For fans of COVID Contact Tracing App pre-history.
Shortly before it all kicked-off, I mentored at a health hackathon. One of the teams designed a prototype app which used BLE to measure distance, then K-Anonymity to report infections.
https://shkspr.mobi/blog/2020/03/bluetooth-mac-k-anonymity-and-population-privacy/
Bluetooth MAC, K-Anonymity, and Population Privacy
I recently went to a university hackathon, where students were trying to invent novel ways to help prevent pandemics. This was purely an academic exercise - they were not developing a fully-fledged app, nor were they creating official policies. I spent some time with one group discussing the privacy implications of what they had built. Thesis By monitoring nearby Bluetooth devices, we can tell who has come in to contact with an infectious person. We can warn people that they may have been…
