Comment by kragen

Bank tellers are constantly surveilled by cameras, security guards, and several-times-daily cash counting, and it's still easy to find accounts of them having stolen significant amounts of money before getting caught. These are all from within the last year:

Vannia Chatt: https://news.ycombinator.com/item?id=43996765

I've been through a background check designed to screen out people who were vulnerable to bribery. They interviewed my friends and family from the previous several years to find out if I was secretly gay, cheated on my wife, gambled, drank too much, used illegal drugs, or had money problems for some other reason. It took about a year. I think it would be hard for a financial institution to be economically competitive doing that kind of thing with their call-center workers, because their customers can't tell if they're secure or not, just how much their services cost.