MasterCard Global 509 Downgrading Secure Transactions where the AAV is not present Date: 8th November 2016

If the AAV is not present a 3DS transaction is now downgraded to a non-secure transaction.

By |2020-04-07T11:21:30+00:00October 4, 2016|Uncategorized|Comments Off on MasterCard Global 509 Downgrading Secure Transactions where the AAV is not present Date: 8th November 2016
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