How the Latest COVID-19 Contact-Tracing Apps Actually Work

At least 21 percent of the U.S. population has access to one of the official COVID-19 contact-tracing apps developed by various state governments, but only a fraction of people actually use them. And that’s the inherent problem with these kinds of apps: Enough people must use them for them to be…

Link: How the Latest COVID-19 Contact-Tracing Apps Actually Work
via lifehacker.com

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