Vibrapass: secure authentication based on shared lies. - Alexander De Luca; Emanuel von Zezschwitz; Heinrich Hußmann (CHI, 2009)

Too much information!: user attitudes towards smartphone sharing. - Alina Hang; Emanuel von Zezschwitz; Alexander De Luca; Heinrich Hussmann (NordiCHI, 2012)

Back-of-device authentication on smartphones. - Alexander De Luca; Emanuel von Zezschwitz; Ngo Dieu Huong Nguyen; Max-Emanuel Maurer; Elisa Rubegni; Marcello Paolo Scipioni; Marc Langheinrich (CHI, 2013)

Using fake cursors to secure on-screen password entry. - Alexander De Luca; Emanuel von Zezschwitz; Laurent Pichler; Heinrich Hussmann (CHI, 2013)

Travel Routes or Geography Facts? An Evaluation of Voice Authentication User Interfaces. - Alina Hang; Alexander De Luca; Katharina Frison; Emanuel von Zezschwitz; Massimo Tedesco; Marcel Kockmann; Heinrich Hussmann (INTERACT (3), 2013)

Long-Term Experiences with an Iterative Design of a QR-Code-Based Payment System for Beverages. - Max-Emanuel Maurer; Alexander De Luca; Alina Hang; Doris Hausen; Fabian Hennecke; Sebastian Loehmann; Henri Palleis; Hendrik Richter 002; Simon Stusak; Aurélien Tabard; Sarah Tausch; Emanuel von Zezschwitz; et al. (INTERACT (4), 2013)

Survival of the Shortest: A Retrospective Analysis of Influencing Factors on Password Composition. - Emanuel von Zezschwitz; Alexander De Luca; Heinrich Hussmann (INTERACT (3), 2013)

Making graphic-based authentication secure against smudge attacks. - Emanuel von Zezschwitz; Anton Koslow; Alexander De Luca; Heinrich Hussmann (IUI, 2013)

Patterns in the wild: a field study of the usability of pattern and pin-based authentication on mobile devices. - Emanuel von Zezschwitz; Paul Dunphy; Alexander De Luca (Mobile HCI, 2013)

Now you see me, now you don't: protecting smartphone authentication from shoulder surfers. - Alexander De Luca; Marian Harbach; Emanuel von Zezschwitz; Max-Emanuel Maurer; Bernhard Ewald Slawik; Heinrich Hussmann; Matthew Smith 001 (CHI, 2014)

Workshop on inconspicuous interaction. - Diogo Marques 001; Luís Carriço; Tiago João Guerreiro 001; Alexander De Luca; Pattie Maes; Ildar Muslukhov; Ian Oakley; Emanuel von Zezschwitz (CHI Extended Abstracts, 2014)

Honey, I shrunk the keys: influences of mobile devices on password composition and authentication performance. - Emanuel von Zezschwitz; Alexander De Luca; Heinrich Hussmann (NordiCHI, 2014)

It's a Hard Lock Life: A Field Study of Smartphone (Un)Locking Behavior and Risk Perception. - Marian Harbach; Emanuel von Zezschwitz; Andreas Fichtner; Alexander De Luca; Matthew Smith 001 (SOUPS, 2014)

I Feel Like I'm Taking Selfies All Day!: Towards Understanding Biometric Authentication on Smartphones. - Alexander De Luca; Alina Hang; Emanuel von Zezschwitz; Heinrich Hussmann (CHI, 2015)

SwiPIN: Fast and Secure PIN-Entry on Smartphones. - Emanuel von Zezschwitz; Alexander De Luca; Bruno Brunkow; Heinrich Hussmann (CHI, 2015)

Easy to Draw, but Hard to Trace?: On the Observability of Grid-based (Un)lock Patterns. - Emanuel von Zezschwitz; Alexander De Luca; Philipp Janssen; Heinrich Hussmann (CHI, 2015)

Automatic Privacy Classification of Personal Photos. - Daniel Buschek; Moritz Bader; Emanuel von Zezschwitz; Alexander De Luca (INTERACT (2), 2015)

Locked Your Phone? Buy a New One? From Tales of Fallback Authentication on Smartphones to Actual Concepts. - Alina Hang; Alexander De Luca; Emanuel von Zezschwitz; Manuel Demmler; Heinrich Hussmann (MobileHCI, 2015)

SnapApp: Reducing Authentication Overhead with a Time-Constrained Fast Unlock Option. - Daniel Buschek; Fabian Hartmann; Emanuel von Zezschwitz; Alexander De Luca; Florian Alt (CHI, 2016)

My Scrawl Hides It All: Protecting Text Messages Against Shoulder Surfing With Handwritten Fonts. - Malin Eiband; Emanuel von Zezschwitz; Daniel Buschek; Heinrich Hußmann (CHI Extended Abstracts, 2016)

GazeTouchPass: Multimodal Authentication Using Gaze and Touch on Mobile Devices. - Mohamed Khamis; Florian Alt; Mariam Hassib; Emanuel von Zezschwitz; Regina Hasholzner; Andreas Bulling (CHI Extended Abstracts, 2016)

You Can't Watch This!: Privacy-Respectful Photo Browsing on Smartphones. - Emanuel von Zezschwitz; Sigrid Ebbinghaus; Heinrich Hussmann; Alexander De Luca (CHI, 2016)

On quantifying the effective password space of grid-based unlock gestures. - Emanuel von Zezschwitz; Malin Eiband; Daniel Buschek; Sascha Oberhuber; Alexander De Luca; Florian Alt; Heinrich Hussmann (MUM, 2016)

Usable privacy and security. - Alexander De Luca; Emanuel von Zezschwitz (it Inf. Technol., 2016)

Risks and potentials of graphical and gesture-based authentication for touchscreen mobile devices: balancing usability and security through user-centered analysis and design. - Emanuel von Zezschwitz (2016)

Understanding Shoulder Surfing in the Wild: Stories from Users and Observers. - Malin Eiband; Mohamed Khamis; Emanuel von Zezschwitz; Heinrich Hussmann; Florian Alt (CHI, 2017)

GazeTouchPIN: protecting sensitive data on mobile devices using secure multimodal authentication. - Mohamed Khamis; Mariam Hassib; Emanuel von Zezschwitz; Andreas Bulling; Florian Alt (ICMI, 2017)

Not On My Phone: Exploring Users' Conception of Related Permissions. - Maria Muszynska; Denise Michels; Emanuel von Zezschwitz (CHI Extended Abstracts, 2018)

The Struggle is Real: Analyzing Ground Truth Data of TLS (Mis-)Configurations. - Christian Tiefenau; Emanuel von Zezschwitz (CoRR, 2018)

CueAuth: Comparing Touch, Mid-Air Gestures, and Gaze for Cue-based Authentication on Situated Displays. - Mohamed Khamis; Ludwig Trotter; Ville Mäkelä; Emanuel von Zezschwitz; Jens Le; Andreas Bulling; Florian Alt (Proc. ACM Interact. Mob. Wearable Ubiquitous Technol., 2018)

A Usability Evaluation of Let's Encrypt and Certbot: Usable Security Done Right. - Christian Tiefenau; Emanuel von Zezschwitz; Maximilian Häring; Katharina Krombholz; Matthew Smith 001 (CCS, 2019)

"If you want, I can store the encrypted password": A Password-Storage Field Study with Freelance Developers. - Alena Naiakshina; Anastasia Danilova; Eva Gerlitz; Emanuel von Zezschwitz; Matthew Smith 001 (CHI, 2019)

Vision: Exploring Challenges and Opportunities for Usable Authentication in the Smart Home. - Sarah Prange; Emanuel von Zezschwitz; Florian Alt (EuroS&P Workshops, 2019)

"If HTTPS Were Secure, I Wouldn't Need 2FA" - End User and Administrator Mental Models of HTTPS. - Katharina Krombholz; Karoline Busse; Katharina Pfeffer; Matthew Smith 001; Emanuel von Zezschwitz (IEEE Symposium on Security and Privacy, 2019)

"Get a Free Item Pack with Every Activation!" - Do Incentives Increase the Adoption Rates of Two-Factor Authentication? - Karoline Busse; Sabrina Amft; Daniel Hecker; Emanuel von Zezschwitz (CoRR, 2019)

"Please enter your PIN" - On the Risk of Bypass Attacks on Biometric Authentication on Mobile Devices. - Christian Tiefenau; Maximilian Häring; Mohamed Khamis; Emanuel von Zezschwitz (CoRR, 2019)

Making Privacy Graspable: Can we Nudge Users to use Privacy Enhancing Techniques? - Christian Tiefenau; Maximilian Häring; Eva Gerlitz; Emanuel von Zezschwitz (CoRR, 2019)

Emerging Trends in Usable Security and Privacy. - Florian Alt; Emanuel von Zezschwitz (i-com, 2019)

"Get a Free Item Pack with Every Activation!". - Karoline Busse; Sabrina Amft; Daniel Hecker; Emanuel von Zezschwitz (i-com, 2019)

Cash, Cards or Cryptocurrencies? A Study of Payment Culture in Four Countries. - Karoline Busse; Mohammad Tahaei; Katharina Krombholz; Emanuel von Zezschwitz; Matthew Smith 001; Jing Tian; Wenyuan Xu 001 (EuroS&P Workshops, 2020)

Security, Availability, and Multiple Information Sources: Exploring Update Behavior of System Administrators. - Christian Tiefenau; Maximilian Häring; Katharina Krombholz; Emanuel von Zezschwitz (SOUPS @ USENIX Security Symposium, 2020)

"It builds trust with the customers" - Exploring User Perceptions of the Padlock Icon in Browser UI. - Emanuel von Zezschwitz; Serena Chen; Emily Stark 001 (SP (Workshops), 2022)