I agree: An annoying/avoidable implementation shortcoming, but arguably relatively orthogonal to security. > there are over a dozen different PIN block standar

I agree: An annoying/avoidable implementation shortcoming, but arguably relatively orthogonal to security. > there are over a dozen different PIN block standards You almost certainly don't need to support all of these inside the PIN pad or even ATM/POS. If necessary, translation can happen in other parts of the system.