[liberationtech] Harvard launches contact tracing app

[Yosem Companys]

>From the article:

Harvard began piloting Tracefi — a Wi-Fi-based contact tracing system —
this past Friday in preparation for freshmen and a select group of
upperclassmen students’ return to campus later this month.

Tracefi uses the signals phones, laptops, and tablets constantly emit to
Harvard’s Wi-Fi infrastructures to gather three pieces of information: a
datetime stamp, the signal strength received by Harvard’s Wi-Fi
infrastructure, and the MAC address of the mobile device. The system then
stores the data for up to 28 days.

Harvard will use the Tracefi data to aid contract tracing efforts run by
Harvard University Health Services and Harvard University Information
Technology by providing information to human contact tracers about the
specific whereabouts of infected individuals.

https://www.thecrimson.com/article/2020/8/2/tracefi-wifi-contract-tracing-coronavirus/
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