"I am sorry, but I am not at liberty to share internal details of my previous workplace.". If they look upset, follow it up with "NDA, you understand...". If t

"I am sorry, but I am not at liberty to share internal details of my previous workplace.". If they look upset, follow it up with "NDA, you understand...". If they still look upset, might as well leave right now. They have no sense of ethics, and they sure won't keep promises they made you.