COVID vaccine certificates are more or less required at a lot of public establishments these days, all over the world. But some people might actually be carrying fakes. Furthermore, legitimate COVID ...

Add Yahoo as a preferred source to see more of our stories on Google. People in Toronto protest the implementation of a QR code COVID-19 vaccine passport by the Ontario government, Sept. 1, 2021.

Back in July, migrant workers queued up all day and night for a rubber-stamped paper to certify that they have been vaccinated. Photo: UPASANA KHADKA Digital vaccine certificates were supposed to help ...