Is it legal to ask for credit card security code?

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Tags

1. #digits
2. #credit
3. #solace
4. #transaction
5. #needed
6. #fraud
7. #first
8. #sales
9. #protection
10. #consumer
11. #online
12. #three
13. #located
14. #liability
15. #often
16. #complete
17. #security
18. #additional
19. #limit
20. #telephone