Also, the entire finance industry is on a massive cocaine-style high about AI and vibe coding, and have drunk *all* the Kool-Aid, with an "Emperor's New Clothes" denial of the downsides. So it wouldn't surprise me one jot if managers at bank say "we've vibe coded all the stuff, and there's no risk because we're rockstars".
(I've worked in software Dev in investment banks and other financial institutions for the last 30 years)