A Study on Designing Video Tutorials for Promoting Security Features: A Case Study in the Context of Two-Factor Authentication (2FA)

This article investigates the effectiveness of informational videos that are designed to provide an introduction to two-step verification (i.e., 2FA) and in turn seeks to improve the adoption rate of 2FA among users. Toward that, eight video tutorials based on three themes (e.g., Risk, Self-efficacy, and Contingency) were designed, and a three-way between-group study with 399 participants on Amazon’s MTurk was conducted. Furthermore, a follow-up study was run to see the changes in participants’ behavior (e.g., enabling of 2FA). The Self-efficacy and Risk themes were found to be the most effective in making the videos more interesting, informative, and useful. Willingness to try 2FA was found to be higher for participants who were exposed to both the Risk and Self-efficacy themes. Participants’ decisions regarding actually enabling 2FA was found to be significantly correlated with how interesting, informative, and useful the videos were. Implications of our findings in a broader context are discussed in the article.     

Investigating the Effect of System Reliability,Risk, and Role on Users' Emotions and Attitudes toward a Safety-Critical Drone System

In safety-critical systems, it is essential to communicate relevant information to facilitate decision-making, promote trust, and improve performance without overloading users. To explore the effect of system performance information on rational and emotional processing by users, we performed a between-subject experiment in which participants were asked to imagine themselves as a drone operator or system administrator in a high-, medium-, or low-risk scenario. Then, based on their imagined scenario and role, participants rated the relevance of four aspects of system reliability to decision-making with the system, as well as the expected intensity of the GREAT emotions. Results indicate that system performance information affected participants’ reasoning differently depending on risk level. Moreover, participants had different perspectives depending on their role in the system. Those in administrator roles indicated higher respect ratings for those with a similar role. These findings demonstrate that contextual risk and a user’s role can influence emotions and attitudes toward safety-critical computer systems.     

Elaboration and Characterization of Amorphous Silicon Carbide Thin Films (a-SiC) by Sputerring Magnetron Technique for Photoelectrochemical CO2 Conversion

Silicon - Semiconductors as photoelectric catalysis is recognized as a promising strategy for simultaneous face energy crisis and environmental pollution. In this study, amorphous silicon carbide...