How Apple and Google let your phone warn you if you've been exposed to the coronavirus while protecting your privacy

Bluetooth wireless communication makes it possible to track when people have been exposed to people infected with the coronavirus. The right cryptography scheme keeps alerts about exposures private.

David Starobinski, Professor of Electrical and Computer Engineering, Boston University • conversation
Feb. 12, 2021 • ~11 min

Contact-tracing apps: there's no evidence they're helping stop COVID-19

Download rates have been disappointing and people aren't following self-isolation warnings.

Allison Gardner, Lecturer in Computer Science/Co-founder Women Leading in AI, Keele University • conversation
Oct. 21, 2020 • ~7 min

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