You can’t easily not use a lot of the data broker stuff that random apps use to resell your data. The data is sold without you noticing. Maybe you’re cautious,

You can’t easily not use a lot of the data broker stuff that random apps use to resell your data. The data is sold without you noticing. Maybe you’re cautious, but check the location services for apps on your phone - random third party apps may be selling it to brokers that then resell it to others. Even innocuous apps like free weather apps will do this sort of thing. [0] Thankfully Apple’s OS updates are making this harder, but that’s relatively new. The Bluetooth implementation doesn’t require you to input any medical data. I agree that ubiquitous, free testing would have also helped. I think very high quality exposure notifications paired with quarantine would have been very effective too. [0]: https://thenextweb.com/apps/2019/01/05/weather-apps-are-secretly-selling-your-location-data-to-the-highest-bidder/ https://thenextweb.com/apps/2019/01/05/weather-apps-are-secr... (there was a better article on HN more recently, but I can’t remember the title).