Confirmed for my santander account. I have not got a credit card, but the NewUniversalCookie cookie does contain my passcode (in all caps, just discovered it is case insensative!).
The data is not just one base64 chunk, but multiple space separated chunks that base64 -d chokes on after a bit. I am probably missing a step.
The data is not just one base64 chunk, but multiple space separated chunks that base64 -d chokes on after a bit. I am probably missing a step.