Calculator, Card Verification Value Calculator (CVV Calculator, CVC Calculator.