Publication Type

Conference Proceeding Article

Version

publishedVersion

Publication Date

2-2015

Abstract

While biometrics have long been promoted as the future of authentication, the recent introduction of Android face unlock and iPhone fingerprint unlock are among the first large-scale deployments of biometrics for consumers. In a 10-participant, within-subjects lab study and a 198-participant online survey, we investigated the usability of these schemes, along with users ’ experiences, attitudes, and adoption decisions. Participants in our lab study found both face unlock and fingerprint unlock easy to use in typical scenarios. The notable exception was that face unlock was completely unusable in a dark room. Most participants preferred fingerprint unlock over face unlock or a PIN. In our survey, most fingerprint unlock users perceived it as more secure and convenient than a PIN. In contrast, face unlock users had mixed experiences, and many had stopped using it. We conclude with design recommendations for biometric authentication on smartphones.

Discipline

Information Security

Publication

USEC ’15: Workshop on Usable Security, 8 February 2015, San Diego, CA: Proceedings

First Page

1

Last Page

10

ISBN

1891562401

Identifier

10.14722/usec.2015.23003

Publisher

Internet Society

City or Country

Reston, VA

Copyright Owner and License

Publisher

Additional URL

https://doi.org/10.14722/usec.2015.23003

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