The Case For Contact Tracing Apps Built On Apple And Google's Exposure Notification System
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Apple and Google have now released their update to their mobile operating systems to include a new capability for COVID-19 exposure notification. This new technology, which will support contact tracing apps developed by public health agencies, is technically impressive: it enables notifications of possible contact with COVID-positive individuals without leaking any sensitive personal data. The only data exchanged by users are rotating random keys (i.e., a unique 128-digit string of 0s and 1s) and encrypted metadata (i.e., the protocol version in use and transmitted power levels). Keys of infected individuals, but not their identities or their locations, are downloaded by the network upon a positive test with the approval of a government-sanctioned public health app.Despite being a useful tool in the pandemic arsenal and adopting state-of-the-art techniques to protect privacy, the Apple-Google system has drawn criticism from several quarters. Privacy advocates are dreaming up ways the system could be abused. Anti-tech campaigners are decrying tech solutionism. None of these critiques stands up to scrutiny.How the exposure notification API works
Be fast, have no regrets. You must be the first mover. The virus will always get you if you don't move quickly. [...] If you need to be right before you move, you will never win. Perfection is the enemy of the good when it comes to emergency management. Speed trumps perfection. And the problem in society we have at the moment is that everyone is afraid of making a mistake. Everyone is afraid of the consequence of error. But the greatest error is not to move. The greatest error is to be paralysed by the fear of failure.We must move forward. We should not be paralyzed by the fear that somewhere someone might lose an iota of privacy.
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