Based on your financial expertise, provide your response or viewpoint on the given financial question or topic. The response format is open.

Why does my bank suddenly need to know where my money comes from?
Banks and credit unions are constantly required to improve their detection methods for suspicious transactions.  It's not just big transactions anymore, it's scattered little ones, etc. Our credit union had to buy software that runs through transactions sniffing for suspicious patterns.  More regulations and more costs that ultimately get passed on to customers in one way or another. Some of your transactions probably tripped a wire where there was none before.