John Langford • 4/19/2020

Critical issues in digital contract tracing

This technical article critically examines digital contact tracing methods for COVID-19, focusing on the key distinction between location-based (GPS, cell towers) and proximity-based (Bluetooth) approaches. It argues that location data is often inaccurate, leads to false positives, and poses significant privacy risks by being inherently identifying. The author advocates for privacy-preserving, proximity-based protocols while acknowledging potential controlled uses for on-device location data to aid human memory during manual tracing.

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#privacy #Gp #Bluetooth Low Energy