I am an Assistant Professor of Electrical and Computer Engineering and a member of WINLAB at Rutgers University. My research interests are at the intersection of human-computer interaction, mobile computing, and security engineering. I am particularly interested in privacy, social computing, context-aware communications, and (un)distracted driving. There is always room for exceptional students in my group. If you are interested, send a note about what have you done beyond classwork: janne@winlab.rutgers.edu.

I have finally decided to revise and clean up my website. Stay tuned. :-)

Our group has two papers appearing in the journal Proceedings of ACM IMWUT and being invited to presented at UbiComp'17. The first paper appeared in IMWUT 1(1): Guessing Attacks on User-Generated Gesture Passwords and the second one will appear in IMWUT 1(3): Auto++: Detecting Cars Using Embedded Microphones in Real-Time.

Our paper Composition Policies for Gesture Passwords: User Choice, Security, Usability and Memorability will appear in IEEE CNS'17.

Our group has again two papers appearing in CHI this year! One of the papers shows how we predict the levels of your busyness with smartphones: How Busy Are You? Predicting the Interruptibility Intensity of Mobile Users. The work is also first to introduce personality traits to interruptibility prediction. Video preview on Youtube. The other paper is: Where Usability and Security Go Hand-in-Hand: Robust Gesture-Based Authentication for Mobile Systems.

We have an invited paper No Time At All: Opportunity Cost of Android Permissions appearing at HotWireless'16!

Two papers accepted to CHI'16! Our study of Bitcoin users and non-users: Of Two Minds, Multiple Addresses, and One Ledger: Characterizing Opinions, Knowledge, and Perceptions of Bitcoin Across Users and Non-Users and the first field study of free-form gesture authentication: Free-Form Gesture Authentication in the Wild.

Whose Move is it Anyway? Authenticating Smart Wearable Devices Using Unique Head Movement Patterns will appear in PerCom 2016!

Understanding Motivations for Using Grocery Shopping Applications will appear in IEEE Pervasive Computing October-December 2015 Special Issue on Pervasive Food.

Is Secure and Usable Smartphone Authentication Asking Too Much? appeared in IEEE Computer May 2015 issue. Securacy: An Empirical Investigation of Android Applications’ Network Usage, Privacy and Security appeared in WiSec 2015.

Two PhD students in my group won prestigous fellowships! Gradeigh D. Clark was awarded the National Defense Science and Engineering Graduate (NDSEG) fellowship and Xianyi Gao was awarded the NSF Graduate Research Fellowship (GRFP)! Congratulations to both for these great achievements!

Elastic Pathing: Your Speed is Enough to Track You appeared in UbiComp'14! See also the Elastic Pathing Project Website for source code, traces and more! We received the Best Paper Nominee Award (4% of papers).

Engineering Gesture-Based Authentication Systems appeared in a special issue of IEEE Pervasive Computing January-March 2015 edition! You can also read the no frills version on arXiv.

Text Entry Method Affects Password Security appeared in LASER, proceedings version finally available from USENIX. Two papers accepted to WPES: General Area or Approximate Location? How People Understand Location Permissions and Private Browsing: an Inquiry on Usability and Privacy Protection.

Our work on User-Generated Free-Form Gestures for Authentication: Security and Memorability appeared in MobiSys'14! Uncovering Facebook Side Channels and User Attitudes appeared in W2SP'14. Two papers from our group in USEC'14: A Field Study of Run-Time Location Access Disclosures on Android Smartphones and Should I Protect You? Understanding Developers’ Behavior to Privacy-Preserving APIs. The Motivations and Experiences of the On-Demand Mobile Workforce appeared in CSCW'14! We also had papers appearing in UbiComp'12 and MobiCom'12 (best paper award), see details below! The works have also been featured in MIT Technology Review, New York Times, Tech Republic and other venues.

Selected Publications:

Recent Service:

Selected Talks: