Track Data
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The data encoded in the tracks of a payment card magnetic stripe, or the equivalent data held on a chip. Track 1 carries the primary account number, cardholder name, expiration date, service code and discretionary data; Track 2 carries a shorter set without the name. Both include a card validation value, CVV1 or CAV1. Track data is Sensitive Authentication Data in full and must never be stored after authorization, in any system, including logs and diagnostic output.