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China Covid-19 health app breach puts celebrity photos online for pennies William Langley william.langley@scmp.com People in Beijing using a phone app to scan a code proving their health and travel status before entering a shopping mall. Photo: AFP
Digital health codes have been instrumental in containing the Covid-19 pandemic in China. The codes, which assign users a red, yellow or green health ranking, are the difference between government quarantine, self-isolation and freedom.
Everyone has them. And, while some have raised concerns over privacy and data usage, they might take solace in the fact that privacy issues affect all users equally, from street cleaners to movie stars.