Hong Kong makes wearable trackers mandatory for new arrivals, checks in with ‘surprise calls’ too

Hong Kong has made it mandatory for all new arrivals to wear an "electronic wristband" that links to a smartphone to provide location-tracking services, so that authorities can be sure they're observing COVID-19 quarantine requirements. And the city-state insists its privacy commissioner has signed off on the idea because it "does not pose privacy concerns.""