Volume 2026

Issue 1

• Editors' Introduction
  Gunes Acar (Radboud University), Rob Jansen (U.S. Naval Research Laboratory)
• Gaze3P: Gaze-Based Prediction of User-Perceived Privacy [PDF]
  Mayar Elfares (University of Stuttgart, Germany), Pascal Reisert (University of Stuttgart, Germany), Ralf Küsters (University of Stuttgart, Germany), Andreas Bulling (University of Stuttgart, Germany)
• PriVA-C: Defending Voice Assistants from Fingerprinting Attacks [PDF]
  Dilawer Ahmed (North Carolina State University), Aafaq Sabir (North Carolina State University), Ahsan Zafar (North Carolina State University), Anupam Das (North Carolina State University)
• ``We Need a Standard'': Toward an Expert–Informed Privacy Label for Differential Privacy [PDF]
  Onyinye Dibia (University of Vermont), Mengyi Lu (University of Vermont), Prianka Bhattacharjee (University of Vermont), Joseph Near (University of Vermont), Yuanyuan Feng (University of Vermont)
• Privacy Attacks on Matrix Profiles via Reconstruction Techniques [PDF]
  Haoying Zhang (INSA CVL, Univ. d'Orléans, Inria), Nicolas Anciaux (Inria, INSA CVL, Univ. Paris Saclay), Benjamin Nguyen (INSA CVL, Univ. d'Orléans, Inria), Fabien Girard (ENSTA), Jose Maria de Fuentes (Univ. Carlos III de Madrid), Adrien Boiret (INSA CVL, Univ. d'Orléans, Inria)
• AI-in-the-Loop: Privacy Preserving Real-Time Scam Detection and Conversational Scam-baiting by Leveraging LLMs and Federated Learning [PDF]
  Ismail Hossain (University of Texas at El Paso), Sai Puppala (Southern Illinois University Carbondale), Md Jahangir Alam (University of Texas at El Paso), Sajedul Talukder (University of Texas at El Paso)
• User Perceptions and Attitudes Toward Untraceability in Messaging Platforms [PDF]
  Carla F. Griggio (Aalborg University), Boel Nelson (University of Copenhagen), Zefan Sramek (IIS Lab, The University of Tokyo), Aslan Askarov (Aarhus University)
• SPRINT: Scalable Secure & Differentially Private Inference for Transformers [PDF]
  Francesco Capano (SAP SE), Jonas Böhler (SAP SE), Benjamin Weggenmann (Technische Hochschule Würzburg-Schweinfurt)
• Sanitization or Deception? Rethinking Privacy Protection in Large Language Models [PDF]
  Bipin Paudel (Kansas State University), Bishwas Mandal (Kansas State University), George Amariucai (Kansas State University), Shuangqing Wei (Louisiana State University)
• Argmax and XGBoost Training over Fully Homomorphic Encryption [PDF]
  Ramy Masalha (IBM Research and University of Haifa), Adi Akavia (University of Haifa), Allon Adir (IBM Research), Ehud Aharoni (IBM Research), Eyal Kushnir (IBM Research)
• Linguistic Hooks: Investigating The Role of Language Triggers in Phishing Emails Targeting African Refugees and Students [PDF]
  Mythili Menon (Wichita State University), Nisha Vinayaga-Sureshkanth (University of Texas at San Antonio), Alec Schon (Wichita State University), Kaitlyn Hemberger (University of Kansas), Murtuza Jadliwala (University of Texas at San Antonio)
• dX-Privacy for Text and the Curse of Dimensionality [PDF]
  Hassan Asghar (Macquarie University), Robin Carpentier (Macquarie University), Benjamin Zhao (Macquarie University), Dali Kaafar (Macquarie University)
• What-App? App Usage Detection Using Encrypted LTE/5G Traffic [PDF]
  Jinjin Wang (University of Birmingham), Zishuai Cheng (Beijing University of Posts and Telecommunications), Mihai Ordean (University of Birmingham), Baojiang Cui (Beijing University of Posts and Telecommunications)
• QUICstep: Evaluating connection migration based QUIC censorship circumvention [PDF]
  Seungju Lee (Princeton University), Mona Wang (Princeton University), Watson Jia (Princeton University), Qiang Wu (GFW Report), Henry Birge-Lee (Princeton University), Liang Wang (Princeton University), Prateek Mittal (Princeton University)
• Personal Data Flows and Privacy Policy Traceability in Third-party LLM Apps in the GPT Ecosystem [PDF]
  Juan-Carlos Carrillo (VRAIN, Universitat Politècnica de València, Spain), Jose Luis Martin-Navarro (Aalto University, Finland; VRAIN, Universitat Politècnica de València, Spain), Rongjun Ma (Aalto University, Finland), Jose Such (INGENIO (CSIC-Universitat Politècnica de València), Spain)
• Bot Among Us: Exploring User Awareness and Privacy Concerns About Chatbots in Group Chats [PDF]
  Kai-Hsiang Chou (National Taiwan University), Yi-An Wang (National Taiwan University), Chong Kai Lau (National Taiwan University), Mahmood Sharif (Tel Aviv University), Hsu-Chun Hsiao (National Taiwan University; Academia Sinica)
• How Experts Personalize Privacy & Security Advice for At-Risk Users [PDF]
  Wentao Guo (University of Maryland), Alexander Yang (University of Maryland), Nathan Malkin (New Jersey Institute of Technology), Michelle Mazurek (University of Maryland)
• Location-Enhanced Information Flow for Home Automations [PDF]
  McKenna McCall (Colorado State University), Ben Weinshel (Carnegie Mellon University), Kunlin Cai (University of California, Los Angeles), Ying Li (University of California, Los Angeles), Eric Zeng (Georgetown University), Devika Manohar (Carnegie Mellon University), Lujo Bauer (Carnegie Mellon University), Limin Jia (Carnegie Mellon University), Yuan Tian (University of California, Los Angeles)
• Are Bite-Size Data Safety Details a Healthy Diet for Android Telehealth App Users? Impacts of Privacy Nutrition Labels on Users’ Privacy Perceptions [PDF]
  Alisa Frik (International Computer Science Institute), Subham Mitra (University of California, Berkeley), Priyasha Chatterjee (Max Plank Institute for Security and Privacy), Julia Bernd (International Computer Science Institute)
• ReporTor: Facilitating User Reporting of Issues Encountered in Naturalistic Web Browsing via Tor Browser [PDF]
  Nicholas Micallef (Swansea University), Cameron Cartier (Black Hills Information Security, Inc.), Kevin Gallagher (NOVA LINCS, NOVA School of Science and Technology), Lucas Zagal (University of Utah), Sameer Patil (University of Utah)
• SEED: A Minimal‑Footprint TEE Framework for Verifiable, Confidential Microservice Deployment [PDF]
  Omar Jarkas (The University of Queensland), Ryan K L Ko (The University of Queensland), Naipeng Dong (The University of Queensland), Redowan Mahmud (Curtin University)
• Ephemeral Network-Layer Fingerprinting Defenses [PDF]
  Tobias Pulls (Karlstad University), Topi Korhonen (Independent), Ethan Witwer (Linköping University), Niklas Carlsson (Linköping University)
• Making Sense of Private Advertising: A Principled Approach to a Complex Ecosystem [PDF]
  Kyle Hogan (Massachusetts Institute of Technology), Alishah Chator (Baruch College), Gabriel Kaptchuk (University of Maryland), Mayank Varia (Boston University), Srinivas Devadas (Massachusetts Institute of Technology)
• SilhouetteTell: Practical Video Identification Leveraging Blurred Recordings of Video Subtitles [PDF]
  Guanchong Huang (University of Oklahoma), Song Fang (University of Oklahoma)
• Securing Private Federated Learning in a Malicious Setting: A Scalable TEE-Based Approach with Client Auditing [PDF]
  Shun Takagi (LY Corporation), Satoshi Hasegawa (LY Corporation)
• Word-level Annotation of GDPR Transparency Compliance in Privacy Policies using Large Language Models [PDF]
  Thomas Cory (Technische Universität Berlin), Wolf Rieder (Technische Universität Berlin), Julia Krämer (Erasmus University Rotterdam), Philip Raschke (Technische Universität Berlin), Patrick Herbke (Technische Universität Berlin), Axel Küpper (Technische Universität Berlin)
• Privacy vs. Profit: The Impact of Google's Manifest Version 3 (MV3) Update on Ad Blocker Effectiveness [PDF]
  Karlo Lukic (Goethe University Frankfurt), Lazaros Papadopoulos (Goethe University Frankfurt)
• How We Define Privacy Literacy: Teaching Experiences & Challenges of Community-Engaged Privacy Educators [PDF]
  Tanisha Afnan (University of Michigan), Sheza Naveed (University of Michigan), Griffin Christie (University of Michigan), Jackie Hu (University of Michigan), Byron M. Lowens (Indiana University at Indianapolis), Allison McDonald (Boston University), Florian Schaub (University of Michigan)
• Are we collaborative yet? A Usability Perspective on Mixnet Latency for Real-Time Applications [PDF]
  Killian Davitt (King's College London), Dan Ristea (UCL), Steven J. Murdoch (UCL)
• Obscura: Enabling Ephemeral Proxies for Traffic Encapsulation in WebRTC Media Streams Against Cost-Effective Censors [PDF]
  Afonso Vilalonga (Universidade NOVA de Lisboa & NOVA LINCS), Kevin Gallagher (Universidade NOVA de Lisboa & NOVA LINCS), João S. Resende (INESCTEC, Universidade do Porto), Henrique Domingos (Universidade NOVA de Lisboa & NOVA LINCS)
• Ad Personalization and Transparency in Mobile Ecosystems: A Comparative Analysis of Google's and Apple's EU App Stores [PDF]
  David Breuer (TU Darmstadt), Lucas Becker (TU Darmstadt), Matthias Hollick (TU Darmstadt)