Comment by znanz

At most banks, the absolute control belongs to risk and regulation department. A bank must safeguard their license above all else, and it is very easy for them to loose it if the bank is found doing something it should not (though for the big ones, they sometimes operate in a gray zone, which means they manage to keep their licenses despite relatively steep fines). Even for the simplest ui/ux change, risk department has the final say. Source: I’ve been working 15+ years in the banking industry.