Private Location-Based Services
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Location-based services from are quickly gaining popularity. Many such services track the user's location and make use of it as needed. While tracking raises privacy concerns, it is believed to be unavoidable if users want the benefits of location-based services. In this talk I will give several examples of services that provide location-based functionality without learning the user's location. Our goal is to show that privacy and functionality are not always in conflict. We will also discuss our experiences with deploying these mechanisms in the real world. This is joint work with Arvind Narayanan, Mike Hamburg, and Narendran Thiagarajan.
About the speaker: Dr. Boneh heads the applied crypto group at the Computer Science
department at Stanford University. Dr. Boneh's research focuses on applications of cryptography to computer security. His work includes cryptosystems with novel properties, security for mobile devices, web security, digital copyright protection, and cryptanalysis. He is the author of over a hundred technical publications in the field and a recipient of the Packard Award, the Alfred P. Sloan Award, the RSA award, and the Terman Award.
CISAC Conference Room
Dan Boneh
Not in residence
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dabo@cs.stanford.edu
Rajeev Motwani Professor in the School of Engineering and Professor of Electrical Engineering
Co-director of the Stanford Computer Security Lab
Co-director of the Stanford Cyber Initiative
Affiliate Faculty at CISAC
Professor Boneh heads the applied cryptography group and co-direct the computer security lab. Professor Boneh's research focuses on applications of cryptography to computer security. His work includes cryptosystems with novel properties, web security, security for mobile devices, and cryptanalysis. He is the author of over a hundred publications in the field and is a Packard and Alfred P. Sloan fellow. He is a recipient of the 2014 ACM prize and the 2013 Godel prize. In 2011 Dr. Boneh received the Ishii award for industry education innovation. Professor Boneh received his Ph.D from Princeton University and joined Stanford in 1997.
Seminars
A Forensic Dissection of Stuxnet
Related Multimedia
US Policy Toward Afghanistan, What’s Next?
November 19, 3:45PM
Breakout Session
Following a decade of war, the departure of all U.S. troops from Iraq and a significant drawdown of troops in Afghanistan are all but imminent. These drawdowns – and the framework in which these drawdowns transpire – will have major implications for U.S. national security, bilateral and regional relations, and the image of the U.S. in the world. We will be joined by Dr. Dan E. Caldwell, a Distinguished Professor of Political Science at Pepperdine University and the author of Vortex of Conflict: U.S. Policy Toward Afghanistan, Pakistan and Iraq; Ms. Anja Manuel, Principal at RiceHadley Group LLC; and Mr. Frederic Wehrey, Senior Policy Analyst at the RAND Corporation, to discuss these timely issues.
Information on the event is available at: http://www.pacificcouncil.org/page.aspx?pid=730
Anja Manuel
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anja@rhgm.com
Affiliate
Former diplomat, author, and advisor on foreign policy, Anja Manuel is Co-Founder and Principal along with former Secretary of State Condoleezza Rice, former National Security Advisor Stephen Hadley, and former Secretary of Defense Robert Gates, in Rice, Hadley, Gates & Manuel LLC, a strategic consulting firm that helps US companies navigate international markets.
Anja is the author of the critically acclaimed This Brave New World: India, China, and the United States, published by Simon and Schuster, and numerous articles and papers.
She is the Executive Director of the Aspen Strategy Group and Aspen Security Forum, a premier bipartisan forum on foreign policy in the United States.
From 2005 to 2007, she served as an official at the U.S. Department of State, as Special Assistant to the Undersecretary for Political Affairs Nicholas Burns, responsible for Asia policy.
Earlier in her career, Anja was an attorney at WilmerHale, working on Supreme Court and international cases and representing clients before the US Congress, Supreme Court, Department of Justice, Department of Defense, and the SEC. She began her career as an investment banker at Salomon Brothers in London.
A cum laude graduate of Harvard Law School and Stanford University, Anja also lectured and was a research affiliate at Stanford University from 2009 - 2019, and 2024-now, teaching courses on US Foreign Policy in Asia and Technology Policy.
Anja is a frequent speaker on foreign policy and technology policy, is a commentator for TV and radio (NBC/MSNBC, Bloomberg News, Fox Business, BBC, NPR, etc.), and writes for publications ranging from the Washington Post, New York Times, Financial Times, Foreign Affairs, The Atlantic, and Fortune, among others.
Anja currently serves on the corporate boards of Ripple Labs Inc. and Hims & Hers Health, Inc. and the Applied Materials Secure Innovation Advisory Board. Additionally, she is a former member of the Defense Policy Board for the U.S. Department of Defense
She has serves/d on the boards/advisory boards of National Committee on US-China Relations, CARE.org, Center for a New American Security, Flexport Inc., Synapse Inc., and the boards of the Overseas Shipholding Group, Inc., American Ditchley Foundation, and formerly Governor Brown’s California Export Council. She is a member of the Council on Foreign Relations.
Anja lives in San Francisco with her husband and two children.
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Dan Caldwell
Distinguished Professor of International Relations
Speaker
Pepperdine University
Frederic Wehrey
Senior Policy Analyst
Speaker
the RAND Corporation
Panel Discussions
WAR: Ethical Challenges on the Horizon
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Stanford's two-year Ethics and War series will come to a close on May 16 with "WAR: Ethical Challenges on the Horizon."
What upcoming challenges will force leaders to rethink the balance between morality and war?
What will this ethical debate look like?
How do these paradigm shifts impact national security?
For additional information on the series, please visit the Stanford Ethics and War series website.
Oak Lounge
Charles Dunlap
Maj. General, USAF (Ret.), Center on Law, Ethics and National Security, Duke
Panelist
Scott D. Sagan
CISAC
Stanford University
Encina Hall, E202
Stanford, CA 94305-6165
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ssagan@stanford.edu
The Caroline S.G. Munro Professor of Political Science
The Bass University Fellow in Undergraduate Education
Senior Fellow, Freeman Spogli Institute for International Studies
Scott D. Sagan is the Caroline S.G. Munro Professor of Political Science, the Bass University Fellow in Undergraduate Education, and a Senior Fellow at the Center for International Security and Cooperation, where he previously served as the social science co-director. He is the Inaugural Harry Frank Guggenheim Fellow for Nuclear Ethics and Security at the Carnegie Council for Ethics in International Affairs (2026-2027). Sagan also serves as co-chair of the American Academy of Arts and Sciences’ Committee on International Security Studies. Before joining the Stanford faculty, he was a lecturer in the Department of Government at Harvard University and served as special assistant to the director of the Organization of the Joint Chiefs of Staff in the Pentagon.
Sagan is the author of Moving Targets: Nuclear Strategy and National Security (Princeton University Press, 1989); The Limits of Safety: Organizations, Accidents, and Nuclear Weapons (Princeton University Press, 1993); and, with co-author Kenneth N. Waltz, The Spread of Nuclear Weapons: An Enduring Debate (W.W. Norton, 2012). He is the co-editor of Insider Threats (Cornell University Press, 2017) with Matthew Bunn; and co-editor of The Fragile Balance of Terror (Cornell University Press, 2022) with Vipin Narang. Sagan was also the guest editor of a two-volume special issue of Daedalus: Ethics, Technology, and War (Fall 2016) and The Changing Rules of War (Winter 2017).
Recent publications include “Creeds and Contestation: How US Nuclear and Legal Doctrine Influence Each Other,” with Janina Dill, in a special issue of Security Studies (December 2025); “Kettles of Hawks: Public Opinion on the Nuclear Taboo and Noncombatant Immunity in the United States, United Kingdom, France, and Israel”, with Janina Dill and Benjamin A. Valentino in Security Studies (February 2022); “The Rule of Law and the Role of Strategy in U.S. Nuclear Doctrine” with Allen S. Weiner in International Security (Spring 2021); “Does the Noncombatant Immunity Norm Have Stopping Power?” with Benjamin A. Valentino in International Security (Fall 2020); and “Just War and Unjust Soldiers: American Public Opinion on the Moral Equality of Combatants” and “On Reciprocity, Revenge, and Replication: A Rejoinder to Walzer, McMahan, and Keohane” with Benjamin A. Valentino in Ethics & International Affairs (Winter 2019).
In 2022, Sagan was awarded Thérèse Delpech Memorial Award from the Carnegie Endowment for International Peace at their International Nuclear Policy Conference. In 2017, he received the International Studies Association’s Susan Strange Award which recognizes the scholar whose “singular intellect, assertiveness, and insight most challenge conventional wisdom and intellectual and organizational complacency" in the international studies community. Sagan was also the recipient of the National Academy of Sciences William and Katherine Estes Award in 2015, for his work addressing the risks of nuclear weapons and the causes of nuclear proliferation. The award, which is granted triennially, recognizes “research in any field of cognitive or behavioral science that advances understanding of issues relating to the risk of nuclear war.” In 2013, Sagan received the International Studies Association's International Security Studies Section Distinguished Scholar Award. He has also won four teaching awards: Stanford’s 1998-99 Dean’s Award for Distinguished Teaching; Stanford's 1996 Hoagland Prize for Undergraduate Teaching; the International Studies Association’s 2008 Innovative Teaching Award; and the Monterey Institute for International Studies’ Nonproliferation Education Award in 2009.
Former co-director, Center for International Security and Cooperation
CV
Document
sagan_cv_sept_2026.pdf
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Debra Satz
Philosophy, and Center for Ethics in Society, Stanford
Panelist
Scotty McLennan
Dean for Religious Life, Stanford
Moderator
Seminars
Afghanistan: The Road Ahead
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About the topic: This talk will provide a current affairs assessment of the situation in Afghanistan. It will present the trajectory of the counterinsurgency campaign highlighting the security and governance challenges--including the building up of the Afghan National Security Forces, the economic sustainability of the state and private sector, as well as issues pertaining to minority and women's rights. The talk will also offer a range of likely endgames in light of the 2014 withdrawal.
About the Speaker: Fotini Christia joined the MIT faculty in the fall of 2008. She received her PhD in Public Policy at Harvard University, and has been a recipient of research fellowships from the Harvard Academy for International and Area Studies, the Weatherhead Center for International Affairs, the Olin Institute for Strategic Studies and the Belfer Center for Science and International Affairs among others. Her research interests deal with issues of ethnicity, conflict and cooperation in the Muslim world. Fotini has written opinion pieces on her experiences from Afghanistan, Iran, the West Bank and Gaza and Uzbekistan for Foreign Affairs, the New York Times, the Washington Post and the Boston Globe. She graduated magna cum laude with a joint BA in Economics-Operations Research from Columbia College and a Masters in International Affairs from the School of International and Public Affairs at Columbia University.
CISAC Conference Room
Fotini Christia
Assistant Professor of Political Science, MIT
Speaker
Seminars
A Forensic Dissection of Stuxnet
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The Stuxnet computer worm is perhaps the most complicated piece of malicious software ever built - roughly 50 times the size of the typical computer virus. This threat leveraged a huge array of new techniques to spread itself, conceal itself and to attack Iranian nuclear enrichment centrifuges. This talk will provide a detailed dissection of the Stuxnet worm, answering such questions as how it spread, how it evaded detection, what it did once it found its target, and ultimately, how successful it was.
About the speaker: Carey Nachenberg is a Fellow and Chief Architect at Symantec corporation, the world's largest computer security provider. As Chief Architect, Mr. Nachenberg drives the technical strategy for all of Symantec’s core security technologies and security content, which in total protect hundreds of millions of customers around the world. During his time at Symantec, Mr. Nachenberg has led the design and development of Symantec’s core antivirus, intrusion prevention and reputation-based security technologies; his work in these areas have garnered over fifty United States patents.
He holds BS and MS degrees in Computer Science and Engineering from University of California at Los Angeles, where he continues to serve as an Adjunct Assistant Professor of Computer Science and a member of UCLA’s Computer Science Alumni Advisory Board.
CISAC Conference Room
Carey Nachenberg
Vice President and Symantec Fellow
Speaker
Symantec Corporation
Seminars
Predictability of Human Behavior
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Vast resources are devoted to predicting human behavior in domains such as economics, popular culture, and national security, but the quality of such predictions is usually poor. It is tempting to conclude that this inability to make good predictions is a consequence of some fundamental lack of predictability on the part of humans. However, our recent work offers evidence that the failure of standard prediction methods does not indicate an absence of human predictability but instead reflects: 1.) misunderstandings regarding which features of human dynamics actually possess predictive power, and 2.) the fact that, until recently, it has not been possible to measure these predictive features in real world settings.
This talk introduces some of the science behind this basic observation and demonstrates its utility through three case studies. We begin by considering social groups in which individuals are influ- enced by the behavior of others; in these situations, social influence is known to decrease the ex ante predictability of the ensuing social dynamics. We show that, interestingly, these same social forces can increase the extent to which the outcome of a social process can be predicted in its very early stages. This finding is then leveraged to design prediction methods which outperform existing techniques for predicting social group dynamics.
The second case study involves analysis of the predictability of adversary behavior in the coevo- lutionary “arms races” that exist between attackers and defenders in many domains, including cyber security, counterterrorism, fraud prevention, and various markets. Our analysis reveals that conventional wisdom regarding these coevolving systems is incomplete, and provides insights which enable the development of proactive cyber defense methods that are much more effective than standard techniques. Finally, we consider the task of predicting human behavior at the level of individuals. In particular, we show that a given individual’s mobility patterns can be predicted with surprising accuracy, and conversely that knowledge of even a small portion of a person’s travel patterns permits reliable identification of that individual.
About the speaker: Rich Colbaugh received his Ph.D. in Mechanical Engineering from The Pennsylvania State University in 1986. He presently holds a joint appointment with the New Mexico Institute of Mining and Technology, where he is Chief Scientist of ICASA and a Professor in both the Mechanical Engineering and Management Departments, and Sandia National Laboratories, where he is a member of the Analytics and Cryptography Department. His research activities have focused on the modeling, analysis, and control of dynamical systems of importance in nature and society. Much of this work involves the study of very large, complex networks, including those of relevance to national security, socioeconomic systems, advanced technology, and biology.
Dr. Colbaugh spent 2001-2006 with the U.S. Intelligence Community in Washington DC advising senior leadership on counterterrorism and counterproliferation programs. Since 2007 he has concentrated his research and development efforts on social media analytics, attracting support for this program from agencies such as the Department of Defense, the Department of Homeland Security, the Department of Energy, and the National Science Foundation.
Reuben W. Hills Conference Room
Rich Colbaugh
Sandia National Laboratory; Chief Scientist, Institute for Complex and Adaptive Systems, New Mexico Institute of Mining and Technology
Speaker
Seminars
Nuclear Reactor Technology Transfers: A Review of Experiences in the Republic of Korea and China
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There are currently 60 nuclear reactors under construction worldwide with nearly half of these projects being built in China. There is no doubt that East Asia is emerging as a leader in the international nuclear community where China and the Republic of Korea (ROK) are playing major roles as a result of their aggressive new plant build programs. Both China and South Korea present very interesting case studies where the former is rapidly building up domestic expertise in nuclear construction while the latter has gone one step further in capitalizing successfully on a nuclear export business. Both countries have relied heavily on external commercial support in building up this expertise. In the case of South Korea, the “Koreanization” of nuclear power took place in the 1980’s and 1990’s, first with a large number of Western builds and ultimately a complete indigenization of pressurized water reactor technology through a technology transfer with Combustion Engineering. The Chinese domestic nuclear program has been largely influenced by Western vendors as well; however, there has been significantly less emphasis on exporting the technology up to now as they master the imported technologies for their domestic program. The recent AP1000 technology transfer between Westinghouse Electric Company and China has opened up unique transnational learning opportunities between the United States and China where the lessons learned building the first AP1000 plants in China will be shared with the two U.S. utilities now embarking on new plant construction at the Vogtle and V.C. Summer sites, in Georgia and South Carolina, respectively. This talk will review both the historical experiences of exporting nuclear technology to the ROK and China, as well as the progress being made by these countries in absorbing the technology. Further, the AP1000 passive plant technology will be summarized as an example of the general trend for future designs in response to the reactor accidents at Fukushima Dai-ichi in March 2011. Finally, the advanced construction techniques being used to build AP1000 plants in both the U.S. and China will be highlighted along with their benefits in delivering new plants on schedule.
About the speaker: Dr Matzie is the former Senior Vice President and Chief Technology Officer for Westinghouse Electric Company and was responsible for all Westinghouse research and development undertakings and advanced nuclear plant development. He is also on the Board of PBMR Pty Ltd. and Chairman of the Board Technical Committee. In that role, he assures proper oversight of the design, safety, licensing, research and development, and quality aspects of the PBMR enterprise.
Previously, Dr Matzie was responsible for the development, licensing, detailed engineering, project management, and component manufacturing of new Westinghouse light water reactors and was also the Executive in charge of Westinghouse replacement steam generator projects and dry spent-fuel-canister fabrication projects. He became a Senior Vice President in 2000, when Westinghouse purchased the nuclear businesses of ABB. His career has been devoted primarily to the development of advanced nuclear systems and advanced fuel cycles, and he is the author of more than 120 technical papers and reports on these subjects.
CISAC Conference Room
Regis Matzie
Chief Technology Officer (Former)
Speaker
Westinghouse Electric Corporation
Seminars