William Harold Enck

Education

Academic and Research Appointments

Industrial Experience

Selected Publications

1. Luke Deshotels, Costin Carabas, Jordan Beichler, Razvan Deaconescu, and William Enck, Kobold: Evaluating Decentralized Access Control for Remote NSXPC Methods on iOS, in Proceedings of the IEEE Symposium on Security and Privacy (S&P), San Francisco, CA, 2020, pp. 1056–1070.
   [PDF] (acceptance rate=12.3%)
2. Benjamin Andow, Samin Yaseer Mahmud, Wenyu Wang, Justin Whitaker, William Enck, Bradley Reaves, Kapil Singh, and Tao Xie, PolicyLint: Investigating Internal Privacy Policy Contradictions on Google Play, in Proceedings of the USENIX Security Symposium, Santa Clara, CA, 2019, pp. 585–602.
   [PDF] (acceptance rate=16%)
3. Luke Deshotels, Razvan Deaconescu, Mihai Chiroiu, Lucas Davi, William Enck, and Ahmad-Reza Sadeghi, SandScout: Automatic Detection of Flaws in iOS Sandbox Profiles, in Proceedings of the ACM Conference on Computer and Communications Security (CCS), Vienna, Austria, 2016.
   [PDF] (acceptance rate=16.5%)
4. Adwait Nadkarni, Benjamin Andow, William Enck, and Somesh Jha, Practical DIFC Enforcement on Android, in Proceedings of the USENIX Security Symposium, Austin, TX, 2016.
   [PDF] (acceptance rate=15.6%)
5. Ruowen Wang, William Enck, Douglas Reeves, Xinwen Zhang, Peng Ning, Dingbang Xu, Wu Zhou, and Ahmed Azab, EASEAndroid: Automatic Policy Analysis and Refinement for Security Enhanced Android via Large-Scale Semi-Supervised Learning, in Proceedings of the USENIX Security Symposium, Washington, DC, 2015.
   [PDF] (acceptance rate=15.7%)
6. Stephan Heuser, Adwait Nadkarni, William Enck, and Ahmad-Reza Sadeghi, ASM: A Programmable Interface for Extending Android Security, in Proceedings of the USENIX Security Symposium, San Diego, CA, 2014.
   [PDF] (acceptance rate=19.1%) (supercedes TUD-CS-2014-0063)
7. Adwait Nadkarni and William Enck, Preventing Accidental Data Disclosure in Modern Operating Systems, in Proceedings of the 20th ACM Conference on Computer and Communications Security (CCS), Berlin, Germany, 2013.
   [PDF] (acceptance rate=19.8%)
8. Rahul Pandita, Xusheng Xiao, Wei Yang, William Enck, and Tao Xie, WHYPER: Towards Automating Risk Assessment of Mobile Applications, in Proceedings of the USENIX Security Symposium, Washington, D.C., 2013.
   [PDF] (acceptance rate=16.2%)
9. William Enck, Damien Octeau, Patrick McDaniel, and Swarat Chaudhuri, A Study of Android Application Security, in Proceedings of the 20th USENIX Security Symposium, San Francisco, CA, 2011.
   [PDF] (acceptance rate=17.2%) (supercedes NAS-0144)
10. William Enck, Peter Gilbert, Byung-Gon Chun, Landon P. Cox, Jaeyeon Jung, Patrick McDaniel, and Anmol N. Sheth, TaintDroid: An Information-Flow Tracking System for Realtime Privacy Monitoring on Smartphones, in Proceedings of the 9th USENIX Symposium on Operating Systems Design and Implementation (OSDI), Vancouver, BC, 2010.
    [PDF] (acceptance rate=16.1%) (supercedes NAS-0120)

Student Advising

Honors

• Best Paper, 2024 ACM Conference on Data and Application Security and Privacy (CODASPY), with co-authors K. Virgil English, Nathaniel Bennett, Seaver Thorn, Kevin Butler, and Patrick Traynor, June 2024.
• Distinguished Paper, 2024 ISOC Network and Distributed Systems Security Symposium (NDSS), with co-authors Elizabeth Lin, Igibek Koishybayev, Trevor Dunlap, and Alexandros Kapravelos, February 2024.
• Best Paper, 2022 Best Paper Award from IEEE Security & Privacy Magazine by the IEEE Computer Society Publications Board, with co-author Laurie Williams
• Carla Savage Award for Professors, October 2022, Department of Computer Science, NC State University
• Best Student Paper, 2022 ACM Symposium on Access Control Models and Technologies (SACMAT), with co-authors Iffat Anjum, Daniel Kostecki, Ethan Leba, Jessica Sokal, Rajit Bharambe, Cristina Nita-Rotaru, and Bradley Reaves, June 2022.
• SIGOPS Hall of Fame Award, with co-authors Peter Gilbert, Byung-Gon Chun, Landon P. Cox, Jaeyeon Jung, Patrick McDaniel, and Anmol N. Sheth, November 2020.
• Carla Savage Award for Associate Professors, October 2020, Department of Computer Science, NC State University
• Best Paper, 12th ACM Conference on Security and Privacy in Wireless and Mobile Networks, with co-authors TJ OConnor and Brad Reaves, May 2019.
• Distinguished Paper, ACM Asia Conference on Computer and Communications Security (ASIACCS), with Ruowen Wang, Ahmed M. Azab, Ninghui Li, Peng Ning, Xun Chen, Wenbo Shen, and Yueqiang Cheng, April 2017.
• Most Receptive Graduate Professor Outside of the Classroom Award, Department of Computer Science, North Carolina State University, 2016
• Best Paper, 6th ACM Conference on Security and Privacy in Wireless and Mobile Networks, with co-authors Saurabh Chakradeo, Brad Reaves, and Patrick Traynor, April 2013.
• National Science Foundation Faculty Early Career Development Award (CAREER), 2013.
• CGS/ProQuest Distinguished Dissertation Award Nominee, 2012.
• Alumni Association Dissertation Award, Pennsylvania State University, 2010-2011.
• Graduate Research Assistant Award, Department of Computer Science and Engineering, The Pennsylvania State University, April 2010.
• Best Paper, 25th Annual Computer Security Applications Conference, with co-authors Machigar Ongtang, Stephen McLaughlin, and Patrick McDaniel, December 2009.
• Google Security and Product Safety Acknowledgement, in recognition of efforts in improving the security of the Google Android cellular phone operating system.
• USENIX Student Travel Awards, USENIX Security, 2007; USENIX Security, 2008; USENIX OSDI, 2010.
• ACM Student Travel Award, ACM CCS, 2009.
• National Science Foundation Graduate Research Fellowship, Honorable Mention, 2006.
• H. Thomas and Dorothy Willits Hallowell Scholarship, Pennsylvania State University, 2003.
• Chris Mader Scholarship, Pennsylvania State University, 2002.
• Lockheed Martin Engineering Scholars Award, Pennsylvania State University, 2002.
• Richard A. McQuade Memorial Scholarship, Pennsylvania State University, 2001.

Affiliations

• The Association for Computing Machinery (ACM)
• The Institute of Electrical and Electronics Engineers (IEEE)
• USENIX Advanced Computing Systems Association (USENIX)
• Information Systems Security Association (ISSA)

Professional Activities

University Service

• NCSU Institutional Review Board (IRB) Full Board Member: 2018-2020, 2020-2023
• Chair faculty search (sub-)committee for security: 2014, 2015, 2016, 2017, 2018, 2022, 2023
• Focus group lead for NCSU CSC security courses: 2018-present
• Chair of NCSU CSC Departmental BPC Plan task force: 2021-2022
• Point of Contact (PoC), NSA Center of Academic Excellence in Research (CAE-R): 2014-present

Professional Societies

• Vice President, USENIX Association Board of Directors: 2024-2026
• Secretary, USENIX Association Board of Directors: 2022-2024
• Director at Large, USENIX Association Board of Directors: 2020-2022
• Board Member (USENIX Representative), Computer Research Association (CRA) Board of Directors: 2024-present

Journal Editorial Positions

• Associate Editor: ACM Transactions on Privacy and Security (TOPS), 2020-2024.
• Associate Editor: ACM Transactions on Internet Technology (TOIT), 2015-2020.
• Department Editor: IEEE Security and Privacy Magazine, 2016-2023.
• Guest Editor: Special issue on the 2018 USENIX Security Symposium, IEEE Security and Privacy Magazine, 2019.
• Guest Editor: Special issue on Security and Privacy in Mobile Platforms, IEEE Transactions on Dependable and Secure Computing (TDSC), 2013.

Conference and Workshop Organization

• Steering Committee: USENIX Security Symposium, 2019-present.
• Steering Committee: ACM Conference on Security and Privacy in Wireless and Mobile Networks (WiSec), 2016-2021.
• Steering Committee: ACM CCS Workshop on Security and Privacy in Smartphones and Mobile Devices (SPSM), 2014-2016.
• PC co-Chair: IEEE Symposium on Security and Privacy (S&P), 2024, 2025.
• Program co-Chair: CAE-R CoP Research Symposium, 2023.
• Program co-Chair: NSF Secure and Trustworthy Cyberspace Principal Investigators' Meeting (SaTC PI Meeting), 2022.
• PC co-Chair: USENIX Security Symposium, 2018.
• PC co-Chair: ACM CCS Workshop on Security and Privacy in Smartphones and Mobile Devices (SPSM), 2011, 2012.
• PC co-Chair: ACM Conference on Security and Privacy in Wireless and Mobile Networks (WiSec), 2016.
• PC co-Chair: USENIX Workshop on Offensive Technologies (WOOT), 2017.
• Student PC Chair: IEEE Symposium on Security and Privacy (S&P), 2017.
• Shadow PC co-Chair: ACM ASIA Conference on Computer and Communications Security (ASIACCS), 2017.
• General Chair: ACM CCS Workshop on Security and Privacy in Smartphones and Mobile Devices (SPSM), 2013.
• Poster Session Chair: USENIX Security Symposium, 2013.
• Poster PC Member: ACM Conference on Computer and Communications Security (CCS), 2011, 2013.

Technical Program Committees (total = 118)

• ACM Conference on Computer and Communications Security (CCS): 2014, 2015, 2016.
• IEEE Symposium on Security and Privacy (S&P): 2012, 2013, 2014, 2023.
• ISOC Network and Distributed System Security Symposium (NDSS): 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021.
• USENIX Security Symposium: 2011, 2012, 2013, 2015, 2017, 2019, 2020, 2021, 2022, 2023.
• ACM CCS Workshop on IoT Security and Privacy: 2017.
• ACM ASIA Conference on Computer and Communications Security (ASIACCS): 2017, 2021, 2022.
• ACM Conference on Data and Application Security and Privacy (CODASPY): 2013, 2014, 2015, 2016.
• ACM Conference on Security and Privacy in Wireless and Mobile Networks (WiSec): 2013, 2015, 2017, 2019, 2020, 2021, 2022, 2023.
• ACM CCS Workshop on Software Supply Chain Offensive Research and Ecosystem Defenses (SCORED): 2022, 2023.
• ACM Symposium on Access Control Models and Technology (SACMAT): 2020, 2021, 2022.
• Annual Computer Security Applications Conference (ACSAC): 2013, 2014, 2015, 2019, 2020.
• CoronaDef Workshop: 2021.
• AsiaCCS Workshop on Security in Embedded Systems and Smartphones (SESP): 2013.
• DFRWS Annual Digital Forensics Conference: 2012, 2013, 2014, 2015.
• Financial Cryptography and Data Security (FC): 2013, 2014, 2015, 2019, 2020, 2021.
• ICDE Workshop on Secure Data Management on Smartphones and Mobiles: 2012.
• IEEE LCN Workshop on Security in Communications Networks (SICK): 2012.
• Information Security Conference (ISC): 2009.
• Innovations in Mobile Privacy and Security (IMPS): 2016, 2017.
• International Conference on Information Security and Assurance (ISA): 2009.
• International Conference on Information Systems Security (ICISS): 2007, 2012, 2013, 2014, 2015.
• International Conference on Information Technology (ICIT): 2009.
• International Conference on Internet Monitoring and Protection (ICIMP): 2009, 2010, 2011, 2012, 2013.
• International Conference on Mobile Systems, Applications, and Services (MobiSys): 2014.
• International Conference on Parallel and Distributed Systems (ICPADS): 2013.
• International Conference on Privacy and Security in Mobile Systems (PRISMS): 2013.
• International Conference on Trust and Trustworthy Computing (TRUST): 2013.
• International ICST Conference on Security and Privacy in Mobile Information and Communication Systems (MobiSec): 2012.
• International Symposium on Engineering Secure Software and Systems (ESSoS): 2017.
• International Symposium on Research in Attacks, Intrusions and Defenses (RAID): 2015, 2016.
• International Workshop on Ethics in Computer Security (EthiCS): 2022.
• International Workshop on Secure Internet of Things (SIoT): 2016, 2017, 2019.
• International Workshop on Security (IWSEC): 2010, 2011.
• International Workshop on Trustworthy Embedded Devices (TrustED): 2011, 2012, 2013.
• International World Wide Web Conference (WWW): 2012, 2016, 2019.
• Mobile Security Technologies Workshop (MoST): 2014, 2015.
• New Security Paradigms Workshop (NSPW): 2012, 2013.
• Privacy Enhancing Technologies Symposium (PETS): 2015, 2016.
• Symposium and Bootcamp on the Science of Security (HotSoS): 2014, 2015, 2017, 2019, 2023.
• Symposium on Usable Privacy and Security (SOUPS): 2015.
• USENIX Workshop on Hot Topics in Security (HotSec): 2012.
• USENIX Workshop on Offensive Technologies (WOOT): 2016, 2018.
• Workshop on Cyber Security Experimentation and Test (CSET): 2016, 2019.

Reviewer

Reviewer (Journal and Book): ACM Computing Surveys, 2009, 2011, 2015; ACM Transactions on Information and System Security (TISSEC), 2008, 2011, 2015; ACM Transactions on Computer Systems (TOCS), 2019; ACM Transactions on Internet Technology (TOIT), 2006, 2009, 2010; ACM Transactions on Mobile Computing (TMC), 2012, 2013, 2017; ACM Transactions on Privacy and Security (TOPS), 2016, 2019, 2020, 2022; Handbook of Computer Networks, 2006; IBM Journal of Research and Development, 2013; IEEE Communications Letters, 2008, 2009; Elsevier Computers & Security (COSE), ; IEEE Intenet Computing, 2016; IEEE Security and Privacy Magazine, 2010, 2013, 2014; IEEE Transactions on Computers (TC), 2009; IEEE Transactions on Paralllel and Distributed Systems (TPDS), 2012, 2013; IEEE Transactions on Information Forensics and Security (TIFS), 2012, 2015, 2017; IEEE Transactions on Paralllel and Distributed Systems (TPDS), 2014; ACM Transactions on Sensor Networks (TOSN), 2019; IEEE Transactions on Software Engineering (TSE), 2007, 2010, 2017, 2018; International Journal of Information Security, 2013; Journal of Autonomic and Trusted Computing (JoATC), 2006; Security and Communication Networks (SCN), 2011, 2014; Software: Practice and Experience (SPE), 2013; Transactions on Computational Science (Springer-Verlag), 2010;

Public Speaking

Invited Talks

• Enhancing Vulnerability Information Using Automated Analysis, East Carolina University (ECU), Greenville, NC (virtual), March, 2023.
• Keynote - Reflections on a Decade of Mobile Security Research, ACM Conference on Security and Privacy in Wireless and Mobile Networks (WiSec), San Antonio, TX, May, 2022.
• Analysis of Access Control Enforcement in Android, The Ohio State University, Columbus, OH (virtual), November, 2020.
• Keynote - Analysis of Access Control Enforcement in Android, ACM Symposium on Access Control Models and Technologies (SACMAT), Barcelona, Spain (virtual), June, 2020.
• Identifying File Re-Delegation in Android System Services, Google ASPIRE Summit, Mountain View, CA, February, 2020.
• Analysis of Access Control Enforcement in Android, Triangle Area Privacy and Security Day (TAPS), Durham, NC, October, 2019.
• Risks Emerging as Innovation Moves Towards Greater use of 'Smart' Devices, Looking Around the Corner: Emerging Risks and ERM Practices, Raleigh, NC, October, 2019.
• Analysis of Access Control Enforcement in Android, College of William and Mary, Williamsburg, VA, September, 2019.
• Cybersecurity in an Academic Environment, North Carolina Cyber Executive Summit, Raleigh, NC, September, 2019.
• Analysis of iOS Access Control Policy, King's College London (KCL), London, UK, March, 2019.
• Analysis of iOS Access Control Policy, CyberSecurity@KAIST International Workshop, Daejeon, Korea, June, 2018.
• Using Text Analytics to Enhance Security Analysis of Mobile Applications, ACM ASIACCS 2018, Incheon, Korea, June, 2018.
• Using Text Analytics to Enhance Security Analysis of Mobile Applications, University of North Carolina Charlotte (UNCC), Charlotte, NC, January, 2018.
• HONEYSCOPE: IoT Device Protection with Deceptive Network Views, ARO Workshop on HoneyThings: Autonomous and Resilient Cyber Deception, Charlotte, NC, January, 2018.
• Analysis of iOS Access Control Policy, BSides Raleigh, Raleigh, NC, October, 2017.
• Mobile Security, Umicore USA Inc., Raleigh, NC, September, 2017.
• Using Text Analytics to Enhance Security Analysis of Mobile Applications, ETH Zurich, Zurich, Switzerland, July, 2017.
• Towards Practical Information Flow Control in Modern Operating Systems, University of Florida, Gainesville, FL, June, 2016.
• Towards Practical Information Flow Control in Modern Operating Systems, Royal Holloway, University of London, Egham, Surrey, UK, April, 2016.
• Android Security Modules, Qualcomm Mobile Security Summit, San Diego, CA, April, 2015.
• Access Control in Modern Operating Systems, TU Darmstadt, Darmstadt, Germany, November, 2013.
• WHYPER: Towards Automating Risk Assessment of Mobile Applications, IBM, Research Triangle Park, NC, October, 2013.
• Smartphone Security, Qualcomm, Santa Clara, CA, May, 2013.
• Smartphone Security: Concerns and Defenses, The US Department of Justice and US Department of State West African Cybersecurity and Cybercrime Workshop, Accra, Ghana, January, 2013.
• Smartphone Security: Concerns and Defenses, Black Data Processing Associates (BDPA), Triangle Chapter, RTP, NC, November, 2012.
• Defending Users Against Smartphone Apps: Techniques and Future Directions, University of North Carolina, Chapel Hill, Chapel Hill, NC, November, 2012.
• Defending Users Against Smartphone Apps: Techniques and Future Directions, Purdue University, West Lafayette, IN, September, 2012.
• Smartphone Security: Concerns and Defenses, The US Department of Justice and US Department of State West African Cybersecurity and Cybercrime Workshop, Dakar, Senegal, September, 2012.
• Analysis Techniques for Mobile Operating System Security, State of North Carolina OITS Security Liaisons Meeting, Raleigh, NC, June, 2012.
• Defending Users Against Smartphone Apps: Techniques and Future Directions, University of Washington, Seattle, WA, April, 2012.
• Analysis Techniques for Mobile Operating System Security, Raleigh ISSA Chapter, Raleigh, NC, April, 2012.
• Defending Users Against Smartphone Apps: Techniques and Future Directions, Keynote - International Conference on Information Systems Security (ICISS), Kolkata, India, December, 2012.
• Analysis Techniques for Mobile Operating System Security, Georgetown University, Washington, DC, March, 2011.
• Analysis Techniques for Mobile Operating System Security, University of Southern California, Los Angeles, CA, February, 2011.
• Analysis Techniques for Mobile Operating System Security, University of Maryland, College Park, MD, February, 2011.
• Analysis Techniques for Mobile Operating System Security, Naval Postgraduate School, Monterey, CA, February, 2011.
• Analysis Techniques for Mobile Operating System Security, Polytechnic Institute of New York University, New York, NY, January, 2011.
• Analysis Techniques for Mobile Operating System Security, Carleton University, Ottawa, ON, Canada, January, 2011.
• Analysis Techniques for Mobile Operating System Security, North Carolina State University, Raleigh, NC, November, 2010.
• TaintDroid: An Information-Flow Tracking System for Realtime Privacy Monitoring on Smartphones, University of Pennsylvania, Philadelphia, PA, October, 2010.
• Enhanced Security Policy Frameworks for Android, Carleton University, Ottawa, ON, CA, March, 2010.
• On Lightweight Mobile Phone Certification, University of Delaware, Newark, DE, March, 2010.
• On Lightweight Mobile Phone Certification, University of Notre Dame, South Bend, IN, October, 2009.
• Understanding Android's Security Framework, University of Washington, Seattle, WA, July, 2009.
• Understanding Android's Security Framework, Georgia Institute of Technology, Atlanta, GA, January, 2009.

Presentations

• Expectation Context, Google Security Research Summit, Mountain View, CA, March, 2015.
• Enhancing the Security and Access Control of Modern Operating Systems, NSF SaTC PI Meeting, Arlington, VA, January, 2015.
• A Study of Android Application Security, 20th USENIX Security Symposium, San Francisco, CA, August, 2011.
• TaintDroid: An Information-Flow Tracking System for Realtime Privacy Monitoring on Smartphones, 9th USENIX Symposium on Operating Systems Design and Implementation (OSDI), Vancouver, BC, Canada, October, 2010.
• On Lightweight Mobile Phone Certification, 16th ACM Conference on Computer and Communications Security (CCS), Chicago, IL, November, 2009.
• Lightweight Information Tracking for Mobile Phones, 18th USENIX Security Symposium, Works in Progress Session, Montreal, QC, CA, August, 2009.
• Defending Against Attacks on Main Memory Persistence, 24th Annual Computer Security Applications Conference (ACSAC), Anaheim, CA, December, 2008.
• PinUP: Pinning User Files to Known Applications, 24th Annual Computer Security Applications Conference (ACSAC), Anaheim, CA, December, 2008.
• PinUP: Pinning User Files to Known Applications, 17th USENIX Security Symposium, Poster Session, San Jose, CA, August, 2008.
• Systematic Issues in the Hart InterCivic and Premier Voting Systems: Reflections Following Project EVEREST, USENIX/ACCURATE Electronic Voting Technology Workshop, San Jose, CA, July, 2008.
• Protecting User Files by Reducing Application Access, 16th USENIX Security Symposium, Works in Progress Session, Boston, MA, August, 2007.
• PRESTO: A tool for Configuration Management at a Massive Scale, USENIX Annual Technical Conference, Santa Clara, CA, June, 2007.
• PRESTO: A tool for Configuration Management at a Massive Scale, Workshop on Programmable Routers for the Extensible Services of TOmorrow (PRESTO), Princeton, NJ, May, 2007.
• Mitigating DoS Through Basic TPM Operations, 14th USENIX Security Symposium, Works in Progress Session, Baltimore, MD, August, 2005.

Tutorials

• Intro to Securing Android Applications, Raleigh Chapter of ISSA, Raleigh, NC, December, 2014.
• Text Analysis for Security, ACM Conference on Computer and Communications Security (CCS), Scottsdale, AZ, November, 2014.
• Intro to Developing Android Applications, Raleigh Chapter of ISSA, Raleigh, NC, October, 2014.
• Understanding Android's Security Framework, 15th ACM Conference on Computer and Communications Security (CCS), Alexandria, VA, October, 2008.

Panels

• CSAM 2020: Google Security Panel, NC State University, Raleigh, NC, October, 2020.
• A Conversation on Cybersecurity, PNC Thought Leadership Series, Raleigh, NC, April, 2019.
• Cyber Security Challenges, Trends and Research & Development Focus Areas, Southeast Region Cyber Security & Technology Symposium, Chapel Hill, NC, August, 2017.
• Why-oT: What are the real security challenges in IoT? (Moderator), ACM Conference on Security and Privacy in Wireless and Mobile Networks (WiSec), Boston, MA, July, 2017.
• Experimental Testbeds for Mobile Devices and Large-scale Testing on Mobile Devices, Workshop on Cyber Security Experimentation and Test (CSET), co-located with the USENIX Security Symposium, Washington, DC, August, 2015.
• Building Security into Modern Mobile Platforms, Federal Trade Commission (FTC) public forum on Mobile Security: Potential Threats and Solutions, Washington D.C., June, 2013 (link).
• Mobile Security Issues, The US Department of Justice and US Department of State West African Cybersecurity and Cybercrime Workshop, Accra, Ghana, January, 2013.
• Mobile Security Issues, The US Department of Justice and US Department of State West African Cybersecurity and Cybercrime Workshop, Dakar Senegal, September, 2012.