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2006
ACM

A comparison of perceived and real shoulder-surfing risks between alphanumeric and graphical passwords

9 years 5 months ago
A comparison of perceived and real shoulder-surfing risks between alphanumeric and graphical passwords
Previous research has found graphical passwords to be more memorable than non-dictionary or “strong” alphanumeric passwords. Participants in a prior study expressed concerns that this increase in memorability could also lead to an increased susceptibility of graphical passwords to shoulder-surfing. This appears to be yet another example of the classic trade-off between usability and security for authentication systems. This paper explores whether graphical passwords’ increased memorability necessarily leads to risks of shoulder-surfing. To date, there are no studies examining the vulnerability of graphical versus alphanumeric passwords to shoulder-surfing. This paper examines the real and perceived vulnerability to shoulder-surfing of two configurations of a graphical password, Passfaces™[30], compared to non-dictionary and dictionary passwords. A laboratory experiment with 20 participants asked them to try to shoulder surf the two configurations of Passfaces™ (mouse versus ...
Furkan Tari, A. Ant Ozok, Stephen H. Holden
Added 14 Jun 2010
Updated 14 Jun 2010
Type Conference
Year 2006
Where SOUPS
Authors Furkan Tari, A. Ant Ozok, Stephen H. Holden
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