Wear a mask, pay cash, and break out your old brick cell phone. Consumer Reports tells all:
High-resolution video cameras monitor all areas in and outside the store. With facial-recognition software, your mug shot can be captured and digitally filed. Ditto for your car’s license plate. Stores don’t provide sufficient disclosure, so you can’t opt out to protect your privacy.
Gaze trackers are hidden in tiny holes in the shelving and detect which brands you’re looking at and how long for each. There are even mannequins whose eyes are cameras that detect age, sex, ethnicity, and facial expression.
Your mobile phone is an excellent device for tracking your shopping route. Retailer tracking systems can identify individual shoppers by monitoring your phone’s International Mobile Subscriber Identity number (constantly transmitted from all cell phones to their service providers) or Media Access Control address (transmitted when the device’s Wi-Fi is enabled, which is the default setting on most devices).