USENIX Enigma 2021 - Carmela Troncoso's 'Contact Tracing Apps: Engineering Privacy In Quicksand' → March 18, 2021 by Marc Handelman in USENIX, USENIX Enigma 2021, Conferences, Education, Information Security, Cyber Security Many thanks to USENIX Enigma 2021 for publishing these outstanding conference videos on the YouTube USENIX Channel; don't miss this erudite 27 video information & cybersecurity event.