Updated:WASHINGTON D.C. —
Retailers are using customers’ cellphones to keep track of when they go in their stores, and how much time they spend there.
Companies are using the technology to study everything from how long customers shop to what departments they spend the most time in.
The Federal Trade Commission is looking into the privacy and security risks of the technology. Most consumers do not realize this is happening when they walk into a store.
A group of the biggest companies that gather this data for retailers have created a website where customers can opt out and get placed on a do not track list. Click here to be redirected to that site.