Retailers collect customer phone numbers at checkout under the premise of loyalty discounts, but this practice allows them to track in-store purchases, online activity, and shopping habits.
Over time, this aggregated data builds a detailed consumer profile used for targeted marketing, while increasing the risk of exposure in data breaches or corporate data sharing.
While loyalty programs provide convenient benefits like digital receipts and savings, shoppers often agree to privacy terms without fully understanding how their personal information is utilized.
Ultimately, sharing a phone number is optional, and consumers can protect their personal privacy by limiting the data they share or simply declining the offer at the register.