I am a PhD candidate in Computer Science and Engineering at the University of Washington, advised by Yoshi Kohno.

I’m generally interested in the security and privacy-related needs and practices of populations during crises. This summer, I am working with Yasemin Acar at the Max Planck Institute for Security and Privacy.

You can email me at simkol at


Would You Rather: A Focus Group Method for Eliciting and Discussing Formative Design Insights with Children
Lucy Simko, Britnie Chin, Sungmin Na, Harkiran Kaur Saluja, Tian Qi Zhu, Tadayoshi Kohno, Alexis Hiniker, Jason Yip, and Camille Cobb. Interaction Design and Children (IDC) 2021.
[ Practical guidance ] [ Talk ]

Defensive Technology Use by Political Activists During the Sudanese Revolution
Alaa Daffalla*, Lucy Simko*, Tadayoshi Kohno, Alexandru G. Bardas. IEEE Security and Privacy (Oakland) 2021.
* co-first authors listed in alphabetical order.
[ Talk by Alaa Daffalla ]

COVID-19 Contact Tracing and Privacy: A Longitudinal Study of Public Opinion
Lucy Simko, Jack Lucas Chang, Maggie Jiang, Ryan Calo, Franziska Roesner, Tadayoshi Kohno
Not peer reviewed.
[ Version 2.0, December 2020 ] [ Version 1.0, May 2020 ]

A Privacy-Focused Systematic Analysis of Online Status Indicators
Camille Cobb, Lucy Simko, Tadayoshi Kohno, Alexis Hiniker. Privacy Enhancing Technologies Symposium (PETS) 2020.
[ Talk by Camille Cobb]

User Experiences with Online Status Indicators
Camille Cobb, Lucy Simko, Tadayoshi Kohno, Alexis Hiniker. ACM CHI Conference on Human Factors in Computing Systems (CHI) 2020.

Computer Security and Privacy for Refugees in the United States
Lucy Simko, Ada Lerner, Samia Ibtasam, Franziska Roesner, Tadayoshi Kohno. IEEE Security and Privacy (Oakland) 2018.
[ Talk ]

Recognizing and Imitating Programmer Style: Adversaries in Program Authorship Attribution
Lucy Simko, Luke Zettlemoyer, Tadayoshi Kohno. Privacy Enhancing Technologies Symposium (PETS) 2018.

CS/crypto activities for kids
With Camille Cobb, Anna Kornfeld Simpson, Ada Lerner, Eric Zeng, and Alex Takakuwa.

AwesomeBus is an interactive visualization of public transit in Seattle that allows Seattleites and visitors to explore bus routes. I worked on this project with Eric Zeng for our Data Visualization class in Spring 2016.