Our CA Alpha Preview doesn’t have 3DSecure (or SecureCode as the Mastercard implementation is known) I’m afraid.
We are definitely building it though, for the full current account!
I don’t have an ETA for it unfortunately but I do know it’s something being worked on heavily at the moment.
Interestingly, MasterCard are launching version 2.0 of SecureCode next year, which should allow us to provide a much better flow experience (1.0 is quite limited unfortunately) but we are working on our 1.0 implementation at the moment.