What is CCV no. contained by bank? some body asked me to pay money by international credit card and

some body asked me to pay money by international credit card and asked my CCV no.

Answers:
It's regularly called the CVV CV2 or CVC number - adjectives the same point.

Basically it's the 3 digit number on the back of the card (4 digits for AMEX) that usually follows the ultimate 4 digits of your card number. It's found on your signature strip.

It's used as a barrier against fraud and when provided proves the user have the card in his / her possession or at lowest has have sight of the card they're using.

It prevents inhabitants finding your number on e.g. a shopping receipt and using your card fraudulently.

Other Answers:
CCV is Credit Card Verification number. On the backbone of your credit card they will print this 3-digit number. That helps to prevent someone who may hold your credit card number from purchasing something.