Originally Posted by
rgAAFT
What is 3D secure?
The name of the mechanism behind the Verified by Visa, Mastercard Secure Code, AmericanExpress SecureKey.
http://en.wikipedia.org/wiki/3-D_Secure
Chase USED to participate but they pulled out. That is why now everyone has such a hard time buying train tickets from virtually all European national railway systems.
Luckily there are now 3rd party ticket-selling agencies that can circumvent such issues. Just use that versus the "real thing".