Can Johnny be a whistleblower? A qualitative user study of a social authentication Signal extension in an adversarial scenario. - Maximilian Häring; Julia Angelika Grohs; Eva Tiefenau; Matthew Smith 001; Christian Tiefenau (SOUPS @ USENIX Security Symposium, 2024)

A Qualitative Study on How Usable Security and HCI Researchers Judge the Size and Importance of Odds Ratio and Cohen's d Effect Sizes. - Anna-Marie Ortloff; Julia Angelika Grohs; Simon Lenau; Matthew Smith 001 (CHI, 2025)

"They are responsible for ensuring that I can continue to use the service." Investigating Users' Expectations Towards 2FA Recovery in Germany. - Eva Tiefenau; Julia Angelika Grohs; Maximilian Häring; Matthew Smith 001; Christian Tiefenau (CHI, 2025)