Most people do not think twice when typing a phone number into a grocery store keypad for loyalty points or digital coupons. It feels harmless, fast, and part of everyday shopping. But that simple habit can contribute to something cybersecurity experts sometimes call “digital dust” — tiny bits of personal information scattered across databases, apps, and marketing systems. Over time, those fragments can make your home address, shopping patterns, and personal details easier to uncover than many consumers realize.
