Discover's EMV contactless kernel (Kernel 6) uses Combined Dynamic Data Authentication, which binds card-returned TLV objects into the verified transaction hash. Modified transactions are declined, making it resistant to the Zombie Card attack.
Discover's EMV contactless kernel (Kernel 6) uses Combined Dynamic Data Authentication, which binds card-returned TLV objects into the verified transaction hash. Modified transactions are declined, making it resistant to the Zombie Card attack.