The CSC is typically printed on the back of a credit card (usually in the signature field).
The Boston Globe
The security code on my expired credit card was 000 : r/mildlyinteresting
IDEMIA announces that RHB is the first bank to launch the MOTION CODE credit card in Southeast Asia
Why Card Security Code Matters In Online Shopping
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CDJapan : Credit Card Security (CVV Code Verification)
Card Security Code Credit Card MasterCard Payment Card Number Debit Card PNG, Clipart, Account, American Express
About Security Codes, Reservation Guide
Is it safe to give out your CVV security code?
Where to find the CVV or CVC number on my credit card?
Security Code Help