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EMV® 3-D Secure Specifications Frequently Asked Questions (FAQ) This document provides additional information about the EMV® 3-D Secure (“3DS”) Specifications. The information is current as of April 2026. New and updated responses are highlighted and can also …

The Terminal Risk Management Data (TRMD) indicates reader capabilities, requirements, and preferences to the Card. This specification bulletin proposes introducing two additional bits – 'Deferred Authorisation' bit and 'Transit Gate' bit. These new bits …

This Specification Bulletin announces an alternative mechanism for measuring the time taken by the EXCHANGE RELAY RESISTANCE DATA command. With the alternative mechanism the kernel delegates the measurement of the EXCHANGE RELAY RESISTANCE DATA command to the …

This specification bulletin announces that the Mag-stripe Mode Implementation Option in Kernel 2 is no longer supported. With the deprecation of the Mag-stripe Mode Implementation Option only two valid Kernel 2 implementations remain: with and without Data …