Publication statistics

Pub. period:2003-2011
Pub. count:5
Number of co-authors:8


Number of publications with 3 favourite co-authors:

Jens Grossklags:
Pan Shi:
Xiaolong (Luke) Zhang:



Productive colleagues

Heng Xu's 3 most productive colleagues in number of publications:

Hock-Hai Teo:14
Hao Wang:9
Tamara Dinev:5

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Heng Xu


Publications by Heng Xu (bibliography)

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Wang, Na, Xu, Heng and Grossklags, Jens (2011): Third-party apps on Facebook: privacy and the illusion of control. In: Proceedings of the 2011 Symposium on Computer Human Interaction for the Management of Information Technology 2011. p. 4.

Little research examines the privacy threats associated with the use of third-party apps on Facebook. To address this gap in the literature, we systematically study third-party apps' current practices for privacy notice and consent by: i) collecting data from the 1800 most popular Facebook apps to record their data collection practices concerning users and their friends, and ii) developing our own Facebook app to conduct a number of tests to identify problems that exist in the current design of authentication dialogs for third-party apps on Facebook. To address these problems, we propose two new interface designs for third-party apps' authentication dialogs to: i) increase user control of apps' data access and restrict apps' publishing ability during the process of adding them to users' profiles, and ii) alert users when their global privacy settings on Facebook are violated by apps. This research provides both conceptual and empirical insights in terms of design recommendations to address privacy concerns toward third-party apps on Facebook.

© All rights reserved Wang et al. and/or ACM Press

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Shi, Pan, Xu, Heng and Zhang, Xiaolong (Luke) (2011): Informing security indicator design in web browsers. In: Proceedings of the 2011 iConference 2011. pp. 569-575.

In this paper, we aim at providing conceptual and empirical insights to the design of security indicators in web browsers. In examining why security indicators in web browsers fail to warn users about web frauds, we propose affordance-based principles for our new design of web authentication indicators. Following these principles, we present a new design for Extended Validation (EV) certificate interface in the Firefox browser. We then conduct an exploratory qualitative study to evaluate three different versions of EV indicators. Our findings offer some preliminary implications for the designs of more effective web authentication indicators.

© All rights reserved Shi et al. and/or ACM Press

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Dinev, Tamara, Xu, Heng and Smith, H. Jeff (2009): Information Privacy Values, Beliefs and Attitudes: An Empirical Analysis of Web 2.0 Privacy. In: HICSS 2009 - 42st Hawaii International International Conference on Systems Science 5-8 January, 2009, Waikoloa, Big Island, HI, USA. pp. 1-10.

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Xu, Heng, Wang, Hao and Teo, Hock-Hai (2005): Predicting the Usage of P2P Sharing Software: The Role of Trust and Perceived Risk. In: HICSS 2005 - 38th Hawaii International Conference on System Sciences 3-6 January, 2005, Big Island, HI, USA. .

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Xu, Heng, Teo, Hock-Hai and Wang, Hao (2003): Foundations of SMS Commerce Success: Lessons from SMS Messaging and Co-Opetition. In: HICSS 2003 2003. p. 90.

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