Store “Loyalty Cards” are combined with social media data to log your purchase habits
Stores use your loyalty card to identify you and all of your purchases. Your purchase transactions are then sold to other marketing companies. This data, in turn, can and is matched to your Facebook account and other online data using the phone number that you gave to the store and to Facebook or Google. Source: Loyalty Cards are used to spy on your purchases, and not just with the vendor | Coldstreams The matching operation uses the phone number you…