Steffen Haesler

schoolTechnical University of Darmstadtbar_chart#3551 Global Rank

Total Papers

HCI Rank

#3551

Research Areas

Years Active

Recent Publications

Sounds Good? Fast and Secure Contact Exchange in Groups

Trustworthy digital communication requires the secure exchange of contact information, but current approaches lack usability and scalability for larger groups of users. We evaluate the usability of two secure contact exchange systems: the current state of the art, SafeSlinger, and our newly designed protocol, PairSon…

DIS '231st AuthorSmart Home Interaction Design +1

Getting the Residents' Attention: The Perception of Warning Channels in Smart Home Warning Systems

About half a billion households are expected to use smart home systems by 2025. Although many IoT sensors, such as smoke detectors or security cameras, are available and governmental crisis warning systems are in place, little is known about how to warn appropriately in smart home environments. We created a Raspberry…

CHI '233rd AuthorBest PaperExplainable AI (XAI) +2

FIDO2 the Rescue? Platform vs. Roaming Authentication on Smartphones

Modern smartphones support FIDO2 passwordless authentication using either external security keys or internal biometric authentication, but it is unclear whether users appreciate and accept these new forms of web authentication for their own accounts. We present the first lab study (N=87) comparing platform and roamin…

CSCW '211st AuthorTechnology/Information Use in Times of Pandemic

Stronger Together: How Neighborhood Groups Build up a Virtual Network during the COVID-19 Pandemic

During crises such as the COVID-19 pandemic, people spontaneously initiate support groups, while established organizations like soccer clubs set non-regular goals, both offering help. Interested in the coordination of such help and potential challenges of collaboration, we conducted a virtual ethnography of a multi-le…

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