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Jeff Yan
Jeff Yan
Professor of Cyber Security
Verified email at acm.org - Homepage
Title
Cited by
Cited by
Year
The memorability and security of passwords–some empirical results
J Yan, A Blackwell, R Anderson, A Grant
University of Cambridge, Computer Laboratory, 2000
1071*2000
Security and usability: designing secure systems that people can use
LF Cranor, S Garfinkel
" O'Reilly Media, Inc.", 2005
6792005
A Low-cost Attack on a Microsoft CAPTCHA
J Yan, AS El Ahmad
Proceedings of the 15th ACM conference on Computer and communications …, 2008
5852008
Usability of CAPTCHAs or usability issues in CAPTCHA design
J Yan, AS El Ahmad
Proceedings of the 4th symposium on Usable privacy and security, 44-52, 2008
4212008
Targeted Online Password Guessing: An Underestimated Threat
D Wang, Z Zhang, P Wang, J Yan, X Huang
ACM Conference on Computer and Communications Security (CCS), 2016
4132016
Breaking visual captchas with naive pattern recognition algorithms
J Yan, AS El Ahmad
ACSAC'07, Twenty-Third Annual Computer Security Applications Conference …, 2007
3712007
Do background images improve draw a secret graphical passwords?
P Dunphy, J Yan
Proceedings of the 14th ACM conference on Computer and communications …, 2007
3342007
A systematic classification of cheating in online games
J Yan, B Randell
Proceedings of 4th ACM SIGCOMM workshop on Network and system support for …, 2005
2932005
Captcha as Graphical Passwords–A New Security Primitive Based on Hard AI Problems
BB Zhu, J Yan, G Bao, M Yang, N Xu
IEEE transactions on information forensics and security 9 (6), 891-904, 2014
2022014
Attacks and design of image recognition CAPTCHAs
BB Zhu, J Yan, Q Li, C Yang, J Liu, N Xu, M Yi, K Cai
Proceedings of the 17th ACM conference on Computer and communications …, 2010
2022010
Shoulder surfing defence for recall-based graphical passwords
NH Zakaria, D Griffiths, S Brostoff, J Yan
Proceedings of the seventh symposium on usable privacy and security, 1-12, 2011
1852011
Security issues in online games
J Yan, HJ Choi
The Electronic Library 20 (2), 125-133, 2002
1752002
The memorability and security of passwords–some empirical results
J Yan, A Blackwell, R Anderson, A Grant
University of Cambridge, Computer Laboratory, 2000
1682000
The memorability and security of passwords–some empirical results
J Yan, A Blackwell, R Anderson, A Grant
University of Cambridge, Computer Laboratory, 2000
1682000
A note on proactive password checking
J Yan
Proceedings of the 2001 workshop on New security paradigms, 127-135, 2001
1462001
The robustness of Google CAPTCHAs
AS El Ahmad, J Yan, M Tayara
Newcastle University, School of Computing Science Technical Report Series, 2011
129*2011
A Simple Generic Attack on Text Captchas.
H Gao, J Yan, F Cao, Z Zhang, L Lei, M Tang, P Zhang, X Zhou, X Wang, ...
NDSS, 2016
1182016
The robustness of hollow captchas
H Gao, W Wang, J Qi, X Wang, X Liu, J Yan
Proceedings of the 2013 ACM SIGSAC conference on Computer & communications …, 2013
1032013
The robustness of a new CAPTCHA
AS El Ahmad, J Yan, L Marshall
Proceedings of the Third European Workshop on System Security, 36-41, 2010
1032010
CAPTCHA design: Color, usability, and security
AS El Ahmad, J Yan, WY Ng
IEEE Internet Computing 16 (2), 44-51, 2012
952012
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