Fans of the NBA’s Brooklyn Nets are flashing more than game tickets these days when entering Barclays Center.
They’re also required to show a recent negative Covid-19 test, a vaccination card, or their Excelsior Pass—New York’s first-in-the-nation “vaccine passport,” which uses QR codes on a smartphone to prove test results or vaccination against the disease.
The IBM-created Excelsior Pass, which debuted last month, is among a growing number of apps that could help Americans safely return to sporting events, theaters, restaurants, and flights.
But they’re also raising privacy concerns.
“It’s very important when we reopen communities and economies that ...