My startup banking story
I get those voicemails from "my personal banker" at a branch of my bank I've never actually walked into a few times a year, "just checking in to see if we're meeting all your needs" or something like that. I hadn't noticed those calls are correlated with me moving around large amounts of money, e.g. when I pool money into a checking account to buy a house or whatnot. I suspected some department is responsible for watching that kind of thing for fraud, but never thought it'd be some random banker at a specific branch.