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Validation codeA unique four-character value that VISA includes as part of the CPS/ATM program in each authorization response. This code ensures that key authorization fields are preserved in the clearing or settlement record.
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Validation codeaka security code. A validation code is a combination vision test, typing test and ESP (Extra Sensory Perception) test you must take to prove yourself worthy of using some program, signing up for a fo [..]
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