QR Codes Are Here to Stay. So Is the Tracking They Allow.
New York Times | July 26, 2021 QR codes — essentially a kind of bar code that allows transactions to be touchless — have emerged as a permanent tech fixture from the coronavirus pandemic. Restaurants have adopted them en masse, retailers including CVS and Foot Locker have added them to checkout registers, and marketers have splashed them all over retail packaging, direct mail, billboards and TV advertisements. But the spread of the codes has also let businesses integrate more