A phone ringing late at night can instantly make your heart race. Most people assume it must be an emergency involving a loved one, which is exactly what scammers count on. They know that when you’re tired, startled, or worried, you’re more likely to answer without thinking. But these mysterious calls often have nothing to do with an emergency—they’re carefully designed to catch you off guard.

Many of these scams begin with a simple question like, “Can you hear me?” The caller hopes you’ll instinctively reply with one small word: “Yes.” It sounds harmless, but that single response can become part of a much larger scheme. What seems like an ordinary late-night call could actually be the first step in a scam that many people never see coming.