@inproceedings {180203,
	author = {Y Xu and G Reynaga and Sonia Chiasson and J.-M. Frahm and Fabian Monrose and Paul van Oorschot},
	title = {Security and Usability Challenges of {Moving-Object} {CAPTCHAs}: Decoding Codewords in Motion},
	booktitle = {21st USENIX Security Symposium (USENIX Security 12)},
	year = {2012},
	isbn = {978-931971-95-9},
	address = {Bellevue, WA},
	pages = {49--64},
	url = {https://www.usenix.org/conference/usenixsecurity12/technical-sessions/presentation/xu_y},
	publisher = {USENIX Association},
	month = aug
}
@inproceedings {268328,
	author = {Dirk Balfanz and Alessandro Aquisti and Mary Ellen Zurko and Diana Smetters and Volker Roth and Rachel Greenstadt and Steve Bellovin and Paul van Oorschot and Stuart Schechter},
	title = {Scheduled Speakers and Talks},
	booktitle = {Usability, Psychology, and Security 2008 (UPSEC 08)},
	year = {2008},
	address = {San Francisco, CA},
	url = {https://www.usenix.org/conference/upsec-08/scheduled-speakers-and-talks},
	publisher = {USENIX Association},
	month = apr
}
@inproceedings {268905,
	author = {Dirk Balfanz and Konstantin Beznosov and Paul van Oorschot and Ka-Ping Yee},
	title = {Usable Security: Quo Vadis?},
	booktitle = {15th USENIX Security Symposium (USENIX Security 06)},
	year = {2006},
	address = {Vancouver, B.C. Canada},
	url = {https://www.usenix.org/conference/15th-usenix-security-symposium/usable-security-quo-vadis},
	publisher = {USENIX Association},
	month = jul
}
@inproceedings {269604,
	author = {Julie Thorpe and Paul van Oorschot},
	title = {Graphical Dictionaries and the Memorable Space of Graphical Passwords},
	booktitle = {13th USENIX Security Symposium (USENIX Security 04)},
	year = {2004},
	address = {San Diego, CA},
	url = {https://www.usenix.org/conference/13th-usenix-security-symposium/graphical-dictionaries-and-memorable-space-graphical},
	publisher = {USENIX Association},
	month = aug
}
@inproceedings {261130,
	author = {Paul van Oorschot and Bill Frantz},
	title = {Trust Models},
	booktitle = {3rd USENIX Workshop on Electronic Commerce (EC 98)},
	year = {1998},
	address = {Boston, MA},
	url = {https://www.usenix.org/conference/3rd-usenix-workshop-electronic-commerce/trust-models},
	publisher = {USENIX Association},
	month = aug
}
