There are other possibilities. For instance, you can have a QR that identifies the store, bar, restaurant, etc, and have people scan it with an app in order to enter the establishment. That app can check a central database that contains dates and locations where Covid-19 contact is likely to have occurred, altering the individuals who were there.Falco Underhill wrote: ↑Sun Dec 05, 2021 8:35 am So, if I'm understanding this, it seems to me all the difference between whether a method of contact tracing is considered "anonymous" or not depends on whether or not the data collected is sent to a central database where it can be used by third parties. In that case it would be centralized contact tracing. The other method of contact tracing (what you're referring to as "anonymized") would be referred to as decentralized contact tracing. An example would be data could be kept on a phone for so many days or weeks then rolled off, but not sent to any centralized data base.
Yes, there are those different methods.
Or an app on a cell phone can generate a QR that contains only an anonymous private identifier and Covid vaccination and test status. This anonymouis private identifier can be placed in a central database without any identifying information, the app can check to see if its identifier was in a place of concern. The identifier need not be constant, new ones can be generated as needed to make them harder to trace. For the sake of transparency, the QR code should not include any encrypted data so that the user can read it with a QR reader and know what it contains.
And for what it's worth, even a system that notes who was where when is no worse than what happens every time you use a credit card to make a purchase. Or carry your cellphone to a location without turning off geolocation and using privacy settings. I think we should want transparent systems for contact tracing, with privacy in mind, but I also think the public health benefit of contact tracing is important - not only for Covid, but in case we encounter something even more serious. I think we should be concerned about privacy, but most people are leaking so much private data everywhere they go that Covid doesn't seem like the most important privacy issue to me. I find it odd that it is being singled out.
And I find it odd that the conspiracy theories aren't mostly about the much more serious privacy issues that I mentioned earlier in this thread. If we really worry about a police state, why don't we worry about those things more?
Yes, it does depend on how it is being used. Like all uses of information, really. Who is storing what information, who is it available to, how is it being used? And in China, at this point, it really is tyrannical. No question about that. I don't know whether or not to be concerned about Australia, I haven't looked at it carefully. For me, that takes time and energy. I know a little more about Germany, which I'm not too concerned about, at least not yet.Falco Underhill wrote: ↑Sun Dec 05, 2021 8:35 amMy understanding is China and Australia are both using centralized contact tracing methods. These aren't necessarily tyrannical, it depends on how they're being used.I haven't spent any time on what Australia is doing, you seem to be pointing to what China is doing and saying that Australia is doing the same thing because they both use QR codes. I don't know if that's true or not, I generally don't think Australia is like China. I do know how QR codes work and various ways they might be used. Some of these would concern me, others would not.
