Apple, Google bring coronavirus contact-tracing to 3 billion people

By Mark Gurman, Bloomberg
Apple and Google unveiled a rare partnership to add technology to their smartphone platforms that will alert users if they have come into contact with a person with COVID-19. People must opt in to the system, but it has the potential to monitor about a third of the world’s population.
The technology, known as contact-tracing, is designed to curb the spread of the novel coronavirus by telling users they should quarantine or isolate themselves after contact with an