Gina Warren, 18, of Ashville, Ohio, has decorated her graduation cap with a QR code that sends people who scan it with their phones to a list of students killed in US high schools.

Now schools are using them to track their staff. When hybrid learning began Oct. 19, Appoquinimink School District started using QR codes to track staff members as they enter and exit buildings ...

ORANGE COUNTY, California (KCAL, KCBS) — A Huntington Beach high school ditched hall passes and replaced them with QR codes, leaving some kids uneasy. “My opinion of this whole scanning into ...

ORANGE COUNTY, Calif. — Hall passes seem to be a thing of the past for one California high school.At Edison High School in Huntington Beach, students must download an app and scan a QR code when ...