To better understand privacy attitudes toward contact tracing apps, we surveyed subjects (total n=200) on two dates in early April. seclab.cs.washington.edu/wp-content/upl… (PDF) I thought some of the preliminary results were telling. 1/ 
Even with a hypothetical guarantee of "perfect" privacy, ~72% of participants said they were at least "somewhat likely" to download a contact tracing app. That number dropped significantly as we introduced the possibility of imperfect privacy. 2/
It mattered to participants who was behind the effort (Google, UN, etc.) and whether data was to be shared with government. There was a notable dearth of trust in the government to limit what I would characterize as secondary use or mission creep. 3/
These results are, again, preliminary and the paper is pre-publication. We release in light of how quickly events are unfolding. The center of gravity for the work is @uwcse, with the following authors (plus me): @lucysimko, @franziroesner, and @yoshi_kohno. Thoughts welcome! 4/4
Thanks for all the questions! If you’re interested in writing about the paper, a great person to contact (and follow) is the lead author @lucysimko.
