Health QR code (system): reasonable data collection or tracking surveillance under the fantasy of Big Data?

Health QR code (system): reasonable data collection or tracking surveillance under the fantasy of Big Data?

Health Code, a personal QR code created by the government of Hangzhou in cooperation with mobile giant Alipay and designed for collecting and controlling the covid-19 cases, was initially launched in Hangzhou on February 11th, 2020 and was widely...