How does the CVV code work?

Related questions

1. How do I find my debit card CVV number?
2. What is the 4 digit card ID American Express?
3. What is the 3 digit code on a credit card?
4. Is it safe to give CVV number?
5. What is the 3 digit code on the back of a credit card called?
6. How is the CVV code generated?
7. Can I find my credit card security code online?
8. What is CVC on card?
9. What is meant by verification code?
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Tags

1. #number
2. #transaction
3. #using
4. #credit
5. #value
6. #security
7. #provides
8. #transactions
9. #digit
10. #cards
11. #every
12. #complete
13. #verification
14. #acronym
15. #along
16. #against
17. #scams
18. #required
19. #unique
20. #debit
21. #added