Starting at midnight on March 19, anyone entering Hong Kong was required to wear a government-issued wristband that tracked their whereabouts, making sure they were following the region’s strict 14-day quarantine rules for new arrivals.
Many viewed the bracelets—which pair with an app on the wearer’s cell phone—as an extreme example of government intervention and a threat to individuals’ privacy. But Wayne Lloyd, CEO of Vancouver-based Blockchain Holdings, was convinced they would become a must-have accessory in the global fight to gain control of COVID-19.
