Publikationen

Autor	Hartwig, Katrin; Reuter, Christian
Datum	2022
Art	Journal Article
Abstrakt	Nudging users to keep them secure online has become a growing research field in cybersecurity. While existing approaches are mainly blackbox based, showing aggregated visualisations as one-size-fits-all nudges, personalisation turned out promising to enhance the efficacy of nudges within the high variance of users and contexts. This article presents a disaggregated whitebox-based visualisation of critical information as a novel nudge. By segmenting users according to their decision-making and information processing styles, we investigate if the novel nudge is more effective for specific users than a common black-box nudge. Based on existing literature about critical factors in password security, we designed a dynamic radar chart and parallel coordinates as disaggregated visualisations. We evaluated the short-term effectiveness and users' perception of the nudges in a think-aloud prestudy and a representative online evaluation (N=1.012). Our findings suggest that dynamic radar charts present a moderately effective nudge towards stronger passwords regarding short-term efficacy and are appreciated particularly by players of role-playing games.
ISSN	0144-929X
In	Behaviour & Information Technology, p.1357-1380
Publisher	Taylor & Francis
Url	https://tubiblio.ulb.tu-darmstadt.de/id/eprint/129339

Nudging Users Towards Better Security Decisions in Password Creation Using Whitebox-based Multidimensional Visualizations