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Currently, for additional authentication of the customer, the most issuing banks operate according to the 3-D Secure 1.0 protocol version for all types of cards.
For a more secure authentication process, issuing banks and payment systems are switching to a new version of protocol 2.0 for all types of cards (VISA, Mastercard, MIR). To support a new generation protocol, a merchant has to make changes to the customer authentication process.
The customer has to be forwarded to the issuer-bank site by URL from acsurl field.
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