Publications

• Sophie Stephenson, Christopher Nathaniel Page, Miranda Wei, Apu Kapadia, and Franziska Roesner. 2024. Sharenting on TikTok: Exploring Parental Sharing Behaviors and the Discourse Around Children’s Online Privacy. In Proceedings of the 2024 CHI Conference on Human Factors in Computing Systems (CHI '24). Association for Computing Machinery, New York, NY, USA, Article 114, 1–17. https://doi.org/10.1145/3613904.3642447 (acm)
• Sabid Bin Habib Pias, Ran Huang, Donald S. Williamson, Minjeong Kim, and Apu Kapadia. 2024. The Impact of Perceived Tone, Age, and Gender on Voice Assistant Persuasiveness in the Context of Product Recommendations. In Proceedings of the 6th ACM Conference on Conversational User Interfaces (CUI '24). Association for Computing Machinery, New York, NY, USA, Article 20, 1–15. https://doi.org/10.1145/3640794.3665545 (bibtex) (acm)
  * Best Paper Award (Top 2% of Submissions) 
• Akter, Taslima, Manohar Swaminathan, and Apu Kapadia. "Toward Effective Communication of AI-Based Decisions in Assistive Tools: Conveying Confidence or Doubt to People with Visual Impairments at Accelerated Speech." (2024) (bibtex)(pdf)
• Aaron Necaise, Tangila Islam Tanni, Aneka Williams, Yan Solihin, Apu Kapadia, and Mary Jean Amon. 2023. User Preferences for Interdependent Privacy Preservation Strategies in Social Media. Proc. ACM Hum.-Comput. Interact. 7, CSCW2, Article 271 (October 2023), 30 pages. https://doi.org/10.1145/3610062 (acm)
• Sabid Bin Habib Pias, Imtiaz Ahmad, Taslima Akter, Apu Kapadia, and Adam J. Lee. 2022. Decaying Photos for Enhanced Privacy: User Perceptions Towards Temporal Redactions and 'Trusted' Platforms. Proc. ACM Hum.-Comput. Interact. 6, CSCW2, Article 437 (November 2022), 30 pages. https://doi.org/10.1145/3555538 (acm)
• Imtiaz Ahmad, Taslima Akter, Zachary Buher, Rosta Farzan, Apu Kapadia, and Adam J. Lee. 2022. Tangible Privacy for Smart Voice Assistants: Bystanders' Perceptions of Physical Device Controls. Proc. ACM Hum.-Comput. Interact. 6, CSCW2, Article 364 (November 2022), 31 pages. https://doi.org/10.1145/3555089 (acm)
• Taslima Akter, Tousif Ahmed, Apu Kapadia, and Manohar Swaminathan. 2022. Shared Privacy Concerns of the Visually Impaired and Sighted Bystanders with Camera-Based Assistive Technologies. ACM Trans. Access. Comput. 15, 2, Article 11 (June 2022), 33 pages. https://doi.org/10.1145/3506857 (acm)
• Cheng Guo, Brianne Campbell, Apu Kapadia, Michael K. Reiter, and Kelly Caine,
  “Effect of Mood, Location, Trust, and Presence of Others on Video-Based Social Authentication,”
  To Appear in the 30th USENIX Security Symposium (USENIX Security ’21),
  August 11–13, 2021.
  (bibtex)
• Rakibul Hasan, Bennett I. Bertenthal, Kurt Hugenberg, and Apu Kapadia,
  “Your Photo is so Funny that I don’t Mind Violating Your Privacy by Sharing it: Effects of Individual Humor Styles on Online Photo-sharing Behaviors,”
  In Proceedings of the ACM SIGCHI Conference on Human Factors in Computing Systems (CHI ’21).
  (bibtex)(acm)(5-min video)
• Taslima Akter, Tousif Ahmed, Apu Kapadia, and Manohar Swaminathan,
  “Privacy Considerations of the Visually Impaired with Camera Based Assistive Technologies: Misrepresentation, Impropriety, and Fairness,”
  In Proceedings of The 22nd International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS ’20),
  Article 32, 14 pages, Athens, Greece, October 2020.
  (bibtex)(acm)(1-min video)
• Taslima Akter, Bryan Dosono, Tousif Ahmed, Apu Kapadia, and Bryan Semaan,
  “I am uncomfortable sharing what I can’t see”: Privacy Concerns of the Visually Impaired with Camera Based Assistive Applications,”
  To appear in the Proceedings of 29th USENIX Security Symposium (USENIX Security ’20),
  Boston, USA, August 2020.
  (bibtex)(usenix)(12-min video)
• Sruti Bhagavatula, Lujo Bauer, and Apu Kapadia,
  “(How) Do people change their passwords after a breach?,”
  Proceedings of Workshop on Technology and Consumer Protection (ConPro ’20),
  San Francisco, USA, May 2020.
  (bibtex)(ieee)(15-min video)
• Rakibul Hasan, David Crandall, Mario Fritz, and Apu Kapadia,
  “Automatically Detecting Bystanders in Photos to Reduce Privacy Risks,”
  In Proceedings of the IEEE Symposium on Security & Privacy (IEEE S&P/Oakland ’20),
  Volume 1, pp. 318–335, San Francisco, USA, May 2020.
  (bibtex)(ieee)(1-min video)(16-min video)
• Mary Jean Amon, Rakibul Hasan, Kurt Hugenberg, Bennett I. Bertenthal, and Apu Kapadia,
  “Influencing Photo Sharing Decisions on Social Media: A Case of Paradoxical Findings,”
  In Proceedings of the IEEE Symposium on Security & Privacy (IEEE S&P/Oakland ’20),
  Volume 1, pp. 1350–1366, San Francisco, USA, May 2020.
  (bibtex)(ieee)(17-min video)
• Tousif Ahmed, Rakibul Hasan, Kay Connelly, David Crandall, and Apu Kapadia,
  “Conveying Situational Information to People with Visual Impairments,”
  In Proceedings of CHI 2019 Workshop on Addressing the Challenges of Situationally-Induced Impairments and Disabilities in Mobile Interaction (SIID ’19),
  May 4–9, 2019, Glasgow, UK.
  (bibtex)(arXiv)
• Yasmeen Rashidi, Tousif Ahmed, Felicia Patel, Emily Fath, Apu Kapadia, Christena Nippert-Eng, and Norman Makoto Su,
  “You don’t want to be the next meme”: College Students’ Workarounds to Manage Privacy in the Era of Pervasive Photography,”
  In Proceedings of the USENIX Symposium on Usable Privacy and Security (SOUPS ’18),
  pp. 143–157, Baltimore, Maryland, August 12–14, 2018.
  (bibtex)(usenix)
• Rakibul Hasan, Eman Hassan, Yifang Li, Kelly Caine, David J. Crandall, Roberto Hoyle, and Apu Kapadia,
  “Viewer Experience of Obscuring Scene Elements in Photos to Enhance Privacy,”
  To appear in ACM SIGCHI Conference on Human Factors in Computing Systems (CHI ’18),
  Montréal, Canada, April 21–26, 2018.
  (bibtex)
• Eman Hassan, Rakibul Hasan, Patrick Shaffer, David Crandall, and Apu Kapadia,
  “Cartooning for Enhanced Privacy in Lifelogging and Streaming Video,”
  In Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition Workshop on Computer Vision Challenges and Opportunities for Privacy and Security (CV-COPS ’17),
  pp. 29–38, Honolulu, Hawaii, USA, July 21, 2017.
  (bibtex)(cvpr)(ieee)
• Roberto Hoyle, Srijita Das, Apu Kapadia, Adam Lee, and Kami Vaniea,
  “Was my message read?: Privacy and Signaling on Facebook Messenger,”
  In Proceedings of The ACM SIGCHI Conference on Human Factors in Computing Systems (CHI ’17),
  pp. 3838–3842, Denver, CO, USA, May 6–11, 2017.
  (bibtex)(acm)
• Roberto Hoyle, Srijita Das, Apu Kapadia, Adam Lee, and Kami Vaniea,
  “Viewing the Viewers: Publishers’ Desires and Viewers’ Privacy Concerns in Social Networks,”
  In Proceedings of the ACM Conference on Computer Supported Cooperative Work and Social Computing (CSCW ’17),
  pp. 555–566, Portland, OR, USA, Feb 25–Mar 1, 2017.
  (bibtex)(acm)
• Tousif Ahmed, Patrick Shaffer, Kay Connelly, David Crandall, and Apu Kapadia,
  “Addressing Physical Safety, Security, and Privacy for People with Visual Impairments,”
  In Proceedings of the Twelfth Symposium on Usable Privacy and Security (SOUPS ’16),
  pp. 341–354, Denver, CO, USA, Jun 22–24, 2016.
  (bibtex)(usenix)
• Shirin Nilizadeh, Anne Groggel, Peter Lista, Srijita Das, Yong-Yeol Ahn, Apu Kapadia, and Fabio Rojas,
  “Twitter’s Glass Ceiling: The Effect of Perceived Gender on Online Visibility,”
  In Proceedings of The International AAAI Conference on Web and Social Media (ICWSM ’16),
  pp. 289–298, Cologne, Germany, May 17–20, 2016.
  (bibtex)(aaai)
• Mohammed Korayem, Robert Templeman, Dennis Chen, David Crandall, and Apu Kapadia,
  “Enhancing Lifelogging Privacy by Detecting Screens,”
  In Proceedings of The ACM SIGCHI Conference on Human Factors in Computing Systems (CHI ’16)
  (bibtex)(project page)
  Honorable Mention Award (Top 4% of Submissions)
• Zheng Dong, Apu Kapadia, Jim Blythe, L. Jean Camp,
  “Beyond the lock icon: real-time detection of phishing websites using public key certificates,”
  In Proceedings of APWG Symposium on Electronic Crime Research (eCrime ’15)
  pp. 1–12, May 26–29, 2015.
  (bibtex)(ieee)
  Honorable Mention for Best Paper Award
• Tousif Ahmed, Roberto Hoyle, Kay Connelly, David Crandall, and Apu Kapadia,
  “Privacy Concerns and Behaviors of People with Visual Impairments,”
  To appear (Paper) in The ACM SIGCHI Conference on Human Factors in Computing Systems (CHI ’15),
  Seoul, South Korea, April 18–23, 2015.
  (bibtex)
• Qatrunnada Ismail, Tousif Ahmed, Apu Kapadia, and Michael K. Reiter,
  “Crowdsourced Exploration of Security Configurations,”
  To appear (Paper) in The ACM SIGCHI Conference on Human Factors in Computing Systems (CHI ’15),
  Seoul, South Korea, April 18–23, 2015.
  (bibtex)
• Roberto Hoyle, Robert Templeman, Denise Anthony, David Crandall, and Apu Kapadia,
  “Sensitive Lifelogs: A Privacy Analysis of Photos from Wearable Cameras,”
  To appear (Note) in The ACM SIGCHI Conference on Human Factors in Computing Systems (CHI ’15),
  Seoul, South Korea, April 18–23, 2015.
  (bibtex)
• Sameer Patil, Roberto Hoyle, Roman Schlegel, Apu Kapadia, and Adam Lee,
  “Interrupt Now or Inform Later?: Comparing Immediate and Delayed Privacy Feedback,”
  To appear (Note) in The ACM SIGCHI Conference on Human Factors in Computing Systems (CHI ’15),
  Seoul, South Korea, April 18–23, 2015.
  (bibtex)
• Shirin Nilizadeh, Apu Kapadia, and Yong-Yeol Ahn,
  “Community-Enhanced De-anonymization of Online Social Networks,”
  In Proceedings of the 21st ACM Conference on Computer and Communications Security (CCS ’14),
  pp. 537–548, Scottsdale, Arizona, USA, November 3–7, 2014.
  (bibtex)(acm)
• Robert Templeman, Roberto Hoyle, Apu Kapadia, and David Crandall,
  “Reactive Security: Responding to Visual Stimuli from Wearable Cameras,”
  In Proceedings of the Workshop on Usable Privacy & Security for wearable and domestic ubIquitous DEvices (UPSIDE ’14),
  pp. 1297–1306, Seattle, WA, USA, Sep 14, 2014.
  (bibtex)(acm)
• Roberto Hoyle, Robert Templeman, Steven Armes, Denise Anthony, David Crandall, and Apu Kapadia,
  “Privacy Behaviors of Lifeloggers using Wearable Cameras,”
  In Proceedings of The ACM International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp ’14),
  pp. 571–582, Seattle, WA, USA, September 13–17, 2014.
  (bibtex)(acm)(supplement)
• Luke Hutton, Tristan Henderson, and Apu Kapadia,
  “Short Paper: “Here I am, now pay me!”: Privacy Concerns in Incentivised Location-Sharing Systems,”
  In Proceedings of The 7th ACM Conference on Security and Privacy in Wireless and Mobile Networks (WiSec ’14),
  pp. 81–86, Oxford, UK, July 23–25, 2014.
  (bibtex)(acm)
• Sameer Patil, Roman Schlegel, Apu Kapadia, and Adam J. Lee,
  “Reflection or Action?: How Feedback and Control Affect Location Sharing Decisions,”
  In Proceedings of The ACM SIGCHI Conference on Human Factors in Computing Systems (CHI ’14),
  pp. 101–110, Toronto, Canada, Apr 26–May 1, 2014.
  (bibtex)(acm)
• Robert Templeman, Mohammed Korayem, David Crandall, and Apu Kapadia,
  “PlaceAvoider: Steering First-Person Cameras away from Sensitive Spaces,”
  In Proceedings of The 21st Annual Network & Distributed System Security Symposium (NDSS ’14),
  San Diego, CA, February 23–26, 2014.
  (bibtex)
• Vaibhav Garg, Sameer Patil, Apu Kapadia, and L. Jean Camp,
  “Peer-produced Privacy Protection,”
  In Proceedings of the IEEE International Symposium on Technology and Society (ISTAS ’13),
  pp. 147–154, Toronto, Canada, June 27–29, 2013.
  (bibtex)(ieee)
• Robert Templeman, Zahid Rahman, David Crandall, and Apu Kapadia,
  “PlaceRaider: Virtual Theft in Physical Spaces with Smartphones,”
  In Proceedings of The 20th Annual Network & Distributed System Security Symposium (NDSS ’13),
  San Diego, CA, February 24–27, 2013.
  MIT Technology Review arXiv Blog’s “Best of 2012″
  (bibtex)(isoc)(arXiv preprint)(media coverage)
• Shirin Nilizadeh, Sonia Jahid, Prateek Mittal, Nikita Borisov, and Apu Kapadia,
  “Cachet: A Decentralized Architecture for Privacy Preserving Social Networking with Caching,”
  In Proceedings of The 8th ACM International Conference on Emerging Networking Experiments and Technologies (CoNEXT ’12),
  pp. 337–348, Nice, France, December 10–13, 2012.
  (bibtex)(acm sigcomm)(acm)
• Man Ho Au and Apu Kapadia,
  “PERM: Practical Reputation-Based Blacklisting without TTPs,”
  In Proceedings of The 19th ACM Conference on Computer and Communication Security (CCS ’12),
  pp. 929–940, Raleigh, NC, October 16–18, 2012.
  (bibtex)(acm)
• Zheng Dong, Vaibhav Garg, Jean Camp, and Apu Kapadia,
  “Pools, Clubs and Security: Designing for a Party Not a Person,”
  In Proceedings of The New Security Paradigms Workshop (NSPW ’12),
  pp. 77–86, Bertinoro, Italy, September 19–21, 2012.
  (bibtex)(acm)
• Robert Templeman and Apu Kapadia,
  “GANGRENE: Exploring the Mortality of Flash Memory,”
  In Proceedings of The 7th USENIX Workshop on Hot Topics in Security (HotSec ’12),
  Bellevue, WA, August 7, 2012.
  (bibtex)(usenix)
• Sameer Patil, Greg Norcie, Apu Kapadia, and Adam J. Lee,
  “Reasons, Rewards, Regrets: Privacy Considerations in Location Sharing as an Interactive Practice,”
  In Proceedings of The Eighth Symposium on Usable Privacy and Security (SOUPS ’12),
  Article 5, 15 pages, Washington DC, July 11–13, 2012.
  (bibtex)(soups)(acm)
• Yann Le Gall, Adam J. Lee, and Apu Kapadia,
  “PlexC: A Policy Language for Exposure Control,”
  In Proceedings of The 17th ACM Symposium on Access Control Models and Technologies (SACMAT ’12),
  pp. 219–228, Newark, NJ, USA, June 20–22, 2012.
  (bibtex)(acm)
• Sonia Jahid, Shirin Nilizadeh, Prateek Mittal, Nikita Borisov, and Apu Kapadia,
  “DECENT: A Decentralized Architecture for Enforcing Privacy in Online Social Networks,”
  In Proceedings of the 4th IEEE International Workshop on Security and Social Networking (SESOC ’12),
  pp. 326–332, Lugano, Switzerland, March 19, 2012.
  (bibtex)(ieee)
• Sameer Patil, Yann Le Gall, Adam J. Lee, and Apu Kapadia,
  “My Privacy Policy: Exploring End-user Specification of Free-form Location Access Rules,”
  In Proceedings of the Workshop on Usable Security (USEC ’12),
  pp. 86–97, Bonaire, March 2, 2012. © Springer-Verlag, LNCS 7398.
  (bibtex)(usec)(springer)
• Man Ho Au, Apu Kapadia, and Willy Susilo,
  “BLACR: TTP-Free Blacklistable Anonymous Credentials with Reputation,”
  In Proceedings of The 19th Annual Network & Distributed System Security Symposium (NDSS ’12),
  San Diego, CA, February 5–8, 2012.
  (bibtex)(isoc)
• Huina Mao, Xin Shuai, and Apu Kapadia,
  “Loose Tweets: An Analysis of Privacy Leaks on Twitter,”
  In Proceedings of the 2011 ACM Workshop on Privacy in the Electronic Society (WPES ’11),
  pp. 1–11, Chicago, Illinois, October 17, 2011.
  (bibtex)(acm)
• Shirin Nilizadeh, Naveed Alam, Nathaniel Husted, and Apu Kapadia,
  “Pythia: A Privacy Aware, Peer-to-Peer Network for Social Search,”
  In Proceedings of the 2011 ACM Workshop on Privacy in the Electronic Society (WPES ’11),
  pp. 43–48, Chicago, Illinois, October 17, 2011.
  (bibtex)(acm)
• Roman Schlegel, Apu Kapadia, and Adam J. Lee,
  “Eyeing your Exposure: Quantifying and Controlling Information Sharing for Improved Privacy,”
  In Proceedings of the 2011 Symposium on Usable Privacy and Security (SOUPS ’11),
  Article 14, 14 pages, Pittsburgh, Pennsylvania, July 20–22, 2011.
  (bibtex)(soups)(acm)
• Roman Schlegel, Kehuan Zhang, Xiaoyong Zhou, Mehool Intwala, Apu Kapadia, and XiaoFeng Wang,
  “Soundcomber: A Stealthy and Context-Aware Sound Trojan for Smartphones,”
  In Proceedings of the 18th Annual Network & Distributed System Security Symposium (NDSS ’11),
  pp. 17–33, San Diego, CA, February 6–9, 2011.
  *Note: We changed the name from Soundminer to Soundcomber to avoid potential trademark issues with the Soundminer name. The malware discussed in the article is not related to or connected with Soundminer Inc., a Canadian firm specializing in the manufacture and sale of audio software to manage audio files.
  (bibtex)(isoc)(video demo)(media coverage)
• Emily K. Adams, Mehool Intwala, and Apu Kapadia,
  “MeD-Lights: A Usable Metaphor for Patient Controlled Access to Electronic Health Records,”
  In Proceedings of the 1st ACM International Health Informatics Symposium (IHI ’10),
  pp. 800–808, Arlington, VA, November 11–12, 2010.
  (bibtex)(acm)

• Ruj Akavipat, Apurv Dhadphale, Apu Kapadia, and Matthew Wright,
  “ReDS: Reputation for Directory Services in P2P Systems,”
  In Proceedings of The ACM Workshop on Insider Threats (WITS ’10),
  pp. 47–54, Chicago, IL, October 8, 2010.
  (bibtex)(acm)

Refereed Journal Articles and Conference Papers

• Sanchari Das, Tousif Ahmed, Apu Kapadia, and Sameer Patil,
  “Does This Photo Make Me Look Good? How Posters, Outsiders, and Friends Evaluate Social Media Photo Posts,”
  Proceedings of the ACM Journal: Human-Computer Interaction: Computer Supported Cooperative Work and Social Computing (PACM ’21/CSCW ’21),
  Vol. 5, Issue CSCW1, Article 46, 32 pages (April 2021).
  (bibtex)(acm)
• Yuchen Liu, Ziyu Xiang, Eun Ji Seong, Apu Kapadia, and Donald S. Williamson,
  “Defending Against Microphone-Based Attacks with Personalized Noise,”
  Proceedings on Privacy Enhancing Technologies (PoPETs ’21/PETS ’21),
  Vol. 2021, No. 2, pp. 130–150 (April 2021).
  (bibtex)(popets)(18-min video)
• Imtiaz Ahmad, Rosta Farzan, Apu Kapadia, and Adam J. Lee,
  “Tangible Privacy: Towards User-Centric Sensor Designs for Bystander Privacy,”
  Proceedings of the ACM Journal: Human-Computer Interaction: Computer Supported Cooperative Work and Social Computing (PACM ’20/CSCW ’20),
  Vol. 4, Issue CSCW2, Article 116, 28 pages (October 2020).
  (bibtex)(acm)(5-min video)
• Roberto Hoyle, Luke Stark, Qatrunnada Ismail, David Crandall, Apu Kapadia, and Denise Anthony,
  “Privacy Norms and Preferences for Photos Posted Online,”
  ACM Transactions on Computer-Human Interaction (ACM TOCHI),
  Vol. 27, No. 4, 27 pages, (August 2020).
  (bibtex)
• Adam J. Lee, Rosta Farzan, Apu Kapadia, and Imtiaz Ahmad,
  “Making Sense of Risk in an Increasingly Cyber‐physical World,”
  Critical Quarterly,
  Vol. 62, No. 1, pp. 40–48, 2020.
  (bibtex)(wiley)
• Yasmeen Rashidi, Apu Kapadia, Christena Nippert-Eng, and Norman Makoto Su,
  “It’s easier than causing confrontation”: Sanctioning Strategies to Maintain Social Norms of Content Sharing and Privacy on Social Media,”
  Proceedings of the ACM Journal: Human-Computer Interaction: Computer Supported Cooperative Work and Social Computing (PACM ’20/CSCW ’20), Vol. 4, Issue CSCW1, Article 23, 25 pages (May 2020).
  (bibtex)
• Anne Groggel, Shirin Nilizadeh, Yong-Yeol Ahn, Apu Kapadia, and Fabio Rojas,
  “Race and the beauty premium: Mechanical Turk workers’ evaluations of Twitter accounts,”
  Information, Communication & Society,
  Vol. 22, No. 5, pp. 709–716, (March 2019).
  (bibtex)(tandfonline)
• Tousif Ahmed, Apu Kapadia, Venkatesh Potluri, and Manohar Swaminathan,
  “Up to a Limit? Privacy Concerns of Bystanders and Their Willingness to Share Additional Information with Visually Impaired Users of Assistive Technologies“,
  Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT ’18/UbiComp ’18),
  Vol. 2, No. 3, Article 89, 27 pages (September 2018).
  (bibtex)(acm)
• Bryan Dosono, Yasmeen Rashidi, Taslima Akter, Bryan Semaan, and Apu Kapadia,
  “Challenges in Transitioning from Civil to Military Culture: Hyper-Selective Disclosure through ICTs“,
  Proceedings of the ACM Journal: Human-Computer Interaction: Computer Supported Cooperative Work and Social Computing (PACM ’17/CSCW ’18),
  To appear, Vol. 1, No. 2, Article 41, 23 pages (November 2017).
  (bibtex)
• Qatrunnada Ismail, Tousif Ahmed, Kelly Caine, Apu Kapadia, and Michael Reiter,
  “To Permit or Not to Permit, That is the Usability Question: Crowdsourcing Mobile Apps’ Privacy Permission Settings,”
  Proceedings on Privacy Enhancing Technologies (PoPETs ’17),
  Vol. 2017, No. 4, pp. 118–136 (October 2017).
  (bibtex)(pets)
• Tousif Ahmed, Roberto Hoyle, Patrick Shaffer, Kay Connelly, David Crandall, and Apu Kapadia,
  “Understanding Physical Safety, Security, and Privacy Concerns of People with Visual Impairments,”
  IEEE Internet Computing, Special Issue on Usable Security
  Vol. 21, No. 3, pp. 56–63 (May/June 2017).
  (bibtex)(ieee)
• Minho Shin, Cory Cornelius, Apu Kapadia, Nikos Triandopoulos, and David Kotz.,
  “Location Privacy for Mobile Crowd Sensing through Population Mapping,”
  Sensors, Vol 15, Issue 7, pp. 15285–15310 (June 2015).
  (bibtex)(mdpi)
• Ruj Akavipat, Mahdi N. Al-Ameen, Apu Kapadia, Zahid Rahman, Roman Schlegel, and Matthew Wright,
  “ReDS: A Framework for Reputation-Enhanced DHTs“,
  IEEE Transactions on Parallel and Distributed Systems (IEEE TPDS),
  Volume 25, Issue 2, pp. 321–331 (February 2014).
  Available as IEEE online preprint, 2013
  (bibtex)(ieee preprint)
• Man Ho Au, Patrick P. Tsang, and Apu Kapadia,
  “PEREA: Practical TTP-Free Revocation of Repeatedly Misbehaving Anonymous Users,”
  ACM Transactions on Information and System Security (ACM TISSEC),
  Volume 14, Issue 4, Article 29, 34 pages (December 2011).
  (Extends our CCS ’08 conference paper, which was Runner-up for PET Award 2009: Outstanding Research in Privacy Enhancing Technologies)
  (bibtex)(acm)
• Patrick P. Tsang, Apu Kapadia, Cory Cornelius, and Sean W. Smith,
  “Nymble: Blocking Misbehaving Users in Anonymizing Networks,”
  IEEE Transactions on Dependable and Secure Computing (IEEE TDSC),
  Volume 8, Number 2, pp. 256–269 (March–April 2011).
  (bibtex)(ieee)(src/)(project)
• Minho Shin, Cory Cornelius, Dan Peebles, Apu Kapadia, David Kotz, and Nikos Triandopoulos,
  “AnonySense: A System for Anonymous Opportunistic Sensing,”
  Journal of Pervasive and Mobile Computing (PMC),
  Volume 7, Issue 1, pp. 16–30 (February 2011).
  (bibtex)(elsevier)
• Patrick P. Tsang, Man Ho Au, Apu Kapadia and Sean W. Smith,
  “BLAC: Revoking Repeatedly Misbehaving Anonymous Users Without Relying on TTPs,”
  ACM Transactions on Information and System Security (ACM TISSEC),
  Volume 13, Issue 4, Article 39, 33 pages (December 2010).
  (Extends our CCS ’07 conference paper, which was Runner-up for PET Award 2009: Outstanding Research in Privacy Enhancing Technologies)
  (bibtex)(acm)

Refereed poster abstracts, workshop and work-in-progress papers

• Roberto Hoyle, Sameer Patil, Dejanae White, Jerald Dawson, Paul Whalen, and Apu Kapadia,
  “Attire: Conveying Information Exposure through Avatar Apparel (Demo)” ,
  In Proceedings of The 2012 ACM Conference on Computer Supported Cooperative Work Companion (CSCW ’13),
  pp. 19–22, San Antonio, Texas, USA, February 23–27, 2013.
  (bibtex)(acm)
• Sameer Patil, Greg Norcie, Apu Kapadia, and Adam J. Lee,
  “Check out where I am!”: Location Sharing Motivations, Preferences, and Practices,
  In Proceedings of the ACM SIGCHI Conference on Human Factors in Computing Systems Extended Abstracts (CHI EA ’12),
  pp. 1997–2002, Austin, TX, May 5–10, 2012.
  (bibtex)(acm)
• Sameer Patil and Apu Kapadia,
  “Are You Exposed? Conveying Information Exposure (Extended Abstract),”
  In Proceedings of The 2012 ACM Conference on Computer Supported Cooperative Work Companion (CSCW ’12),
  pp. 191–194, Seattle, WA, February 11–15, 2012.
  (bibtex)(acm)
• Matthew Wright, Apu Kapadia, Mohan Kumar, and Apurv Dhadphale,
  “ReDS: Reputation for Directory Services in P2P Systems (Extended Abstract),”
  In Proceedings of the 6th Annual Cyber Security and Information Intelligence Re- search Workshop (CSIIRW ’10),
  Article 71, 4 pages, Oak Ridge, TN, April 21–23, 2010.
  (bibtex)(acm)