Oysters of Advice for New and Disgruntled Faculty, USENIX Security 2014 Doctoral Colloquium (Keynote Talk), San Diego, 21 August 2014. [Slideshare]
(with Dorina M. Evans). First International Conference on Hygenic Computing, Gesundheit Institute, 12 March 2013.
Tech-Connect, Harrison-Small Auditorium, University of Virginia, 1 May 2013. [Slides: PDF, PPTS, SlideShare] [UVaToday Article]
Talk to University of Virginia Theory Lunch, 25 January 2007.
#hashtagzero Meetup, Willow Tree Apps, Charlottesville, VA, 25 October 2016. [Speaker Deck]Trick or Treat?: Bitcoin for Non-Believers, Cryptocurrencies for Cypherpunks
DC-Area Crypto Day, Johns Hopkins University, 30 October 2015.
Talk to League of Women Voters of Montgomery County, Virginia, Blacksburg Town Hall (also broadcast on local television), 15 November 2006. [Roanoke Times story]
Hacker School (eBay's office), New York, 13 October 2014.Big Words, Busy Beavers, and the Cake of Computing
Tapestry 2009 Workshop (for high school computing teachers), University of Virginia, 15 July 2009 [PDF] [PPTX]Turing Machines, Busy Beavers, and Big Questions about Computing [PPT] [PDF]
Talk to College Science Scholars, 12 September 2007. (Partly inspired by Scott Aaronson's essay Who Can Name the Bigger Number?.)
Talk to College Science Scholars, 6 September 2006.1001 Things Every Self-Respecting Computer Scientist Should Know [PPT] [Notes]
Senior Seminar (CS 390) talk, 14 April 2004.
Four general-audience talks on cryptography, centered around code-breaking efforts during World War II. Taught as a course for the Jefferson Institute for Lifelong Learning, February-March 2006.Encryption: How it works, why it (sometimes) doesn't, and what it can do [PPT] [PDF]
Guest lecture in UVa Law School Cyberlaw course on encryption, 19 September 2001.
Cybersecurity Awareness at UVA, Commonwealth Room, 7 December 2017. [Speaker Deck]What Every Librarian Should Know about Computer Security
In-Service Day talk to Jefferson-Madison Regional Library, Charlottesville Doubletree, 11 November 2009. [PDF] [PPTX]What Every Human Should Know about Security [PDF] [PPT, 18MB]
UVa cs290 Seminar Talk, 21 February 2008.What Biology Can (and Can't) Teach Us About Security [PPT] [PDF]
Invited talk at USENIX Security Symposium, San Diego, August 12, 2004.Robin Hood and the 40 Million Thieves [PPT]
Talk on File Sharing for UVa Pugwash Meeting, 6 October 2003.Why You Should Be Paranoid About What Comes Into and Out Of Your Computer
Engineering Week talk, 21 February 2001.