I’ve want a physical one of these that changes both the CVC and the entire 16-digit number. Heck let the name submitted with the number be a longer checksum that can be verified at point of sale to figure out who’s actual account it is.
Plus then my gibberish name on my card number will match the gibberish secret question answers.
> Heck let the name submitted with the number be a longer checksum that can be verified at point of sale to figure out who’s actual account it is.
That's going to be one hell of a lot of an issue in practice. Hotels, car rentals and AFAIK even some airlines want that the name of the card holder matches the name on the ID card.
Plus then my gibberish name on my card number will match the gibberish secret question answers.