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Issue link: https://digital.macdirectory.com/i/1256627
On April 10, Apple and Google announced a coronavirus exposure notification system that will be built into their smartphone operating systems, iOS and Android. The system uses the ubiquitous Bluetooth short-range wireless communication technology. There are dozens of apps being developed around the world that alert people if they've been exposed to a person who has tested positive for COVID-19. Many of them also report the identities of the exposed people to public health authorities, which has raised privacy concerns. Several other exposure notification projects, including PACT, BlueTrace and the Covid Watch project, take a similar privacy- protecting approach to Apple's and Google's initiative. So how will the Apple-Google exposure notification system work? As researchers who study security and privacy of wireless communication, we have examined the companies' plan and have assessed its effectiveness and privacy implications. Recently, a study found that contact tracing can be effective in containing diseases such as COVID-19, if large parts of the population participate. Exposure notification schemes like the Apple-Google system aren't true contact tracing systems because they don't allow public health authorities to identify people who have been exposed to infected individuals. But digital exposure notification systems have a big advantage: They can be used by millions of people and rapidly warn those who have been exposed to quarantine themselves.