Support for this episode comes from Contentful.

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If you've been back to a restaurant since the beginning of the pandemic, chances are you

weren't offered a paper menu.

Instead, you probably used your phone to scan a small black and white barcode looking

square at the center of the table.

Use your QR codes, and while the technology isn't new, it's been used in new ways in

the last year and a half.

Not just at restaurants, but also retail shops on billboards, city hall.

But QR codes aren't just convenient for customers, they're also a useful tool for business

owners.

We want to collect data on their customers.

And that has some privacy advocates worried.

Erin Woo reports on technology in startups for the New York Times.

She's been talking with restaurant shoppers and the developers behind QR technology.

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