The Google|Apple protocol and many others are recording proximity events between devices, and no location data. This data is private until a user releases it for others to match against their own logs on their own devices to see if they've been exposed.
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Replying to @durumcrustulum
That part I understand. But I still don't understand your question. Sorry to be thick.
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Replying to @Pinboard
> Assumes location data is dispensible There is no location data, only prox data. Maybe by correlating with other BLE prox data that _does_ log location, you have location data to dispense but that's outside the scope of these designs.
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Replying to @durumcrustulum @Pinboard
Things we do have to worry about: BLE loggers that slurp up the positive broadcasts and correlates that with say, someone who was in your store, and you start keeping a list of COVID+ people to advertise crap at.
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Replying to @durumcrustulum
My point is that the location history, not proximity tracing may be the essential thing for the public health response. Or it may be that proximity data is enough, or at least good enough given the privacy tradeoff. The answer is not obvious and needs testing, is my argument
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Replying to @Pinboard @durumcrustulum
You generate the list of Covid+ people to advertise at not by James Bond sleuthing, but by handing the search query log to AdSense. This is my more general problem with this whole approach, we're play acting and pretending like a whole surveillance economy doesn't already exist
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Replying to @Pinboard
But the search query result log is "this device saw these devices in this 14 day span", it is only useful if you have other prox data to correlate it against.
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Replying to @durumcrustulum
No, I mean the search log for Google the search engine. Nothing to do with phones or apps.
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Replying to @Pinboard
Oh, you mean it's easier to advertise Google Ads at the people googling "do my symptoms sound like COVID-19"? Sure. The BLE slurpers are more like in-store advertisers that send notifications to your phone while _in_ the store and most likely to make a purchase.
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Replying to @durumcrustulum @Pinboard
Advertisers definitely value a more concrete ad-to-purchase conversion metric than 'saw a google ad, maybe went to a website somewhere and made purchase, or maybe went to a store and made a purchase, not really sure'.
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Oh, I see what you mean—that point of sale stuff would do this. Yeah, whatever is the dumbest and most annoying aggregate outcome as far as adtech is concerned is what my (remaining) money is on.
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