
You swipe your card at the grocery store. You pay your bills online. You check your balance on your phone. Every time you interact with your bank, you leave a digital trail. But what happens to all that personal spending data? Most people don’t think about it. But banks are paying close attention. Your spending habits are valuable, and banks use this information in ways that might surprise you. Understanding what banks do with your personal spending data matters because it affects your privacy, your wallet, and even the ads you see.