Mandates disappear, but mask detection tech has left its mark

During the height of the COVID-19 pandemic, when mask mandates became commonplace both in public and in private, tech vendors began selling products they claimed could detect whether someone was wearing a mask — or not. With press releases and flashy demonstrations, the vendors attracted the attention of critics skeptical about the solutions’ capabilities and potential surveillance applications. Allied Market Research optimistically predicted that the market would be worth over $1 billion by 2027.
Now, as mask mandates lift in countries around the world — if prematurely, acco

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